Force= Mass x Acceleration what law is that

Answers

Answer 1
The equation "Force = Mass x Acceleration" represents Newton's second law of motion.
Answer 2

The equation "Force = Mass x Acceleration" represents Newton's second law of motion. This law states that the force acting on an object is directly proportional to its mass and the acceleration it experiences. It can be mathematically expressed as F = ma, where F is the force, m is the mass of the object, and a is the acceleration.


Related Questions

An iron anchor of density 7730 kg/m3 appears 290 N lighter in water than in air.

(a) What is the volume of the anchor?
(b) What is its mass

Answers

Answer: The volume of the anchor is approx. 29.56 m^3.

               Its mass is approx. 228,511.72

Explanation: Archimedes' Law States that "When a body is submerged in a fluid, it experiences an upward buoyant force that is equal to the weight of the fluid displaced by the body".

Here Buoyant force = 290N i.e. the difference in weight due to fluid displaced.

Buoyant force = D*V*g

D= 1025 kg/m^3 for seawater

g = 9.81 m/s^2

V = 290/1025*9.81

(a) V = 0.02884 m^3

Mass of Anchor = Density of Anchor* V

Mass of Anchor = 7730*0.02884

Mass of Anchor = 222.94 kg

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Looking at your saved spectrum (possibly star N3730-02292), determine the wavelength at which the largest amount of energy is being emitted by the stellar interior (so ignore absorption lines and look only at the general trend of the continuum). Convert its units to meters and then use Wien's Law to determine the effective surface temperature of this star. Select the closest value to your result from the list below.

1. 7600
2. 7500
3. 7550
4. 6650
5. 7300

Answers

Wien's Law states that the wavelength at which a black body radiates the most energy is inversely proportional to its temperature.

To apply Wien's Law, you would need the wavelength at which the largest amount of energy is being emitted by the star's interior.

This corresponds to the peak of the star's continuum spectrum. However, without specific data or spectral information, I cannot determine the exact wavelength for the star you mentioned.

If you have access to the star's spectrum or the peak wavelength in meters, you can use Wien's Law to determine the effective surface temperature. The formula is as follows:

λ_max = (2.898 × 10^−3 m·K) / T

where λ_max is the peak wavelength in meters and T is the temperature in Kelvin.

To find the effective surface temperature, you can rearrange the formula:

T = (2.898 × 10^−3 m·K) / λ_max

Once you have the wavelength at which the largest amount of energy is being emitted, you can substitute it into the equation and solve for T. Comparing the calculated temperature to the given options, you can select the closest value.

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could not provide the exact answer.

what is the lewis structure for 4,5,9, and 10?

Answers

Lewis's structure is defined as the structure of atoms and their positions within the molecular representation. It is the simplest structure of the valence shell representation of electrons of the molecule.

From the given,

Lewis structure of the carbonate ion has two single bonds to negative oxygen atoms and one short double bond to neutral oxygen. The carbon atom was surrounded by three oxygen atoms.

Lewis structure of ammonium ion, There are four sigma bonds of around the nitrogen atom. Nitrogen is surrounded by hydrogen bonds. The shape of NH₄⁺ is tetrahedral shape.

Lewis structure of boron trifluoride is, BF₃ has one boron atom and three fluoride atoms. The valency of fluorine is 7 and one electron is involved in bond formation with boron, leaving it with three lone pairs to form an octet. The boron atom has three electrons and involves bonding.

Lewis structure of bicarbonate ion, the bicarbonate ion has 24 electrons and 12 electron pairs. Bonding electrons involves 10 electrons and hence it forms 7 lone pairs or 14 electrons. The oxygen atom has 3 lone pairs that forms double-bonded oxygen.

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The letter 'J' represent
a. Wavelength
b. Crest
c. Trough
d. Amplitude
of the wave (3.2.1)

Answers

Explanation:

J is amplitude

I is wavelength

K is trough

L is crest

M is midline

03: Hook's law suggests that F is directly proportional to -x, how much true you have found this statement in your experiment? Explain any differences.​

Answers

Hooke's Law can be given as follows sometimes:

The restoring force of a spring is equal to the spring constant multiplied by the displacement from its normal position:

F = -kx

Where, F = Restoring force of a spring (Newtons, N)

k = Spring constant (N/m)

x = Displacement of the spring (m)

The negative sign relates to the direction of the applied force and by convention, the minus or negative sign is present in F = -kx. The restoring force F is directly proportional to the displacement (x), according to Hooke's law. When the spring is compressed, the displacement (x) is negative. It is zero when the spring is at its original length and positive when the spring is extended.

Practically, Hooke's Law is applicable only within a limited frame of reference, and through experimenting, this statement proves to be true. Because materials cannot be compressed beyond a certain size or expanded beyond a certain size without some permanent deformation or change of their original state.

The law only applies under some conditions such as a limited amount of force or deformation. Factually, many materials will noticeably deviate from Hooke's law even before those elastic limits are reached.

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An electric fan is made up of several simple machines. Tell where you would find an inclined plane on a fan. Also, tell where you would find a wheel and axle.

Answers

The fan blades or propellers of an electric fan are examples of an inclined plane. The blades' frequently curved or angled shapes provide an inclined surface that effectively moves air.

Air is forced along the incline as the blades spin, creating airflow. An electric fan's motor assembly includes a wheel and an axle. The rotor, a revolving component, is connected to the motor's central shaft, also known as the axle.

Usually cylindrical in form, the rotor serves as the wheel. The motor spins around the fixed axle when electrical power is applied, which causes the fan blades to move and the air to circulate.

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Q5. The Following potentials were measured in a circuit: i) ii) iii) E is at ground potential and A is +100 volts wrt ground D is +50 volts wrt E C is +15 volts wrt D A is +20 volts wrt B What are the potentials at B, C and D with respect to ground. What is the potential at C wrt B and D. What is the potential at B wrt E.​

Answers

Potential at C with respect to B is +65 volts (C with respect to ground) - +80 volts (B with respect to ground) is -15 volts with respect to B.

How to calculate the value

To find the potentials at B, C, and D with respect to the ground:

Potential at B with respect to ground:

Since A is at +100 volts with respect to ground and +20 volts with respect to B, we can deduce that B is 100 - 20 = +80 volts with respect to ground.

Potential at B = +80 volts with respect to ground.

Potential at C with respect to ground:

C is at +15 volts with respect to D, and D is at +50 volts with respect to E. Since E is at ground potential (0 volts), we can calculate the potential at C with respect to ground by adding the potentials:

Potential at C = +50 volts (D with respect to E) + 15 volts (C with respect to D) = +65 volts with respect to ground.

Potential at D with respect to ground:

D is at +50 volts with respect to E, and E is at ground potential (0 volts). Therefore, the potential at D with respect to ground is:

Potential at D = +50 volts (D with respect to E) + 0 volts (E with respect to ground) = +50 volts with respect to ground.

Now, let's calculate the potential at C with respect to B and D:

Potential at C with respect to B:

We know that A is at +20 volts with respect to B. Combining this information with the potential at A (+100 volts with respect to ground), we can determine the potential at B with respect to ground:

Potential at B = +100 volts with respect to ground - +20 volts (A with respect to B) = +80 volts with respect to ground.

Since we already calculated the potential at C with respect to ground as +65 volts, we can find the potential at C with respect to B:

Potential at C with respect to B = +65 volts (C with respect to ground) - +80 volts (B with respect to ground) = -15 volts with respect to B.

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An Alaskan rescue plane drops a package of emergency rations to a stranded party of explorers. The plane is travelling horizontally at 30.0 m/s at a height of 200.0 m above the ground. What horizontal distance does the package fall before landing?
Question Blank 1 of 1
type your answer...
meters

Answers

Answer:

the answer is 191.7

Explanation:

i dont know the math for it

For your assignment this week, research an athlete who has used steroids or some other performance enhancer in his/her career.

Answers

One notable athlete who has been associated with the use of performance-enhancing drugs (PEDs) is the American professional cyclist Lance Armstrong.

Armstrong gained worldwide recognition for his unprecedented seven consecutive victories in the Tour de France from 1999 to 2005. However, his remarkable achievements were tarnished when it was revealed that he had engaged in systematic doping throughout his career.

In 2012, after years of denial, Armstrong finally admitted to using banned substances, including erythropoietin (EPO), testosterone, corticosteroids, and blood transfusions, to enhance his performance. These substances boosted his endurance and oxygen-carrying capacity, providing him with an unfair advantage over his competitors. Armstrong's confession came after substantial evidence, including testimonies from teammates and extensive investigations, exposed his involvement in one of the most elaborate and sophisticated doping schemes in sports history.

Following his admission, Armstrong was stripped of his Tour de France titles and received a lifetime ban from professional cycling. The revelations surrounding his drug use had a profound impact on the sport, shaking its credibility and raising concerns about the prevalence of doping in cycling.

Armstrong's story serves as a cautionary tale, highlighting the ethical and moral dilemmas associated with doping in sports. His case underscores the importance of maintaining the integrity of athletic competition, the significance of stringent anti-doping measures, and the need for education and awareness regarding the risks and consequences of performance-enhancing substances.

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A body travels a distance of 15m from A to B and then moves a distance of 20m at right angles to
AB. Calculate the total distance travelled and the displacement.

Answers

Total distance travelled is 35m and displacement is 25m.

Distance: Distance is a scalar that expresses the total distance traveled by an object. It's a measure of physical distance that's covered and always good. The distance has nothing to do with the direction, only the magnitude of the change is determined.

Displacement: Displacement is the vector of change in the position of an object. It takes into account the magnitude and direction of change in position from the starting point to the ending point. Perception can be positive, negative or zero depending on the direction of movement.

Total distance = 15m + 20m

Total distance = 35m

Displacement = [tex]\sqrt{15^{2} +20^{2} \\}[/tex]         (as both are perpendicular to each other)

Displacement = 25m

Therefore, Total distance is 35m and displacement is 25m.

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Particles q₁ = -29.6 μC, q2 = +37.7 μC, and 93 = -10.8 μC are in a line. Particles q₁ and q2 are separated by 0.630 m and particles q₂ and q3 are separated by 0.315 m. What is the net force on particle q₁ ?

ANSWERED: 22.06 N

Answers

The net force on particle q₁ is approximately +25.6 N.

The electrostatic forces between particle q1 and the other two particles, q2 and q3, must be taken into account in order to determine the net force on particle q1. Coulomb's Law describes the electrostatic force between two charged particles:

F = k * |q₁ * q₂| / r²

F is the force, k is the electrostatic constant (9 x 109 N m2/C2), q1 and q2 are the charges' magnitudes, and r is the distance separating them.

Let's first determine the force between q1 and q2:

F₁₂ = k * |q₁ * q₂| / r₁₂²

F₁₂ = (9 x 10^9 N m²/C²) * |(-29.6 μC) * (+37.7 μC)| / (0.630 m)²

F₁₂ = (9 x 10^9 N m²/C²) * (29.6 x 10^-6 C) * (37.7 x 10^-6 C) / (0.630 m)²

F₁₂ ≈ -7.45 N

The absence of a positive sign suggests an attractive force between q1 and q2.

Let's next determine the force between q2 and q3:

F₂₃ = k * |q₂ * q₃| / r₂₃²

F₂₃ = (9 x 10^9 N m²/C²) * |(+37.7 μC) * (-10.8 μC)| / (0.315 m)²

F₂₃ = (9 x 10^9 N m²/C²) * (37.7 x 10^-6 C) * (10.8 x 10^-6 C) / (0.315 m)²

F₂₃ ≈ +33.05 N

The presence of a positive sign suggests a repulsive force between q2 and q3.

We must now add all the forces in order to determine the net force on q1:

Net force = F₁₂ + F₂₃

Net force ≈ -7.45 N + 33.05 N

Net force ≈ +25.6 N

The presence of a positive sign implies that the net force is pointing to the right, in the same direction as particle q2.

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Help please !!!!!!

Question 7
Valence number

Answers

The valence shell is the outermost shell of the atom. The electrons present in the outermost shell or valence shell are called valence electrons. The electrons are the negatively charged particle that revolves around the nucleus.

The elements are substances that are made up of one or two atoms. There are 118 periodic tables of elements. The elements are arranged by the atomic number. The first shell in the atom occupied 2 electrons and the second shell occupied 8 electrons. The electronic configuration is 2n².

From the given, Boron has 5 electrons and hence, the valence shell is 3 electrons. Carbon has 6 electrons and hence, the valence electrons are 4. Lithium has 3 electrons and hence, the valence electron is 1. Neon has 10 electrons and hence the valence electron is 8. Argon has a valence electron is 8.

Silicon has a valence electron of 4. Aluminium has a valence electron of 3. Fluorine has a valence electron of 7 and Oxygen has a valence electron is 6. Phosphorous element has a valence electron is 5.

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What wavelength of light (in nm) is associated with a frequency of 5.72 E14 Hz

Answers

Answer: 520 nm; 5.77 × 1014 Hz; 3.82 × 10−19 J

a car starts to move from rest it's velocity after 20 second is 20m/s find it's acceleration​

Answers

The acceleration of the car is 1 m/s².

As the car is at rest in the beginning,

the initial velocity of the car = 0 m/s

Final velocity after 20 seconds = 20 m/s         (given)

We know that,

Acceleration of an object = Rate of change of the velocity of the object

Now,

change in velocity of the car = final velocity of the car - initial velocity of                      the car

                                                = 20 m/s - 0 m/s

                                                = 20 m/s

And, rate of change of velocity = change in velocity/time taken

                                                    = 20/20 m/s²

                                                    = 1 m/s²

Hence, the acceleration of the car is 1 m/s².

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A heater is connected to 220 V a.c. to heat 2 kg water at 40°C. If the water absorbs 3.6 x 105 J heat energy, find the final temperature of the water. ​

Answers

Answer:

83.13 degree Celsius folks!

Explanation:

Q = msdT

Here is how you do it fella's! First off Let us know abt the above terms shall we?

Where:

Q is the heat energy absorbed by the water,

m is the mass of the water,

s is the specific heat capacity of water,

dt is the change in temperature.

Given:

Q = 3.6 x 10^5 J

m = 2 kg

s= 4,186 J/kg°C (specific heat capacity of water)

Initial temperature, T_initial = 40°C

Rearranging the formula, we have:

dt = Q / (ms)

Substituting the given values:

dt = (3.6 x 10^5 J) / (2 kg * 4,186 J/kg°C)

Calculating:

dt ≈ 43.13°C

To find the final temperature, we add the change in temperature to the initial temperature:

Final temperature = T_initial + dT(above formed temp)

Final temperature = 40°C + 43.13°C

Final temperature = 83.13°C

Therefore, the correct final temperature of the water is approximately 83.13.

4. An echo-type depth sounder uses ultrasonic
pulses. They take 25 ms to pass down, reflect from the
sea floor and return to the ship. If the speed of sound
in water is 1600 m/s how deep is the seabed

Answers

If An echo-type depth sounder uses ultrasonic pulses. They take 25 ms to pass down, reflect from the sea floor, and return to the ship. If the speed of sound in water is 1600 m/s, then the depth of the seabed is 20 meters.

A sound wave is a mechanical disturbance that propagates through a medium, such as air or water, as a series of compressions and rarefactions, carrying energy and producing the sensation of hearing when detected by the human ear. It consists of oscillations in pressure that result from the vibrations or movements of a sound source.

To determine the depth of the seabed, we can use the formula:

Depth = (Speed of Sound × Time) / 2

Given that the speed of sound in water is 1600 m/s and the time it takes for the ultrasonic pulse to travel down and back is 25 ms (0.025 seconds), we can substitute these values into the formula:

Depth = (1600 m/s × 0.025 s) / 2

Depth = (40 m) / 2

Depth = 20 meters

Therefore, the depth of the seabed is 20 meters.

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A piston is used in a hydraulic press to exert a small force on an enclosed liquid. A connecting pipe leads to a larger piston. If the piston diameters are 4.2cm and 62 cm, what magnitude of force on the small piston will balance a 25 kN force on the large piston?

Answers

The magnitude of force on the small piston that will balance a 25 kN force on the large piston is approximately 2.126 kN.

To determine the magnitude of force on the small piston that will balance a 25 kN force on the large piston, we can use the principle of Pascal's law, which states that the pressure applied to a fluid in a closed system is transmitted equally in all directions.

According to Pascal's law, the pressure on the small piston will be the same as the pressure on the large piston. The pressure can be calculated using the formula:

Pressure = Force / Area

The area of a piston is given by the formula:

Area = π * (radius)^2

Given that the diameter of the small piston is 4.2 cm, we can calculate its radius as follows:

Radius of small piston = diameter / 2 = 4.2 cm / 2 = 2.1 cm = 0.021 m

The area of the small piston is:

Area of small piston = π * (0.021 m)^2

Given that the diameter of the large piston is 62 cm, we can calculate its radius as follows:

Radius of large piston = diameter / 2 = 62 cm / 2 = 31 cm = 0.31 m

The area of the large piston is:

Area of large piston = π * (0.31 m)^2

According to Pascal's law, the pressure on both pistons is the same:

Pressure on small piston = Pressure on large piston

Therefore, we can set up the following equation:

Force on small piston / Area of small piston = Force on large piston / Area of large piston

Solving for the force on the small piston, we have:

Force on small piston = (Force on large piston * Area of small piston) / Area of large piston

Substituting the given values:

Force on small piston = (25 kN * π * (0.021 m)^2) / (π * (0.31 m)^2)

Calculating this expression, we find:

Force on small piston ≈ 2.126 kN

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Select the correct location on the image.
Which color in the visible spectrum has the highest frequency?
red
(longest
wavelength)
The Visible Light Spectrum
4
violet
(shortest
wavelength)

Answers

Violet color in the visible spectrum has the highest frequency. The violet colour has the greatest frequency of all the colours in the visible spectrum.

The range of electromagnetic waves that can be seen by the human eye is known as the visible spectrum, and it contains colours from red to violet. Based on their wavelengths, light waves that travel through a prism or diffract split into various colours.

The shortest wavelength of all the colours that may be seen, violet, correlates to a high frequency. Wavelengths and frequencies gradually change as we go from violet to red. As a result, violet has the greatest frequency of all the colours in the visible spectrum.

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A 39.4 kg beam is attached to a wall with a link and its far end is supported by a cable such that the angle between the beam and the cable is 90 degrees. If the beam is inclined at an angle of theta = 33.1 degrees with respect to horizontal, what is the magnitude of the horizontal component of the force exerted by the link on the beam?

Answers

Answer:

192.6N

Explanation:

Let's consider the forces acting on the beam:

Weight of the beam (W): It acts vertically downward and has a magnitude of W = mass * gravitational acceleration = 39.4 kg * 9.8 m/s^2.

Force exerted by the link on the beam (F_link): It acts at an angle of 90 degrees with respect to the beam and has two components: the vertical component and the horizontal component.

Tension in the cable (T): It supports the far end of the beam and acts at an angle of 90 degrees with respect to the beam. Since the angle between the beam and the cable is 90 degrees, the tension in the cable only has a vertical component.

Let's break down the forces acting on the beam:

Vertical forces:

W (weight of the beam) - T (vertical component of tension) = 0

T = W

Horizontal forces:

F_link (horizontal component of the force exerted by the link) = ?

To find the magnitude of the horizontal component of the force exerted by the link on the beam (F_link), we need to consider the equilibrium of forces in the horizontal direction.

Since the beam is inclined at an angle of θ = 33.1 degrees with respect to the horizontal, the horizontal equilibrium equation can be written as:

F_link = W * sin(θ)

Let's substitute the given values:

W = 39.4 kg * 9.8 m/s^2

θ = 33.1 degrees

F_link ≈ (39.4 kg * 9.8 m/s^2) * sin(33.1 degrees)

Using a calculator, we find that the magnitude of the horizontal component of the force exerted by the link on the beam (F_link) is approximately 192.6 N.

the object that emit light when they are hot called.......​

Answers

The object that emits light when it is hot is called luminescent.

A student named Sponge Bob has been taking a Geometry class. He has earned 185 points out of a total of 325 points possible.

What is his grade percentage?

Answers

57.14

I am on a phone i can’t explain but that’s the right anwser thank you! have a good day!

the relative velocity of two cars is 10 m/s what does it mean​

Answers

Answer:

A simple example would be where the motions of both bodies are in the same straight line - for instance, two cars travelling along a motorway. If both cars are travelling in the same direction, one at 25 ms-1 and the other at 35 ms-1 then their relative velocity is 10 ms-1 (by vector addition).

wheel with rotational inertia mounted on vertica shaft with negligible rotational inertia_ rotating with angular speed wo wheel, which is not rotating initially, having ! rotationa inertia 3lis suddenly dropped onto the same shaft as shown: The resultant combination of the two wheels and shaft will rotate at Wo/2 Wo/ 4 3W0 2Wo Wo/ 3

Answers

The resultant combination of the two wheels and the shaft will rotate at approximately half the initial angular speed, ω₀/2.

When the wheel with rotational inertia I₁, initially rotating with angular speed ω₀, is dropped onto the vertical shaft with negligible rotational inertia, the resulting combination of the two wheels and the shaft will rotate at a lower angular speed. The new angular speed can be calculated using the principle of conservation of angular momentum.

According to the conservation of angular momentum, the initial angular momentum of the system must be equal to the final angular momentum. The initial angular momentum is given by the product of the initial rotational inertia (I₁) and the initial angular speed (ω₀). Since the rotational inertia of the shaft is negligible, we can ignore its contribution.

When the wheel is dropped onto the shaft, the total rotational inertia of the system becomes the sum of the rotational inertia of the wheel (I₁) and the rotational inertia of the shaft (I₂), which is negligible. Therefore, the final angular momentum of the system is given by the product of the total rotational inertia and the final angular speed (ω).

Since the initial and final angular momenta must be equal, we have:

I₁ × ω₀ = (I₁ + I₂) × ω

As I₂ is negligible compared to I₁, we can approximate the equation as:

I₁ × ω₀ ≈ I₁ × ω

Simplifying the equation, we find:

ω ≈ ω₀/2

Therefore, the resultant combination of the two wheels and the shaft will rotate at approximately half the initial angular speed, ω₀/2.

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Q2: A light ray strikes a reflective plane surface at an angle of 54° with the surface. (i) Calculate the angle of incidence. (ii) Calculate the angle of reflection. (iii) Calculate the angle made by the reflected ray and the surface. (iv) Calculate the angle made by the incident and reflected rays.​

Answers

Answer:

To summarize:

(i) Angle of incidence = 54°

(ii) Angle of reflection = 54°

(iii) Angle made by the reflected ray and the surface = 36°

(iv) Angle made by the incident and reflected rays = 54°

Explanation:

(i) To calculate the angle of incidence, we use the fact that the angle of incidence is equal to the angle between the incident ray and the normal to the surface. In this case, the angle of incidence is given as 54°.

(ii) According to the law of reflection, the angle of reflection is equal to the angle of incidence. Therefore, the angle of reflection is also 54°.

(iii) The angle made by the reflected ray and the surface is the complement of the angle of reflection. Since the angle of reflection is 54°, the angle made by the reflected ray and the surface is 90° - 54° = 36°.

(iv) The angle made by the incident and reflected rays is the angle between the incident ray and the reflected ray. Since the angle of incidence is 54° and the angle of reflection is also 54°, the angle made by the incident and reflected rays is 54°.

1. Define gravitation.for class 10​

Answers

Gravitation, in the context of class 10, refers to the natural force of attraction between objects that have mass. It is the force that pulls objects towards each other. Gravitation is responsible for various phenomena, such as keeping objects on the ground, causing celestial bodies like planets and moons to orbit, and influencing the motion of objects in the universe. This fundamental force is described by Newton's law of universal gravitation and plays a crucial role in understanding the behavior of objects in the universe.

~~~Harsha~~~

The unit vector can be determined from the
(check all that apply)
Write down the relationship for the unit vector using the CVF of the force vector before
answering this.
O components and magnitude
direction cosines
1 p
planar and projection angle

Answers

To determine the unit vector using the components and magnitude of a vector, hence option A is correct.

We can use the following relationship:

Let's consider a force vector F with components Fx, Fy, and Fz, and a magnitude of |F|. The unit vector u in the direction of F can be expressed as:

u = (Fx/|F|) i + (Fy/|F|) j + (Fz/|F|) k

Here, i, j, and k represent the unit vectors in the x, y, and z directions, respectively.

This relationship ensures that the resulting vector u has a magnitude of 1, representing a unit vector.

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A block of density 900kg/m3 floats face down in a fluid of density 1300kg/m3. The block has a height of 5.5cm.
(a) By what depth is the block submerged?
(b) if the block is held fully submerged and then released, what is the magnitude of its acceleration?

Answers

a)  the block is submerged to a depth of approximately 0.0377 meters.

b) the magnitude of the block's acceleration when released fully submerged is approximately 0.444 m/s^2.

(a) To determine the depth to which the block is submerged, we can use Archimedes' principle, which states that the buoyant force acting on an object immersed in a fluid is equal to the weight of the fluid displaced by the object.

The weight of the fluid displaced by the block is equal to the weight of the block itself. The weight of the block can be calculated using its volume and density, where weight = density × volume × acceleration due to gravity (W = ρVg).

Let's assume the height of the block that is submerged in the fluid is h.

The volume of the block can be calculated as V = area × height, where the area is given by the product of the length and width of the block.

The weight of the block is W = ρ_block × V × g, where ρ_block is the density of the block and g is the acceleration due to gravity.

The weight of the fluid displaced is equal to the weight of the block, so we can set up the equation:

W = ρ_fluid × V_submerged × g

where ρ_fluid is the density of the fluid and V_submerged is the volume of the block submerged in the fluid.

Since the volume of the block is equal to the volume submerged, we can substitute V_submerged with A × h, where A is the area of the block.

ρ_block × A × h × g = ρ_fluid × A × h × g

The area and acceleration due to gravity cancel out, and we're left with:

ρ_block × h_block = ρ_fluid × h_submerged

Solving for h_submerged:

h_submerged = (ρ_block / ρ_fluid) × h_block

Plugging in the given values:

ρ_block = 900 kg/m^3

ρ_fluid = 1300 kg/m^3

h_block = 5.5 cm = 0.055 m

h_submerged = (900 / 1300) × 0.055 = 0.0377 m

Therefore, the block is submerged to a depth of approximately 0.0377 meters.

(b) When the block is fully submerged, it experiences an upward buoyant force equal to the weight of the fluid it displaces. When released, the block accelerates upward until the buoyant force matches its weight, resulting in a state of equilibrium.

The magnitude of the acceleration can be determined using Newton's second law, where the net force acting on the block is equal to its mass multiplied by its acceleration (F_net = m × a).

The net force acting on the block is the difference between its weight (mg) and the buoyant force (ρ_fluid × V_submerged × g).

The buoyant force is equal to the weight of the fluid displaced, which is given by the density of the fluid multiplied by the volume of the block submerged.

The mass of the block is equal to its volume multiplied by its density (m = ρ_block × V_block).

The equation for the net force becomes:

F_net = m × a

mg - ρ_fluid × V_submerged × g = ρ_block × V_block × a

The volume of the block is equal to the area of the block multiplied by the height submerged (V_block = A × h_submerged).

Substituting the values and simplifying:

900 × A × h_submerged × g - 1300 × A × h_submerged × g = 900 × A × h_submerged × a

The area of the block (A) and acceleration due to gravity (g) cancel out, and we're left with:

900 - 1300 = 900 × a

Simplifying further:

-400 = 900 × a

Dividing both sides by 900:

a = -400 / 900 = -0.444 m/s^2

The magnitude of the acceleration is 0.444 m/s^2.

Note that the negative sign indicates that the acceleration is directed opposite to the downward force of gravity, which is expected as the block is moving upward towards equilibrium.

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17. Explain why the magnetic force acting on compass 1 is greater than the magnetic force acting on compass 3

Answers

To explain why the magnetic force acting on compass 1 is greater than the magnetic force acting on compass 3, we need to consider the factors that affect the magnetic force on a compass needle.

Distance from the magnet: The magnetic force decreases with increasing distance from the magnet. If compass 1 is closer to the magnet than compass 3, it will experience a stronger magnetic force.
Strength of the magnet: The magnetic force is directly proportional to the strength of the magnet. If the magnet near compass 1 is stronger than the magnet near compass 3, it will exert a greater magnetic force on compass 1.
Alignment with the magnetic field: The magnetic force on a compass needle depends on its alignment with the magnetic field. When a compass needle is parallel to the magnetic field lines, it experiences maximum force. If compass 1 is more aligned with the magnetic field compared to compass 3, it will experience a stronger magnetic force.
Angle between the magnetic field and the compass needle: The magnetic force is strongest when the angle between the magnetic field and the compass needle is 90 degrees. If compass 1 has a smaller angle with the magnetic field compared to compass 3, it will experience a larger magnetic force.
Based on these factors, if compass 1 is closer to a stronger magnet, more aligned with the magnetic field, and has a smaller angle with the magnetic field compared to compass 3, it will experience a greater magnetic force.

I hope this helps! :)

Starting from rest, a particle confined to move along a straight line is accelerated at a rate of 4 m/s2.
Reference: Ref 2-11


Which statement accurately describes the motion of the particle?
Group of answer choices

The final velocity of the particle will be proportional to the distance that the particle covers.

The particle travels 4 meters during the first second only.

The speed of the particle increases by 4 m/s during each second.

The acceleration of the particle increases by 4 m/s2 during each second.

The particle travels 4 meters during each second.

Answers

The correct statement is that the speed of the particle increases by 4 m/s during each second.

The correct answer is Option C.

The statement that accurately describes the motion of the particle is:

"The speed of the particle increases by 4 m/s during each second."

Given that the particle is accelerated at a constant rate of 4 m/s², its speed (velocity magnitude) increases by 4 m/s every second. This means that after the first second, the particle will have a speed of 4 m/s. After the second second, the speed will be 8 m/s, and so on. The rate of increase in speed is constant at 4 m/s per second.

The other statements are not accurate:

The final velocity of the particle will not be proportional to the distance covered. The final velocity depends on the time of acceleration, not the distance covered.

The particle does not necessarily travel exactly 4 meters during the first second or each second. The distance traveled depends on the initial conditions, such as the starting position and time of observation.

The acceleration of the particle remains constant at 4 m/s². It does not increase by 4 m/s² during each second.

The correct answer is Option C.

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You are a musician and want to know the frequency of a guitar string you measure the length of the string to be 0.6meters and the tension in the string to be 0.6 newton if the mass of the string is 0.01 kg what is the frequency of string? Hertz (Hz) length meter (m) tension newton(N)mass(M) kilograms kg

Answers

The frequency of the guitar string is approximately 2.325 Hz.

To calculate the frequency of a guitar string, we can use the formula for the fundamental frequency of a vibrating string:

f = (1/2L) * sqrt(T/m)

Where:

f is the frequency,

L is the length of the string,

T is the tension in the string, and

m is the mass of the string.

Given:

Length of the string (L) = 0.6 meters

Tension in the string (T) = 0.6 newtons

Mass of the string (m) = 0.01 kilograms

Substituting the values into the formula:

f = (1/2 * 0.6) * sqrt(0.6 / 0.01)

f = 0.3 * sqrt(60)

To simplify the calculation, let's approximate the square root of 60 as 7.75:

f ≈ 0.3 * 7.75

f ≈ 2.325

This means that the string vibrates 2.325 times per second. The frequency of a vibrating string determines the pitch of the sound produced. In this case, the calculated frequency represents the fundamental frequency of the string, which is the lowest pitch that can be produced by the string when played without any harmonics or overtones.

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