[tex]O = Q/4PiR^{2}[/tex] is the surface charge density, sigma, on the outer surface of the conducting sphere.
The load per group of a double surface area is defined as surface charge density. It is a measurement of how much electric charge accumulates on a surface. It is represented by the symbol, and the SI unit is Coulombs for each square meter, abbreviated [tex]Cm^{2}[/tex].
A surface charge is a non-zero electric charge on a two-dimensional surface. These electric fields are constrained here on the 2-D surface, and the bias voltage on the surface is described by surface charge density, which is measured even in coulombs per square meter.
Surface charge density is defined in electromagnetism also as the quantity of electric charge per unit length, volume, or surface area. surface charge is inverse to the conductor radius of curvature.
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A +5.0 mC charge and a -6.0 mC charge experience an attractive force of -0.72 N ( “-“ means attractive). Determine their separation distance .
If q1=1.6*10^ -19 C and q2=3.2*10^ -19 C and the distance between the charges is 2cm. What is the force between the charges?
Show work please. Giving out brainliest.
Hey there!
Answer:
first question= approximately 6.8 cm
second question=approximately 2.88 x 10^-28 N
Explanation:
To determine the separation distance between the charges, we can use Coulomb's law, which states that the force between two point charges is given by:
F = k * q1 * q2 / r^2
where F is the force, k is Coulomb's constant (9 x 10^9 N m^2/C^2), q1 and q2 are the magnitudes of the charges, and r is the separation distance between the charges.
In this case, we have q1 = 5.0 x 10^-6 C, q2 = -6.0 x 10^-6 C, and F = -0.72 N. Plugging in these values and solving for r, we get:
-0.72 N = (9 x 10^9 N m^2/C^2) * (5.0 x 10^-6 C) * (-6.0 x 10^-6 C) / r^2
Solving for r, we get:
r = sqrt[(9 x 10^9 N m^2/C^2) * (5.0 x 10^-6 C) * (-6.0 x 10^-6 C) / (-0.72 N)]
r ≈ 0.068 m or 6.8 cm
Therefore, the separation distance between the charges is approximately 6.8 cm.
For the second question, we can use the same formula, Coulomb's law, to find the force between the charges:
F = k * q1 * q2 / r^2
Plugging in the values, we get:
F = (9 x 10^9 N m^2/C^2) * (1.6 x 10^-19 C) * (3.2 x 10^-19 C) / (0.02 m)^2
F ≈ 2.88 x 10^-28 N
Therefore, the force between the charges is approximately 2.88 x 10^-28 N.
Hope this helps!
rank the following objects in order of their circular speeds from smallest to largest.
Ranking the objects from smallest to largest circular velocity, we have:
c. a 15-kg object orbiting Earth at the same distance as the Moon (1,022 m/s).
a. a 5-kg object orbiting Earth halfway to the moon (1,681 m/s).
b. a 10-kg object orbiting Earth just above Earth's surface (7,905 m/s).
The circular velocity of an object in orbit depends on its mass, the mass of the central body, and the distance between them. The formula for the circular velocity is V = sqrt(GM/R), where G is the gravitational constant, M is the mass of the central body, and R is the distance between the two objects.
a. The distance between the 5-kg object and Earth is halfway to the Moon, which is about 384,400 km. Therefore, the distance between the object and Earth is 384,400/2 = 192,200 km. Using the formula above, the circular velocity of the object is V = sqrt((6.67x10^-11 m^3/kg/s^2) x (5.97x10^24 kg) / (1.92x10^8 m)) = 1,681 m/s.
b. The distance between the 10-kg object and Earth is just above Earth's surface, which is about 6,378 km. Using the formula above, the circular velocity of the object is V = sqrt((6.67x10^-11 m^3/kg/s^2) x (5.97x10^24 kg) / (6.38x10^6 m)) = 7,905 m/s.
c. The distance between the 15-kg object and Earth is the same as the Moon's distance, which is about 384,400 km. Using the formula above, the circular velocity of the object is V = sqrt((6.67x10^-11 m^3/kg/s^2) x (5.97x10^24 kg) / (3.84x10^8 m)) = 1,022 m/s.
The given question is incomplete, the complete question is
Rank the following objects, in order of their circular velocities, from smallest to largest
a. a 5-kg object orbiting Earth halfway to the moon
b. a 10-kg object orbiting Earth just above Earth's surface
c. a 15-kg object orbiting Earth at the same distance as the Moon
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a satellite at a particular point along an elliptical orbit has a gravitational potential energy of 5200 mj with respect to earth's surface and a kinetic energy of 4100 mj . later in its orbit the satellite's potential energy is 5600 mj . part a use conservation of energy to find its kinetic energy at that point. express your answer to two significant figures and include the appropriate units.
So the answer with two significant figures and appropriate units is Kinetic energy at second point is 3.7 x 10^6 J or 3.7 MJ.
What is kinetic energy?Kinetic energy is a form of energy that an object possesses by virtue of its motion. It is defined as the energy that an object has due to its mass and velocity. The formula shows that the kinetic energy of an object increases as its mass and velocity increase. For example, a heavy truck traveling at a high speed has a higher kinetic energy than a small car traveling at the same speed. The concept of kinetic energy is important in physics, as it is used to explain many phenomena, such as collisions, projectile motion, and the behavior of waves. It is also useful in engineering and other fields, as it helps to quantify the energy required for different types of motion, such as in machines or vehicles.
Here,
According to the law of conservation of energy, the total mechanical energy of a system remains constant if there are no external forces acting on the system. In the case of a satellite in an elliptical orbit around the Earth, the total mechanical energy is the sum of its kinetic energy and gravitational potential energy.
We can use this principle to solve for the kinetic energy of the satellite when its potential energy is 5600 MJ. We know that the total mechanical energy is conserved, so:
Total mechanical energy at first point = Total mechanical energy at second point
(KE + PE)1 = (KE + PE)2
Substituting the given values:
4100 MJ + 5200 MJ = KE2 + 5600 MJ
Simplifying:
KE2 = (4100 MJ + 5200 MJ - 5600 MJ)
KE2 = 3700 MJ
Therefore, the kinetic energy of the satellite at the second point is 3700 MJ. It's important to note that the units for energy are Joules (J), and mega-Joules (MJ) are equal to 1,000,000 Joules.
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What is the lowest frequency of light
The lowest frequency of light that can exist is zero hertz (Hz), which is also known as direct current (DC).
This is because light is a type of electromagnetic radiation that consists of oscillating electric and magnetic fields. These fields oscillate at a certain frequency, and the frequency determines the energy and properties of the light.
However, in the absence of any oscillation, there is no frequency and hence no light. In other words, the lowest frequency of light is no light at all.
It's worth noting that there are other forms of electromagnetic radiation that have frequencies lower than visible light, such as radio waves and microwaves. These types of radiation have frequencies that range from about 3 kilohertz (kHz) to several gigahertz (GHz).
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what is r gas constant in atm
The gas constant "R" is a physical constant that relates the properties of an ideal gas to the amount of the gas present, its pressure, volume and temperature.
The value of R depends on the units used for pressure, volume, and temperature.When pressure is measured in atmospheres (atm), volume is measured in liters (L), and temperature is measured in kelvin (K), the value of the gas constant is approximately 0.0821 L·atm/(mol·K).
The exact value of the gas constant R depends on the unit system used. For example, if pressure is measured in pascals (Pa), volume is measured in cubic meters (m³), and temperature is measured in kelvin (K), then the value of R is 8.314 J/(mol·K).
Similarly, if pressure is measured in pounds per square inch (psi), volume is measured in cubic feet (ft³), and temperature is measured in Rankine (R), then the value of R is 10.73 (ft·lbf)/(mol·R).
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in the hydraulic pistons shown in the sketch, the small piston has a diameter of 1.8 cm . the large piston has a diameter of 5.6 cm . (figure 1) figure1 of 1 the figure shows two hydraulic pistons: small one to the left and big one to the right. the vessels of the hydraulic system are connected. part a how much more force can the larger piston exert compared with the force applied to the smaller piston?
The larger piston can exert about 9.69 times more force than the force applied to the smaller piston.
What is the force exerted by piston?Force exerted by a piston is directly proportional to pressure applied and the surface area of piston. Since the hydraulic system is connected, pressure is same in both vessels.
Surface area of small piston is:
A_small = πr_small² = π(0.9 cm)² ≈ 2.54 cm²
Surface area of the large piston is:
A_large = πr_large² = π(2.8 cm)² ≈ 24.62 cm²
Force exerted by small piston is:
F_small = P × A_small
P is pressure and A_small is surface area of small piston.
Force exerted by large piston is:
F_large = P × A_large
P is pressure and A_large is the surface area of large piston.
F_large/F_small = (P × A_large)/(P × A_small) = A_large/A_small
F_large/F_small = 24.62 cm² / 2.54 cm² ≈ 9.69
This means that larger piston can exert about 9.69 times more force than the force applied to the smaller piston.
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how to convert 25 c to k?
25 °C is equivalent to 298.15 K. The formula to convert Celsius (°C) to Kelvin (K) is 0°C + 273.15 = 273.15K.
To convert 25 degrees Celsius (°C) to Kelvin (K), you can use the following formula:
0°C + 273.15 = 273.15K
Plugging in the given value of 25 °C, we get:
K = 25 + 273.15 = 298.15 K
Therefore, 25 °C is equivalent to 298.15 K.
The Kelvin (K) scale is an absolute temperature scale where 0 K represents absolute zero, the theoretical temperature at which all matter would have zero thermal energy. On the Kelvin scale, the size of one degree is the same as that of one Celsius degree, but the Kelvin scale starts at absolute zero, while the Celsius scale starts at the freezing point of water.
To convert a temperature from Celsius to Kelvin, you simply need to add 273.15 to the Celsius temperature. This is because the size of one Kelvin degree is the same as one Celsius degree, but the Kelvin scale starts at absolute zero (which is -273.15 °C), so adding 273.15 to a temperature in Celsius converts it to Kelvin.
The Kelvin scale is used in many scientific fields, especially in physics and chemistry, where absolute zero is a critical reference point. It is also used in engineering and technology, particularly in the fields of thermal engineering and materials science
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A king’s crown, presumed to be pure gold, has a mass of 1.00 kg. When submerged in water its apparent mass is measured to be 0.92 kg. Is the crown made of pure gold (p = 19.3 kg/liter)?
The crown is not made up of pure gold as its density which is calculated is observed to be less than that of the pure gold.
The formula for an object's density is ρ = m/v.
where,
m is mass
v is volume
Mass of the crown is given as 1 kg.
When submerged in water, its mass becomes 0.92 kg.
So, volume of water displaced is 0.08 L.
Density of pure gold is given as, ρ gold = 19.3 kg/L
The amount of water that is displaced has the same volume as the crown. Let us calculate the density of crown,
ρ crown = m/v = 1/0.08 = 12.5 kg/L
Comparing the above obtained value with the density of pure gold we have, ρ crown < ρ gold.
Thus, the crown is not made up of pure gold.
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What is equation for power ?
Answer:
Explanation:
Power is defined as the rate at which work is done
Power = work/time and is measured in Watts
An insulating sphere of radius a, centered at the origin, has a uniform volume charge density rho. Find the electric field E(→r) inside the sphere (for r
The electric field E(→r) inside the sphere is: E(→r) = (ρ × r) / (3ε₀), where ρ is the uniform volume charge density, r is the distance from the origin, and ε₀ is the electric constant.
To find the electric field E(→r) inside the sphere with a uniform volume charge density ρ, we can use Gauss's law.
First, we choose a spherical Gaussian surface of radius r < a, centered at the origin. The electric field is radial and has the same magnitude at every point on the surface due to the symmetry of the charge distribution.
By Gauss's law, the electric flux through the surface is given by:
Φ_E = E(→r) × 4πr²
where Φ_E is the electric flux through the surface and E(→r) is the electric field at every point on the surface.
The total charge enclosed by the surface is given by:
Q_enc = (4/3) × πr³ × ρ
where Q_enc is the total charge enclosed by the surface and ρ is the charge density.
By Gauss's law, the electric flux through the surface is also related to the total enclosed charge by:
Φ_E = Q_enc / ε₀
where ε_0 is the electric constant.
Combining these equations, we have:
E(→r) × 4πr² = (4/3) × πr³ ρ / ε_0
Solving for E(→r), we get:
E(→r) = (ρ × r) / (3ε₀)
Therefore, the electric field E(→r) inside the sphere is directly proportional to the distance from the origin and the charge density, and is independent of the choice of direction.
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what is 103 °F to °C?
103 F 103 F is therefore identical to 39 C 39 C.Celsius to Fahrenheit Conversion: 103 °F.Starting from 103, subtract 32 to convert to Fahrenheit. To get 39.444 degrees Celsius, multiply 71 by 5 over 9.
People who have fevers of 103 F (39.4 C) or above typically appear and act poorly. Your comfort and ability to sleep are the key goals of treatment. We employ conversion formulas that are similar to those found in most textbooks. Add 32 and multiply by.5556 (or 5/9) to convert temperatures from degrees Fahrenheit to degrees Celsius. Add 32 and multiply by 1.8 (or 9/5) to convert temperatures from degrees Celsius to Fahrenheit. 40 degrees Celsius, or 104 degrees Fahrenheit, is the corresponding temperature in Celsius.When a child has an oral or rectal temperature of 38.2 Celsius (100.7 Fahrenheit) or above, the child is said to have a fever.When a child has an oral or rectal temperature of 38.2 Celsius (100.7 Fahrenheit) or above, the child is said to have a fever.
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the factors that influence the strength of gravity between two objects are their mass and their
The factors that influence the strength of gravity between two objects are their mass and their distance apart.
Gravity is a force that exists between any two objects with mass, pulling them towards each other. The strength of this force depends on the masses of the two objects and the distance between them. The greater the mass of the objects, the stronger the gravitational force between them.
However, the gravitational force weakens as the distance between the two objects increases. This relationship is described by the inverse square law, which states that the force of gravity is inversely proportional to the square of the distance between the two objects.
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A pool ball of mass 100 g and velocity (5, -4) m/s collides with a stationary pool bar of the same mass. After the collision, one of the pool balls has a velocity (2, -3) m/s. Find the velocity of the other pool ball.
The velocity of the other pool ball is (3, -1) m/s.
How solve this problem?We can solve this problem using the principle of conservation of momentum, which states that the total momentum of a system remains constant if no external forces act on it.
Let the initial velocity of the stationary pool bar be (0,0) m/s. The initial momentum of the system is:
p_initial = m1 * v1 + m2 * v2
where m1 and m2 are the masses of the pool balls, and v1 and v2 are their initial velocities.
Substituting the given values, we have:
p_initial = 0.1 kg * (5, -4) m/s + 0.1 kg * (0,0) m/s
= (0.5, -0.4) kg m/s
After the collision, the total momentum of the system is still conserved, but now we have one ball at rest and the other moving with a velocity of (2, -3) m/s. Let the velocity of the other pool ball be (vx, vy) m/s. Then we have:
p_final = m1 * (2, -3) m/s + m2 * (vx, vy) m/s
where m1 and m2 are still the masses of the pool balls.
Setting the initial and final momenta equal and solving for (vx, vy), we get:
p_initial = p_final
0.5, -0.4 = 0.1 * (2, -3) + 0.1 * (vx, vy)
0.5, -0.4 = (0.2, -0.3) + (0.1vx, 0.1vy)
0.5 - 0.2 = 0.1vx
-0.4 + 0.3 = 0.1vy
vx = 3 m/s
vy = -1 m/s
Therefore, the velocity of the other pool ball is (3, -1) m/s.
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Raj drinks a glass of water in his kitchen. The water is at room temperature, and Raj decides to make it colder by adding ice. Which of the following describes why the ice cubes will melt?
Answer:
The tempature of the room.
Explanation:
Due to the temperature of the room being above the ice freezing point, the ice will melt.
where did darwin do most of the work which led to his hypothisis on evolution
Answer:
He collected many specimens of the finches on the Galapagos Islands. These specimens and his notebooks provided Darwin with a record of his observations as he developed the theory of evolution through natural selection.
a rubber ball bounces off of a wall with an initial speed v and reverses its direction so its speed is v right after the bounce. as a result of this bounce, which of the following quantities of the ball are conserved? (there could be more than one correct choice.) a) the momentum of the ball b) both the momentum and the kinetic energy of the ball c) the kinetic energy of the ball d) none of the above quantities are conserved.
Here, both the momentum and kinetic energy of he ball are conserved. There is no change in the magnitude of the speed thus, its kinetic energy is conserved.
What is kinetic energy ?The kinetic energy of an object is the energy generated by virtue of its motion. It is related to its mass and velocity by the expression written below:
Ke = 1/2 mv²
The momentum of an object is the product of its mass and velocity. For an elastic collision both momentum and kinetic energy is conserved. But in the case of an inelastic collision, there is some energy loss and the kinetic energy is not conserved but momentum is conserved.
Here, the ball bounces by colliding with the floor, where its direction is changing but not the magnitude of speed. Hence, both the momentum and kinetic energy are conserved.
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According to general relativity, earth goes around the sun rather than flying straight off into space because___
According to general relativity, Earth goes around the sun rather than flying straight off into space because of the curvature of spacetime caused by the mass of the sun.
The general theory of relativity explains how gravity is actually caused by the curvature of spacetime and not by any actual force at all. The mass of the sun bends spacetime, which in the case of the Earth orbiting the sun causes the Earth to move on a curved orbit. The orbit of the Earth is visible as a curving path.
The Earth would indeed continue to move in a straight line if it weren't for the sun's mass's effect on the curvature of spacetime. But, general relativity offers a more thorough understanding of gravity and demonstrates that the Earth's and other solar system objects' motions are caused by the curvature of spacetime.
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The following vectors would carry me how far left or right (x-direction only):
A = 230<15o
B = 120<237o
C = 212<188o
Question 2 options:
A)10. 9 Right
B) 70. 6 Left
C) 10. 9 Left
D) 53. 1 Left
The vector A carries you 222.487 units to the right, vector B carries you 86.424 units to the left, and vector C carries you 42.324 units to the left in the x-direction
To determine the x-direction component of each vector, we need to use trigonometry. We can use the cosine function to find the x-component of each vector since cosine gives the adjacent side length of a right triangle.
For vector A:
The length of the adjacent side (x-component) is given by: cos(15°) = 0.9659
The x-component of vector A is therefore: 230 x 0.9659 = 222.487
For vector B:
The length of the adjacent side (x-component) is given by: cos(237°) = -0.7252 (since cosine is negative in the second and third quadrants)
The x-component of vector B is therefore: 120 x -0.7252 = -86.424
For vector C:
The length of the adjacent side (x-component) is given by: cos(188°) = -0.1997 (since cosine is negative in the second and third quadrants)
The x-component of vector C is therefore: 212 x -0.1997 = -42.324
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A soccer ball has mass when full of air of 0.45 kg. If a goalkeeper kicks this ball,
the ball will leave their foot with a velocity of 33 m/s. This kick usually occurs
when the goalkeeper's foot is 0.8 m above the ground. If another player "traps"
the ball using their chest, which is an average of 1.4 m above the ground, how fast
is that soccer ball moving right before it hits the chest of the player? [Ignore
Friction]
The soccer ball is moving at a speed of approximately 10.84 m/s just before it hits the player's chest.
What is the conservation of energy?The conservation of energy means that there is not any loss of energy but energy changes from one form to another.
To solve this problem, we can use the principle of conservation of energy, which states that the total energy in a system is conserved. In this case, we can assume that the system consists of only the soccer ball.
The initial energy of the soccer ball is given by its kinetic energy:
KE₁= 0.5 x m x v₁²
Where m is the mass of the soccer ball and v₁ is its velocity just after being kicked by the goalkeeper.
The final energy of the soccer ball just before it hits the player's chest is given by its potential energy and kinetic energy:
KE₂ + PE₂= m x g x h₂ + 0.5 x m x v₂²
Where h₂ is the height of the player's chest above the ground, g is the acceleration due to gravity (9.81 m/s²), and v₂is the velocity of the soccer ball just before it hits the player's chest.
Since energy is conserved, we can equate the initial energy to the final energy:
KE₁ = KE₂ + PE₂
Substituting the expressions for KE₁and KE₂+ PE₂, we get:
(0.5 x m x v₁²) = (m x g x h₂) + (0.5 x m x v₂²)
Simplifying and solving for v2, we get:
v₂ = √(v₁² - 2 x g x (h₂ - 0.8))
Substituting the given values, we get:
v₂ = √((33 m/s)² - (2 x 9.81 m/s²) x (1.4 m - 0.8 m))
v₂= 10.84 m/s
Therefore, the speed of the soccer ball will be 10.84 m/s just before it hits the player's chest.
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this suspicious form was recovered from a nodule biopsy. it measures 300 µm in length and lacks a sheath. identify the suspicious form.
Onchocerca volvulus microfilaria
The only microfilarial option without a sheath that is frequently found in nodule biopsies is Onchocerca volvulus.
Infected people may have trypanosoma trypomastigotes, which measure 15-20 m, in their blood, lymphatic fluid, or CSF.A pseudoparasite is a false identification of something that could be mistaken for a parasite. Comparing Wuchereria bancrofti microfilaria to Onchocera microfilaria, they are sheathed and a little bit smaller in size. The lymphatic tissues, particularly those in the lower limbs, are home to W. bancrofti microfilaria. The lifetime risk of thyroid cancer is 1.1% for the population of the United States. A fine needle aspiration biopsy is typically the next step when a thyroid nodule is worrisome, meaning it exhibits traits that could indicate thyroid cancer (FNAB) . When a follicular or hurtle cell induced lesion is the diagnosis, a thyroid biopsy is considered "suspicious." Normal thyroid cells include follicular and hurtle cells. The current analysis of thyroid biopsy data cannot distinguish between noncancerous adenomas and follicular or hurtle cell carcinoma.
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name given to elements that are usually brittle and poor conductors of heat and electricity is
Non-metals are elements that often acquire electrons during chemical processes to generate anions. These substances are electronegative ones.
What are some poor conductors?As they are ineffective electrical conductors, glass and plastic are examples of insulators. They are used to stop electricity from entering parts of our body that are dangerous or useless. We can handle cables safely because of their plastic coating.
Does Copper make for a poor conductor?The fact that copper is widely used in all types of electrical wiring might indicate that metal is an excellent conductor of electricity. Copper contains a lot of free electrons that can conduct electricity, which is why metal is an excellent conductor of electricity.
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how much would a 55 kg person weigh on phobos? express your answer in newtons.
The weight on Phobos will be 0.3135 N
How much would a 55 kg person weigh on phobos?We know that weight is defined as:
W = mass*gravitational acceleration.
Here we know that the mass of the person is 55 kilograms, and we also know that the gravitational acceleration on phobos is:
g = 0.0057 m/s²
Then the weight will be
W = 55kg*0.0057 m/s² = 0.3135 N
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if we are using a reference voltage of 5v and analogread() returns a value of 708, what is the corresponding voltage? round your answer to the nearest tenth of a volt.
If we are using a reference voltage of 5 volts and analogread() gives a value of 708, then 3.5 is the appropriate voltage.
A voltage simple definition is what?When charged electrons (current) are forced through a conducting loop by the pressure of an electrical circuit's power source, they may perform tasks like lighting a lamp. In a nutshell, voltage equals pressure and is expressed in volts (V).
What does voltage mean?Volt. The derived unit for electric potential, voltage, and electromotive force is the volt (symbol: V). The Italian physicist Alessandro Volta (1745–1827), who created the voltaic pile, arguably the first chemical battery, is honored by having his name attached to the volt.
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Two similar spheres A and B, have charges of +2 * 10 ^ -6 * C and + 1 * 10 ^ -6* C The of the electrostatic force on A due to B is 2.4 Newtons. What is the magnitude of electrostatic force on B due to A. Why ?
Show work please and explain.
The magnitude of the electrostatic force on sphere B due to sphere A is also 2.4 N, because the forces are equal in magnitude but opposite in direction as they form an action-reaction pair.
How to find the magnitude of electrostatic force on B due to A?First by Coulomb's Law, the electrostatic force F between two point charges Q1 and Q2, separated by a distance r, is given by
F = k * (Q1 * Q2) / r^2
Where k is the Coulomb constant, which has a value of 9 × 10^9 N·m^2/C^2.
In this case, we have two spheres A and B, with charges +2 * 10^-6 C and +1 * 10^-6 C, respectively. The electrostatic force on A due to B is given as 2.4 N.
To find the electrostatic force on B due to A, we can use Coulomb's Law and the fact that the force between the two spheres is an action-reaction pair, meaning that the forces on A and B are equal in magnitude but opposite in direction. Therefore, the magnitude of the electrostatic force on B due to A is also 2.4 N.
We can see this by rearranging Coulomb's Law as:
F = k * (Q1 * Q2) / r^2
=> Q2 = (F * r^2) / (k * Q1)
where
Q2 is the charge on sphere B, R is the distance between the two spheres, and we have used the known force and charge on sphere A.Substituting the values given, we get:
Q2 = (2.4 N * (1 m)^2) / (9 × 10^9 N·m^2/C^2 * 2 × 10^-6 C) = 0.133 C
Therefore, the magnitude of the electrostatic force on sphere B due to sphere A is also 2.4 N, because the forces are equal in magnitude but opposite in direction as they form an action-reaction pair.
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four parallel-plate capacitors are constructed using square plates, and each has a dielectric inserted between the plates.
Each capacitor's capacitance will decrease in the following order:
C> B> A> D.
An object that stores electrical energy is a capacitor. By building up electric charges on two nearby surfaces that are isolated from one another, a capacitor is a device that stores electrical energy in an electric field.
A passive electrical component having two terminals is a capacitor. Capacitance refers to a capacitor's effect. Faraday is the SI unit for capacitance (F).
C = ε₀ K A/ d
where the capacitor's area is A, the electric permittivity is 0, and the distance between the plates is d
The capacitance is inversely proportional to the distance and directly proportional to the cross-sectional area of the plates.
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Note: the full question is
Four parallel plate capacitors are constructed using square plates, and each has a dielectric inserted between the plates.
Sort the capacitance of each capacitor from highest to lowest.
Capacitor A: long side
l, distance between plates D, dielectric constant
Capacitor B: side length l
2, the distance between the plates D 2, the dielectric constant 4k.
Capacitor C: side length 2l, distance between plates D, dielectric constant 2k.
Capacitor D: side length l, plate spacing 2D, dielectric constant 2k.
How to convert 99.4 f to c
The conversion of 99.4 °F(Fahrenheit) is equivalent to 37.44 °C.
A temperature unit developed from the SI (International System of Units) is Celsius (symbol: °C).
Prior to the adoption of the metric system, Fahrenheit (symbol: °F) was a commonly used measurement of temperature.
To convert Fahrenheit (°F) to Celsius (°C) we have to first subtract 32 from Fahrenheit and then multiply it by .5556 or 5/9.
We have to convert 64 degrees Fahrenheit (°F) to Celsius (°C),
We can use the following formula:
°C = (°F - 32) x 5/9
As per the given information,
°F = 99.4
By placing the value 99.4 for °F, we get:
°C = (99.4 - 32) x 5/9
°C = 37.44 (rounded to two decimal places)
Therefore, 99.4 °F is equivalent to 37.44 °C.
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What is the electric potential vtot at the center of the square? make the usual assumption that the potential tends to zero far away from a charge. express your answer in terms of q, d, and appropriate constants?
Vtot=(5kq√)/d
All of the PE on charges 2q will be changed into its KE. A electric potential vtot just at square's center is determined by the equation KE of a load 2q ≈ (12 - 3*sqrt(2))*kq2/d.
What does it mean to have an electric potential?The effort required to move a unit charge of one place to another within an electric field is referred to as electric potential. Although any site beyond the area of the given positive ions can be employed, Earth is usually used as the bench mark. potential power.
What is electric potential, and what is its SI equivalent?The effort required to convey a unit positive electrical charge from such an infinitely far away to a certain place is measured as the electromotive force at that location. Volt (V), which is also known as Joule per Coulomb, is the SI unit for electric potential.
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A block is dropped from a high tower and is falling freely under the influence of gravity. Which one of the following statements is true concerning this situation? Neglect air resistance.
(a) As the block falls, the net work done by all of the forces acting on the block is zero joules.
(b) The kinetic energy increases by equal amounts over equal distances.
(c) The kinetic energy of the block increases by equal amounts in equal times.
(d) The potential energy of the block decreases by equal amounts in equal times.
The potential energy of the block decreases by equal amounts in equal times. Option D is the answer.
The potential energy of the blockWhen the block is dropped from a high tower and is falling freely under the influence of gravity, the only force acting on it is the force of gravity. This force does work on the block as it falls, converting the potential energy of the block due to its position to kinetic energy as it gains speed.
The potential energy of the block is given by its position above the ground and is equal to mgh,
where m is the mass of the block,
g is the acceleration due to gravity,
and h is the height of the block above the ground.
As the block falls, its height decreases, and hence its potential energy also decreases. This potential energy is converted to kinetic energy, given by (1/2)mv^2, where v is the speed of the block.
Since the force of gravity is constant, the block experiences a constant acceleration, and its speed increases at a constant rate. This means that the kinetic energy of the block increases by equal amounts in equal times (c) and the potential energy of the block decreases by equal amounts in equal times (d).
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what produces keratin that starts the death of skin cells
Answer:
Keratinocytes are the predominant cell type of epidermis and originate in the basal layer, produce keratin, and are responsible for the formation of the epidermal water barrier by making and secreting lipids.
Answer:
Keratinocytes, which are cells in the epidermis, produce keratin, which helps create a protective barrier on the skin's outer layer [1]. As the keratinocytes produce keratin, they start to die, leading to the death of the skin cells.
what does a blueshifted spectrum indicate?
The blueshift spectrum reveals how far away an object is from the Earth.
Any decrease in wavelength (increase in energy) with a commensurate rise in frequency of an electromagnetic wave is referred to as a blueshift. This causes a hue to shift towards the blue end of the spectrum in visible light.
As an object moves away from us, the light it emits is known as redshift; when an object moves towards us, the light it emits is known as blueshift. Astronomers use redshift and blueshift to determine how far an object is from Earth; the notion is critical in documenting the expansion of the cosmos.
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