A police car is heading towards you with its siren blaring. Explain what is
happening to the wavelength as the police car is moving towards you and what is
happening to the wavelength as the police car moves away from you.Write 2-3 sentences.

If the cart is accelerating in the forward direction the ball would fall behind the tube.

The rate at which the speed and direction of a moving object vary over time. A point or object going straight ahead is accelerated when it accelerates or decelerates.

Some key features of acceleration are-

The formula of acceleration is -

[tex]a=\frac{\Delta v}{\Delta t}=\frac{v_{f}-v_{i}}{\Delta t}[/tex]

[tex]v_{f}[/tex] is the final velocity

[tex]v_{i}[/tex] is the initial velocity

Δt is total time between both velocities.

To know more about the acceleration, here

https://brainly.com/question/460763

#SPJ4

The complete question is-

A cart that is rolling at a constant velocity on a level table fires a ball straight up out of a vertical tube. Does your answer change if the cart is accelerating in the forward direction? If so, how?

Normal is the  other half of an action-reaction pair

If a person is sitting on a chair , there must be a gravitation force acting in downward direction which is equal to the weight of that person . That means the person is exerting a force on the chair equal to its weight . But the person is not falling down the chair , because of newtons third law of motion .

There must be a counter force which is equal and opposite to the force exerted by the person on the chair , in order to make net force equal to zero and to make that man in stationary state ( no movement )  .That force is called Normal force which is been acted by the chair on the person .This implies Normal is the  other half of an action-reaction pair

learn more about Force:

https://brainly.com/question/14110395?referrer=searchResults

#SPJ4

During primary second stage underwater recovery, it is acceptable to switch to your alternate air source while you search for your primary which makes it a true statement.

This involves the intermediate pressure air from the regulator hose being taken and reduced to ambient pressure.

Switching to your alternate air source  will ensure that the diver breathe safely which is why True was chosen.

Read more about Primary second stage underwater here https://brainly.com/question/17315714

#SPJ1

Then the separation between the two pennies will be O.354m.

To find the correct answer, we need to know about the electrostatic force of attraction.

                 [tex]m=3*10^{-3}kg\\n=4*10^{12}\\[/tex]

                 [tex]Q_1=4*10^{12}*1.6*10^{-19}=6.4*10^{-7}C.\\Q_2=-Q_1[/tex]

                    [tex]F_e=\frac{kQ_1Q_2}{r^2} =mg\\[/tex] , here given that the electrostatic force equal to the weight of the system.

                  [tex]r=\sqrt{\frac{kQ_1Q_2}{mg} } =\sqrt{\frac{(6.4*10^{-7})^2}{4*3.14*8.85*10^{-12}*3*10^{-3}*9.8} }\\\\r=0.354m[/tex]

Thus, we can conclude that the separation between the pennies is 0.354m.

Learn more about the electrostatic force here:

https://brainly.com/question/28108740

#SPJ1

0.354m will be the separation between the two pennies.

We must understand the electrostatic force of attraction in order to arrive at the correct solution.

                  [tex]Q_1=ne=4*10^{12}*1.67*10^{-19}=6.4*10^{-7}C\\Q_2=-Q_1[/tex]

                      [tex]F=\frac{kQ_1Q_2}{R^2}=mg[/tex]

Given that the electrostatic force in this instance is equal to the system's weight.

                    [tex]R=\sqrt{\frac{kQ_1Q_2}{mg} } =0.354m[/tex]

As a result, we may say that the distance between the pennies is 0.354m.

Learn more about electrostatic force here:

https://brainly.com/question/28108740

#SPJ1

Work done by the force is 6.802 Joule

Given:

Therefore displacement of coin along x axis,x=3m

displacement of coin along y-axis,y=4m

force has magnitude = 2.0 N

To Find:

Work done by the force

Solution: Work is done whenever a force moves something over a distance. You can calculate the energy transferred, or work done, by multiplying the force by the distance moved in the direction of the force.

component of force along x-axis, F = 2.0Ncos100

F = 2x(-.173)

F = -(.346)N

component of force in y direction,F₁ = 2.0sin100

F = 2x(.98)

F = 1.96N

work is done by the force on the coin during the displacement will be given as

W = Fx*x + Fy*y

W = -(.346) x 3m + 1.96 x 4

W = 6.802 Joule

Hence, Work done by the force is 6.802 Joule

Learn more about Work done here:

https://brainly.com/question/18762601

#SPJ4

Answer: Two celestial objects are in space: one with a mass of 8.22 x 109 kg and one with a mass of 1.38 x 108 kg. If they are separated by a distance of 1.43 km, then, the magnitude of the force of attraction (in newtons) between the objects will be 52.9kN

Explanation: To find the answer we need to know more about the Newton's law of gravitation.

                        [tex]F=\frac{GMm}{r^2} \\where, G=6.67*10^-11Nm^2kg^-2[/tex]

                      [tex]M=8.22*10^9kg\\m=1.38*10^8 kg\\r=1.43*10^3m[/tex]

               [tex]F=6.67*10^-11*\frac{8.22*10^9*1.38*10^8}{1.43*10^3} =52.9kN[/tex]

Thus, if two celestial objects are in space: one with a mass of 8.22 x 109 kg and one with a mass of 1.38 x 108 kg and, If they are separated by a distance of 1.43 km, then, the magnitude of the force of attraction (in newtons) between the objects will be 52.9kN.

Learn more about the Newton's law of gravitation here:

https://brainly.com/question/28045318

#SPJ4

The total internal energy of the gas is 5104 Joule.

Internal energy of helium gas=

3/2 × 1.3 × 8.31 × 315

= 5104 joule

Thus, we can conclude that the internal energy of the helium gas is 5104 Joule.

Learn more about the internal energy here:

brainly.com/question/23876012

#SPJ1

The mechanical power expended when transporting the wheelchair is 25 Watts

Power is defined as  the amount of energy transferred or converted per unit time. The unit of power is measured in Watts. The higher units are kilowatts, megawatts etc.

The formula for calculating the power expended is expressed as:

Power = Workdone/Time

Since workdone = force * distance, the formula for power will be:

Power = Force*distance/Time

Given the following parameters

Force = 50N

distance = 0.5m

time = 1 second

Substitute to determine the power

Power = 50*0.5/1

Power = 25/1

Power = 25Watts

Hence the mechanical power expended when transporting the wheelchair is 25 Watts

Learn more on power here; https://brainly.com/question/24858512

#SPJ1

Solar power differ to fossil fuel power in that solar power is a much more optimal resource than fossil fuels

Renewable energy simply refers to energy that is not depleted when used. An example of such is solar power.

So therefore, solar power differ to fossil fuel power in that solar power is a much more optimal resource than fossil fuels

Learn more about renewable energy:

https://brainly.com/question/79953

#SPJ1

The kinetic energy of an object with a mass of 10 kilograms traveling at a speed of 10 meters per second is 500J (option C).

The kinetic energy of a body refers to the energy due to the motion of the body. The kinetic energy can be calculated using the following formula:

K.E = ½ × m × v²

Where;

K.E = ½ × 10 × 10²

K.E = 5 × 100 = 500J

Therefore, the kinetic energy of an object with a mass of 10 kilograms traveling at a speed of 10 meters per second is 500J.

Learn more about kinetic energy at: https://brainly.com/question/12669551

#SPJ1

Answer:

none

Explanation:

stranger mid mid mid mid

Answer:

My favorite stranger things character is Eleven also known as Millie Bobby Brown

Explanation:

I hope this helps and have a good day!

The position of the image, if the object moved to new position 20.0 cm from the mirror is 5.7372 cm.

As per the lens equation,

[tex]\frac{1}{p1} +\frac{1}{q1} =\frac{1}{f}[/tex]

Since, p1 is the position of object initially, q1 is the position of the image initially and f is the focal length of the lens.

[tex]\frac{1}{10.4} +\frac{1}{7.8} =\frac{1}{f}[/tex]

[tex]0.0961+0.1282=\frac{1}{f}[/tex]

[tex]f=4.458[/tex] is the focal length of the given lens.

Then the object moved to second position of p2=20.0 cm from the mirror.

So, [tex]\frac{1}{p2} +\frac{1}{q2} =\frac{1}{f}[/tex]

[tex]\frac{1}{20} +\frac{1}{q2} =\frac{1}{4.458}[/tex]

[tex]\frac{1}{q2}=0.2243-\frac{1}{20}[/tex]

[tex]\frac{1}{q2}=0.1743[/tex]

Hence, q2=5.7372 cm is the new position of the image.

Initially, the object placed 10.40 cm from the mirror, then the image formed at 7.80 cm, then the object moved to 20.0 cm from the mirror, then the new image formed at 5.74 cm.

Learn more about the Lens equation on

https://brainly.com/question/11971432

#SPJ1

The change in the gravitational potential energy of the boy is 838 J.

So the correct choice is 838 J.

What is gravitational potential energy?

The energy possessed by an object due to its position from the chosen reference point when gravity is acting on that object is called gravitational potential energy.

The formula to calculate the difference in the potential energy is given by the formula,

U=m*g*h

where U is the difference in the potential energy, m is the mass, g is the acceleration due to gravity, and h is the height difference between the initial height and the final height.

The height difference is given by the formula,

h=h2-h1

where h2 is the final height and h1 is the initial height.

Given that the initial height is 1.30 m and the final height is 3.20 m, substitute h1=1.30 m and h2=3.20 m in the formula of height to calculate the height difference.

h=3.20-1.30

h=1.90 m

The mass of the boy is 45 kg and the value of g is 9.8 m/s^2. Substitute m=45 kg, g=9.8 m/s^2, and h=1.90 m in the formula of the gravitational potential energy to calculate the difference in the gravitational potential energy.

U=45*9.8*1.90

U=837.9 J

U≈838

Learn more about the gravitational potential energy:

https://brainly.com/question/16155035

#SPJ4

Mass of Derrick at a height 4.3 m having 2730 joule of energy is 65 Kg.

Mass of Derrick= 2730/(9.8×4.3)

= 65 kg

Thus, we can conclude that the mass of Derrick is 65 Kg.

Learn more about the gravitational potential energy here:

brainly.com/question/26588957

#SPJ1

If the resistance of the wire in the windings of an electric starter motor for an automobile is [tex]2.40\times 10^{-2}\text{ } \Omega[/tex] and the motor is connected to a 13-V battery then the amount of current flow through the motor is [tex]5.42 \times10^2\text{ A}[/tex].

Calculation:

Step-1:

It is given that the resistance of the wire in the windings of an electric starter motor for an automobile is [tex]2.40\times 10^{-2}\text{ } \Omega[/tex] and the motor is connected to a 13-V battery. It is required to find the amount of current flow through the motor.

It is known from Ohm's law, it is known that voltage is the multiplication of the current and the resistance of a circuit.

V=IR

Where V is the voltage, I is current, and R is the resistance.

Step-2:

Substituting the given values into the equation to get the value of the current.

[tex]$$\\\begin{aligned}\\V&=IR\\\Rightarrow13 \text{ V}&=I \times 2.40\times10^{-2} \text{ }\Omega\\\Rightarrow I&=\frac{13}{2.40\times10^{-2}} \text{ A}\\ &=5.42 \times10^2\text{ A}\\\end{aligned}\\$$[/tex]

Learn more about battery, current and resistance here,

https://brainly.com/question/14996728

#SPJ4

The volume of gas in a flexible container at a depth of 10 m/33 ft will expand to double its original volume if taken to the surface.

The amount of space that a substance or object occupies.

Volume is denoted with letter V

Generally, a gas molecule is simply defined as a combination of numbers of atoms that are connected one to another.

here, 10 m/33 feet of sea water is taken to exerts a gauge pressure that is the same pressure as the atmosphere.

This means that we add one atmosphere/bar pressure for every 10 m/33 feet you descend.

The effect of this is that,

at 10 m/33 ft absolute pressure is two ata/bar

Adding another 10 m/33 ft to this depth to make it 20 m/66 ft, puts you under under three ata/bar of pressure and so on.

Descending to a depth it means that you have double the ata/bar pressure acting on you. If you decide to resurface, the pressure on the flexible container will reduce by a factor of two.

Since volume is inversely proportional to the pressure,

If the pressure reduces by a factor of 2, then the volume will increase by a factor of two.

Learn more about volume of gas here:

https://brainly.com/question/17328636

#SPJ4

All five stars appear at the same place along the horizontal axis showing spectral type.

Because spectral type is related to surface temperature, all five stars must have the same surface temperature.

Now proceed to Part C to determine how these stars vary in luminosity.

This refers to the heavenly body that is a natural luminous body that is visible in the sky, especially at night

Hence, we can see that based on the ranking of stars, the surface temperature of each star is taken into account, and based on their spectral type, the stars all have the same temperature.

Therefore, to show the difference between the stars, their luminous intensity needs to be analyzed,

Read more about stars here:

https://brainly.com/question/1320222

#SPJ1

D. The energy transfer he is experiencing is Chemical to kinetic.

The principle of conservation of energy states that energy can neither be created nor destroyed but can be converted from one form to another.

The apple eaten by the bungee jumper will provide chemical energy which will be converted into kinetic energy of the jumper once he is in motion.

Thus, the energy transfer he is experiencing is Chemical to kinetic.

Learn more about kinetic energy here: https://brainly.com/question/25959744

#SPJ1

The term for the principal that an object in motion remains in motion until it is met by an outside force is called inertia

Newton's first law states that if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force .This principal is named as inertia .

Every matter have inertia , a property to remain in that very position until unless it is been forced on them to change their position .

Inertia is a property of matter that causes it to resist changes in velocity (speed and/or direction). According to Newton's first law of motion, an object with a given velocity maintains that velocity unless acted on by an external force. Inertia is the property of matter that makes this law hold true.

To learn more about inertia here

https://brainly.com/question/1358512?referrer=searchResults

#SPJ4

The x -component of the object's acceleration is 2 m/s².

Thus, we can conclude that the acceleration along x axis is 2 m/s².

Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: The forces in (Figure 1) are acting on a 1.0 kg object. What is ax, the x-component of the object's acceleration?

Learn more about the acceleration here:

brainly.com/question/460763

#SPJ1

Clouds lose their stability when the surrounding air temperature equals the rising air temperature.

When vapor condenses and produces the billowing columns, the ascending air, which is still warmer than the nearby air, rises. occurs when radiation even during night cools the Earth's surface as well as the air around.

As a result, the air parcel can increase until all of the latent heat has already been released as well as the "surplus" water vapor has condensed. Hence, the fundamental factor that prevents clouds from rising is the cessation of the production of heat transfer through condensation.

To know more about air.

https://brainly.com/question/19368011

#SPJ4

One similarity in the spectra of T dwarf stars and giant planets in our solar system is that their spectra show: "Indications of methane"

The solar system is made up of planets, moon, asteroids, comets, dust, and gas that revolve around the sun, which is our nearest star.

It consists of the giant planets Jupiter and Saturn, the ice giant Uranus and Neptune, and the rocky core planets Mercury, Venus, Earth, and Mars.

Some key points of solar system are-

To know more about Our Solar System, here

https://brainly.com/question/13979351

#SPJ4

The moment of inertia of the flywheel is 2.63 kg-[tex]m^{2}[/tex]

It is given that,

The maximum energy stored on the flywheel is given as

E=3.7MJ= 3.7×[tex]10^{6}[/tex] J

Angular velocity of the flywheel is 16000[tex]\frac{rev}{min}[/tex] = 1675.51[tex]\frac{rad}{sec}[/tex]

So to find the moment of inertia of the flywheel. The energy of a flywheel in rotational kinematics is given by :

E = [tex]\frac{1}{2}[/tex][tex]Iw^{2}[/tex]

By rearranging the equation:

I = [tex]\frac{2E}{w_{2} }[/tex]

I = 2.63 kg-[tex]m^{2}[/tex]

Thus the moment of inertia of the flywheel is 2.63 kg-[tex]m^{2}[/tex].

Learn more about moment of inertia here;

https://brainly.com/question/13449336

#SPJ4

Analog signals from sensors are changed to digital signals for processing by the computer through analog to digital converter circuit.

This is referred to as a path in which electric current flows and comprises of components such as resistor, capacitor etc.On the other hand, analog to digital converter circuit is responsible for the conversion of the analog signals to digital or binary forms and is read through the use of a microcontroller.

The digital signal is what is in vogue as of today due to its synergy with modern electric devices which are common in today's world which explains the need for the conversion to this type of signal.

This is therefore the reason why analog to digital converter circuit was chosen as the most appropriate choice in this type of scenario.

Read more about Analog to digital converter here https://brainly.com/question/24750760

#SPJ1

Dr. Albert gets a spark from the static in the door knob. He is not hurt. However, the electric current is high.

What is the static spark?

Sparks that are considered "static" have a massive momentary current and power (momentary like less than a millionth of a second.) However, the overall wattage of these sparks is exceedingly low. It's really too little to harm your muscles with heat (or even any warming a thermometer could detect.)

Negative and positive charges in an object must balance out for static electricity to occur. These charges may accumulate on an object's surface until they can be released or discharged. They can be discharged via a circuit, for example.

Learn more about static spark here:

https://brainly.com/question/4045527

#SPJ4

Steering is defined as intentionally directing someone to or away from specific areas based on the ethnicity of the person or the area.

There are generally three terms used in real estate and that are Steering, Redlining and Blockbusting.

Buyers are guided by steering according to their class.

Redlining mainly refers to the loan industry's discrimination against purchasers.

Blockbusting is the practice of persuading residents of a neighborhood to sell their home because the socioeconomics of the area are deteriorating.

Steering is the act of influencing a buyer's selection of a community based on one of the racial, ethnic, religious, gender, familial, or national origin protected categories listed in the Fair Housing Act.

Hence, Steering is defined as intentionally directing someone to or away from specific areas based on the ethnicity of the person or the area.

Learn more about Ethnicity here https://brainly.com/question/27129680

#SPJ1

Answer:

D.Linegraph

Explanation:

Linegraph could be easily converted into a pie chart

Answer:

bar graph

Explanation:

The force of friction acting on him is 122 N. The correct answer is option C

Friction is a force that opposes the motion of a static or a moving object.

Given that Barry slides across an icy pond. The coefficient of kinetic friction between his shoes and the ice is 0.15. If his mass is 83 kg

The given parameters are;

The normal reaction N on the body = mg

N = 83 x 9.8

N = 813.4 N

The Frictional force formula is  [tex]F_{r}[/tex] = μN

[tex]F_{r}[/tex] = 0.15 x 813.4

[tex]F_{r}[/tex] = 122.01 N

Therefore, the force of friction acting on him is 122 N approximately.

Learn more about Friction here: https://brainly.com/question/24338873

#SPJ1