A car engine changes chemical energy into what types of energy? A. Mechanical and thermal B. Thermal and light C. Mechanical and nuclear D. Electromagnetic and mechanical A car engine changes chemical energy into what types of energy ? A. Mechanical and thermal B. Thermal and light C. Mechanical and nuclear D. Electromagnetic and mechanical​

Answer:

No!!

Explanation:  I think the government shouldn't get involved with limiting population!! i think that as long as you can care and supply your family it is your choice how larger your family is!

Answer: A car heading north collides at an intersection with a truck of the same mass as the car heading east. If they lock together and travel at 28 m/s at 46° north of east just after the collision, then the car initially traveling with a velocity of 40.28m/s.

Explanation: To find the answer, we need to know more about the Perfectly inelastic collision.

               \(m_1v_1+0=(m_1+m_2)v_2\\\)

               \(mv_1=(m+m)28 sin46\\v_1=2*28*0.719=40.28 m/s\)

Thus, we can conclude that, the initial velocity of the car will be 40.28m/s.

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Answer:

neutron.

Explanation:

subatomic particles include,

neutron.

proton.

electron.

hope it helps. :)

Answer:

the correct answer is D

Explanation:

Average speed is determined by dividing the whole distance you travelled by the total time, whereas average velocity is determined by your displacement line connecting your starting location and finishing point.

To calculate the average velocity based on the displacement for the entire period taken. The displacement, which is the smallest distance between the initial and final points, is shown as the dash between the final point here and the dash between the starting point here.

And by using the bye to Chris rule, we can obtain this or dash. The route will therefore be 30 square plus 40 square, which equals 50 kilometres.

Therefore, 50 km divided by the total time represents the average speed in terms of magnitude. It has been an hour. And as a result, we are given the average velocity's magnitude as 50 km/h.

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The final velocity is 14.14 m/s.

The velocity of the of the ball can be calculated by the kinetic energy of the wall and the mass is also given.

The kinetic energy is calculated by mass and velocity but since the velocity is not given so we will first find the kinetic energy. In this case, the kinetic energy will be equal to potential energy.

Given,

Mass = 10 kg

Height = 10 m

g = 10

Potential Energy = PE = mgh

Potential Energy = 10*10*10 = 1000 J

Initial Potential Energy = Final Kinetic Energy

So the kinetic energy just before the ball hits the ground is 1000 J.

Kinetic Energy = 1000 J

Kinetic Energy = (1/2) mv²

1000 = 1/2*10*v²

2000 = 10v²

v = √(2000/10)

v = 14.14 m/s

Therefore the velocity of the ball before it reaches the ground is 14.14 m/s,

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A. The amount of water. 50/50

The distance from Sun to Earth varies each year due to the difference in orbits. It is due to Tidal stress.

Earth is pulled along in the Sun's orbit around the galaxy. The motion of the sun causes a slight distortion in the planets' orbits as Earth travels around our star. Earth’s orbit is therefore elliptical, or somewhat egg-shaped. The Moon experiences the same effects due to Earth's motion and the Moon's gravitational pull. It is known as tidal stress.

Earth's orbit is slightly elliptical because it is not a perfect circle. And as a result, Earth is either moving from the perihelion point to the aphelion point (constantly getting closer to the Sun) or from the aphelion point to the perihelion point (constantly getting farther from the Sun).

Thus, the above phenomenon can be explained through tidal stress.

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The expression for the area of the region of the loop in the magnetic field as a function of time t, in terms of the variables s, t, and v, is:
Area(t) = s × (v × t)

To write the expression for the area of the region of the loop in the magnetic field as a function of time t, we need to consider the variables s, t, and v.
The area of the region of the loop at a given time can be found by multiplying the length of one side (s) by the length of the other side, which is the distance covered by the loop moving at a constant speed (v) for a certain time (t).
1. Calculate the distance covered by the loop as it moves through the magnetic field: distance = speed × time, which is d = v × t.
2. Find the area of the region of the loop by multiplying the length of one side (s) by the distance covered (d): area = s × d.

So, the expression for the area of the region of the loop in the magnetic field as a function of time t, in terms of the variables s, t, and v, is:
Area(t) = s × (v × t)

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1. Increase alpha.

2. Conduct a one-tailed test.

3. Increase the effect size.

4. Decrease random error.

5. Increase sample size.

Answer:

Should be a rotation, but if that isn't on there it might be a revolution.

Explanation:

I could be wrong but im about 90 percent sure this is right

Hey there mate ;)!

Option B "Large face with painted white" is your answer.

• This is because, as more is the area of surface, more is the internal heat released. Therefore, it will have less heat.

• To make the best out of it, the white paint helps in reflecting back the heat rays. As there are more white, more heat rays are reflected back, thus, cooling the container very fast.

In other containers, some are black and small. This means that the container will heat up slowly and slowly, due to the presence of black colour.

By Benjemin ☺️

The net torque on each wheel of the bicycle is -0.27 Nm.It is important to note that the negative sign indicates that the torque is in the opposite direction to the motion of the wheel.

To find the net torque on each wheel of a bicycle slowing down with an angular acceleration of -15 rad/s², we can use the formula for torque:

τ = Iα

Where τ is the net torque, I is the moment of inertia, and α is the angular acceleration.

We are given the mass and radius of each wheel as 0.4 kg and 0.3 m, respectively, and the angular acceleration as -15 rad/s². The moment of inertia of a solid cylinder is:

I = 1/2 mr²

Substituting the given values, we get:

I = 1/2 × 0.4 kg × (0.3 m)² = 0.018 kg m²

We can now calculate the net torque using the formula:

τ = Iα

Substituting the given values, we get:

τ = 0.018 kg m² × (-15 rad/s²) = -0.27 Nm.

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Explanation:

While the unitarios fought for a centralized government, located in the city of Buenos Aires, the federales sought political decentralization so that the autonomy of the provinces within the nation would be respected.

The potential energy of the car when it let go is 20,000 J.

The speed of the car at the bottom of the ramp is 20 m/s.

The given parameters;

The potential energy of the car is calculated as follows;

P.E = mgh

P.E = 100 x 10 x 20

P.E = 20,000 J

The speed of the car at the bottom of the ramp is calculated as follows;

\(K.E = P.E\\\\\frac{1}{2} mv^2 = mgh\\\\v^2 = 2gh\\\\v = \sqrt{2gh} \\\\v = \sqrt{2 \times 10 \times 20} \\\\v = 20 \ m/s\)

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Answer:

a lever that is what is used

The presence of dark lines in the solar spectrum, known as Fraunhofer lines, indicates that certain wavelengths of light are absorbed by elements present in the Sun's outer layer or in the Earth's atmosphere.

These lines are named after the German physicist Joseph von Fraunhofer, who first observed them in the early 19th century. These absorption lines help to identify the Sun's chemical composition and to understand its physical properties.

By studying Fraunhofer lines, scientists can determine which elements are present in the Sun and other stars, since each element has a unique spectral fingerprint.

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Answer:

Electricity is measured in units of power called Watts,

hope this helps

have a good day :)

Explanation:

The bag's velocity when a bag is dropped from a hovering helicopter is 15.68m/s

Its initial velocity is zero. In a free-falling body, the value of the final velocity is obtained through the equation

                                           Vf =u + gt

u = o ( because the bag is dropped, so it falls starting from rest)

Vf = gt

u is initial velocity

Vf is final velocity

t is time

where g is the acceleration due to gravity, 9.8 m/s².

using above values we get

 Vf = (9.8 m/s²)(1.6s)

= 15.68m/s

The bag's velocity when a bag is dropped from a hovering helicopter is 15.68m/s

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The correct choices regarding the acceleration are: 1. The acceleration is a maximum when the object is instantaneously at rest, 4. The acceleration is a maximum when the displacement of the object is zero.

In simple harmonic motion (SHM), the acceleration of the object is directly related to its displacement and is given by the equation a = -ω²x, where a is the acceleration, ω is the angular frequency, and x is the displacement.

1. The acceleration is a maximum when the object is instantaneously at rest:

When the object is at the extreme points of its motion (maximum displacement), it momentarily comes to rest before reversing its direction. At these points, the velocity is zero, and therefore the acceleration is at its maximum magnitude.

2. The acceleration is a maximum when the displacement of the object is zero:

At the equilibrium position (where the object crosses the mean position), the displacement is zero. Substituting x = 0 into the acceleration equation, we find that the acceleration is also zero.

Therefore, the acceleration is a maximum when the object is instantaneously at rest and when the displacement of the object is zero.

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the complete question is:

An object is moving in a straightforward harmonic manner. What is accurate regarding the object's acceleration? Pick every option that fits.

1. The object is instantaneously at rest when the acceleration is at its maximum.

2. The acceleration is at its highest when the object's speed is at its highest.

3. When an object is moving at its fastest, there is no acceleration.

4-When the object's displacement is zero, the acceleration is at its highest.

5-The acceleration is greatest when the object's displacement is greatest.

Answer:

Explanation:

Distance = speed *time

as per the question, THE average speed is 40Km/h

time1 = S/40,time2 = S/40

now , time1 +time2

s/40+s/40

The time taken for Arun's journey can be calculated by dividing the distance to his school by the average speed. Assuming the school is 20km away, at an average speed of 40km/h, it would take Arun 30 minutes to reach school.

The question involves applying the concept of speed as being the distance traveled divided by the time it takes to get to the destination. To determine how long Arun's journey takes taking into account the average speed of 40km/h, we need to know the distance to school. However, if we assume the distance as 'd' kilometers, the time taken can be found by the formula: time = distance/speed

Let's say, for example, Arun’s school is 20 kilometers away. Using the formula time = distance/speed, we substitute the distance and speed into the formula: time = 20km / 40km/h = 0.5 hours. To convert this time into minutes, we multiply by 60 (since there are 60 minutes in an hour), which gives us 30 minutes. Therefore, if Arun’s school was 20 kilometers away, his journey would take him 30 minutes.

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Answer:

Waves are caused by wind, or are created by the friction between wind and surface water

Explanation:

Answer:

Pepsi- 660 Calories

Hot Dog- 3 Calories

Popcorn- 210 Calories

Total Calories in all 3 - 873 Calories

Answer:

100 L

Explanation:

10 dL =  1 L

Answer:

it should be known that equivalent resistance of resistors in series is determined by adding all the resistance

R=R1+R2+R3.... +Rn

R=4+8+12

R=24ohms

B. V=IR

I=V/R

I=24/24

I=1A

C. since the resistors are connected in series,they all have the same current

Work done to lift the stone of mass 5.9 kg is 28.91 J.

The work done through pressure is made of the displacement and the component of the carried-out force of the object inside the direction of displacement. whilst we push a block with a few pressure ' F ' the body movements with a few accelerations, paintings are carried out. paintings executed is written as W = F.

The paintings executed by using pressure are defined to be manufactured from the aspect of the force in the path of the displacement and the significance of this displacement. formula. work can be calculated by multiplying pressure and Distance within the course of force as follows. W = F × d.

Work is achieved whenever a pressure actions something over a distance. you can calculate the strength transferred, or work carried out, by multiplying the pressure via the space moved in the route of the pressure.

Calculation:-

mass = 5.9

g = 9.8 m/s

f = 0.5 m

work done = mgh

                   = 5.9 × 9.8 × 0.5 J

                  = 28.91 J

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Answer:

hello

Explanation:

Answer:B, They preform experiments.

Explanation:

your welcome :)

The correct answer is D) The light must be coherent to obtain an observable double-slit interference pattern.

To observe a double-slit interference pattern, certain conditions must be met. Let's evaluate each option:

A. The light must be incident normally on the slit:

This condition is not necessary for observing a double-slit interference pattern. The interference pattern can still be observed even if the light is incident at an angle.

B. The light must be monochromatic:

Monochromatic light, consisting of a single wavelength, is crucial for obtaining a clear and well-defined interference pattern. If the light contains multiple wavelengths, the pattern may become blurred or distorted.

C. The light must be polarized:

Polarization is not a necessary condition for observing a double-slit interference pattern. Interference patterns can be observed with both polarized and unpolarized light.

D. The light must be coherent:

Coherence is a fundamental requirement for observing a double-slit interference pattern. Coherent light waves maintain a constant phase relationship, allowing for constructive and destructive interference. Without coherence, the interference pattern would not be visible.

To obtain an observable double-slit interference pattern, the light must be coherent. Coherence ensures a consistent phase relationship between the light waves, allowing for constructive and destructive interference. The other conditions, such as normal incidence, monochromaticity, and polarization, are not necessary for observing the interference pattern.

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Mechanical energy can be described as a sum of kinetic and potential energy in an object that is used to do work

In the field of physics, we can describe mechanical energy that is either stored in an object at the time of rest or the energy of an object that is in a particular motion. As kinetic energy is the motion or movement energy and potential energy is the stored energy at rest, hence mechanical energy is the sum of both these energies.

In other words, we can also describe mechanical energy as an energy that is contained in a particular object that allows it to perform a specific work. It depends on the mechanical energy of an object to determine the amount of work it can do.

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Answer:

mechanical energy or A

Explanation:

Hope this helps