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3 years ago

A bicycle is a compound machine, true or false

Physics

2 answers:

CaHeK987 [17]3 years ago

6 0

Answer:

True.

Explanation:

A bicycle is a compound machine.

JulsSmile [24]3 years ago

5 0

This is true. The break handles and brakes are levers and the seat adjustment (raise or lower) is a screw.

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WILL GIVE BRAINLIEST IF YOU GET THEM ALL RIGHT!!! In this problem you shine a light on a square and you have to tell me which co

asambeis [7]

White color light falls on white object , it will appears black because it absorbs all the colors of spectrum.

White color light falls on red object , it will appears red because it absorbs all the colors of spectrum except red.

White color light falls on blue object , it will appears blue because it absorbs all the colors of spectrum except blue.

Red color light falls on white object , it will appears Red.

Red color light falls on Red object , it will appears Red.

Red color light falls on Green object , it will appears black.

Green color light falls on white object , it will appears green.

Green color light falls on Red object , it will appears black.

Green color light falls on Green object , it will appears green.

Purple color light falls on white object , it will appears Purple.

Purple color light falls on Red object , it will appears black.

Purple color light falls on Blue object , it will appears black.

<h3>What is white light?</h3>

White light is the light from the sunlight incident on the surface to appear their color.

Thus, for each colored light and colored square, appearing color is find out.

Learn more about white light.

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8 0

2 years ago

Calculate the kinetic energy of a 10kg cart traveling at 4 m/s?

ycow [4]

Answer:

Explanation:

Ke = 1/2mv2 = 1/2.10.(4)2=5.16= 80 J

5 0

3 years ago

Read 2 more answers

In most circumstances, the normal force acting on an objectand

Lynna [10]

Answer:

Normal Force is usually perpendicular to the movement and static friction usually means that there is no movement.

Explanation:

The work donde by any force on an object is equal to the displacement of the object multiplied by the component of the force that is in the direction of the displacement.

Normal force is usually perpendicular to the movement, so there is no component in the direction of the displacement. This is why it is zero in most circumstances.

<em>Static</em> friction on the other hand, usually means that there is no movement at all (it's static). It means that there is no displacement between the object and ground (in most cases). If there is no displacement, there is no work.

4 0

3 years ago

A ball rolls off a desk at a speed of 3 m/s and lands .40 seconds later. How far from the base of the desk does the ball land?

Salsk061 [2.6K]

Is the velocity constant? Is there any friction?

3 meters per second

then after 40 seconds it must 3*40 = 120 meters

120 meters or 0.12 km if you will

7 0

3 years ago

How many nanoseconds does it take light to travel 3.50 ft in vacuum?

Fiesta28 [93]

Answer:3.56 nanosecond

In this case, you are asked the time and given the light distance(3.5ft)
To answer this question you would need to know the velocity of light. Speed of light is <span>299792458m/s. Then the calculation would be:

time= distance/speed
time= 3.5 ft / (</span>299792458m/s) x 0.3048 meter/ 1 ft= 3.56 $10^{-9}$ second or 3.56 nanosecond

6 0

3 years ago