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Arlecino [84]
3 years ago
14

15 POINTS!

Physics
2 answers:
photoshop1234 [79]3 years ago
8 0
The first law of inertia says that an object’s speed will not change unless something makes it change.


Newton's First Law of Motion

Place the hard boiled egg on its side and spin it. Put your finger on it gently while it is still spinning in order to stop it. Remove your finger when it stops.

Place the raw egg on its side and spin it. Place your finger gently on the egg until it stops. Once you remove your finger, the egg should start to spin again. The liquid inside the egg has not stopped so it will continue to spin until enough force is applied.


The second law: the strength of the force equals the mass of the object times the resulting acceleration.

Newton's Second Law of Motion

Drop a rock or marble and a wadded-up piece of paper at the same time. They fall at the same rate of speed, but the rock's mass is greater so it hits with greater force.


Finally, the third law says that for every action there is a reaction. 

Newton's Third Law of Motion

Pull one ball or swing back and let it go.

It will swing into the other balls making the ball at the other end swing.

adelina 88 [10]3 years ago
6 0
1. The Egg Drop.

2. The Car down a ramp.

3. Maybe an Airplane race with things on it.
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A natural resource that is in limited supply is known as a _________________.
goblinko [34]

Answer:

Limited Resources

6 0
3 years ago
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Cathode-ray tubes produce images on the principle of induced emf. true or false?
yan [13]
The appropriate response is false. Cathode-beam ray does not deliver pictures on the guideline of instigated emf. The cathode-ray is a high-vacuum tube in which cathode beams deliver an iridescent picture on a fluorescent screen, utilized mostly in TVs and workstations.
3 0
3 years ago
The normal force equals the magnitude of the gravitational force as a roller coaster car crosses the top of a 58-m-diameter loop
dedylja [7]

Answer:

16.87 m/s

Explanation:

To find the speed of the car at the top, when the normal force is equal the gravitational force, we just need to equate both forces:

N = P

m*a_c = mg

a_c is the centripetal acceleration in the loop:

a_c = v^2/r

So we have that:

mv^2/r = mg

v^2/r = g

v^2 = gr

v = \sqrt{gr}

So, using the gravity = 9.81 m/s^2 and the radius = 29 meters, we have:

v = \sqrt{9.81 * 29}

v = \sqrt{284.49} = 16.87\ m/s

The speed of the car is 16.87 m/s at the top.

5 0
3 years ago
How do make friends and other people like being around u also im lonely
nadya68 [22]
A good way to do that is to talk abt anything, TALK MORE NOT LESS:)
6 0
3 years ago
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Why is it that when riding in a car, you don't feel like you're moving?
UkoKoshka [18]

This may shock you:

We NEVER feel speed, velocity, or motion, as long as it's constant.

We only feel CHANGES in speed, velocity, or motion.

That means speeding up, slowing down, or changing direction.

As long as we're moving in a straight line at a constant speed, we don't feel anything.

6 0
3 years ago
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