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Ilia_Sergeevich [38]
3 years ago
15

Periodic motion can BEST be defined as motion

Physics
1 answer:
koban [17]3 years ago
8 0

Answer:

C

Explanation:

repeated in intervals of time

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students may elect to take the Knowledge Test online or at Drivers Office what additional test must be taken at the licensing of
Nutka1998 [239]
None I mean you have to take a drivers test but you will have to take the knowldege test twice

4 0
3 years ago
A ball with mass of 0.050 kg is dropped from a height of h1 = 1 .5 m. It collides with the floor, then bounces up to a height of
Iteru [2.4K]

Answer:

Explanation:

Impulse of reaction force of floor = change in momentum

Velocity of impact = √ 2gh₁

= √ 2 x 9.8 x 1.5 = 5.4 m /s.

velocity of rebound = √2gh₂

= √ 2x 9.8 x 1

= 4.427 m / s.

Initial momentum = .050 x 5.4 = .27 kg m/s

Final momentum = .05 x 4.427 = .22 kg.m/s

change in momentum = .27 - .22 = .05 kg m/s

Impulse = .05 kg m /s

Impulse = force x time

force = impulse / time

.05 / .015 = 3.33 N.

kinetic energy = 1/2 m v²

Initial kinetic energy = 1/2 x .05 x 5.4²

= 0.729 J

Final Kinetic Energy =1/2 x .05 x 4.427²

= 0.489 J

Change in Kinetic energy =0 .24 J

Lost kinetic energy is due to conversion of energy into sound light etc.

4 0
3 years ago
Use the drop-down menu to complete the statement. One difference between prokaryotic cells and eukaryotic cells is that a eukary
Ahat [919]

Answer:

Nucleus

Explanation: I did the quiz and got it right. Have an amazing day!

8 0
2 years ago
If C is the vector sum of A and B, C = A + B, What must be true if C = A + B?. What must be true if C = 0?.
dybincka [34]
A and B are equal vectors
7 0
3 years ago
What is net force?
kramer

Answer:

A. The sum of all the forces acting on an object.

3 0
3 years ago
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