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Nostrana [21]
3 years ago
5

Imagine a bouncing ball that does not lose any energy

Physics
1 answer:
OleMash [197]3 years ago
4 0
It would never stop bouncing.
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Which is the force that results from use of a machine?
Goshia [24]

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D. Output force

Explanation:

The input force is the effort used to run the machine and this results in an output force.

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2 years ago
Identify the characteristics of protists. Check all that apply.
romanna [79]

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There are no examples

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3 1
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What is the length of the X component of the vector plotted below
dlinn [17]

Answer:

5

Explanation:

If you straighten out the line, it touches the 5, which makes the length 5

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3 years ago
When a medium is disturbed by a wave, does it move with the wave?
DerKrebs [107]

Answer:

As they vibrate, they pass the energy of the disturbance to the particles next to them, which pass the energy to the particles next to them, and so on. Particles of the medium don't actually travel along with the wave. Only the energy of the wave travels through the medium

8 0
3 years ago
An object starts from rest and has an acceleration given by a = 3.00 t^2 – 4.20 t. Determine how far the object is from its star
Korolek [52]

Answer:

38.7 units

Explanation:

a = 3.00 t² – 4.20 t

Integrate to find velocity as a function of time.

v = ∫ a dt

v = ∫ (3.00 t² – 4.20 t) dt

v = 1.00 t³ – 2.10 t² + C

The object starts at rest, so at t = 0, v = 0.

0 = 1.00 (0)³ – 2.10 (0)² + C

0 = C

v = 1.00 t³ – 2.10 t²

Integrate to get position as a function of time.

x = ∫ v dt

x = ∫ (1.00 t³ – 2.10 t²) dt

x = 0.250 t⁴ – 0.700 t³ + C

Find the difference in positions between t = 4.50 and t = 0.

Δx = [0.250 (4.50)⁴ – 0.700 (4.50)³ + C] – [0.250 (0)⁴ – 0.700 (0)³ + C]

Δx = 0.250 (4.50)⁴ – 0.700 (4.50)³

Δx = 38.7

The object moves 38.7 units.

7 0
3 years ago
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