3 years ago

If an object is not accelerating, it can exist in what 2 other states of motion?

Physics

1 answer:

dezoksy [38]3 years ago

7 0

Answer:

Friction is a force that acts in a direction opposite to the motion of the moving object.

Friction will cause a moving object to slow down and finally stop.

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A spring balance attempts to drag an object across a table, but the object does not move because of the force of friction acting

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3 years ago

As temperature increases, what happens to the density of ocean water? A. changes unpredictably B. decreases C. does not change D

Lelu [443]

As the temperature of water increases, the density of water will decrease.

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3 years ago

When an average force F is exerted over a certain distance on a shopping cart of mass m, its kinetic energy increases by 12mv2.

VMariaS [17]

Answer:

A) $d=\dfrac{1}{2F}mv^2$

B) $\Delta KE'=2\times \dfrac{1}{2}mv^2$

Explanation:

Given that

Force = F

Increase in Kinetic energy = $\dfrac{1}{2}mv^2$

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we know that

Work done by all the forces =change in the kinetic energy

Lets distance = d

We know work done by force F

W= F .d

F.d=ΔKE

$F.d=\dfrac{1}{2}mv^2$

$d=\dfrac{1}{2F}mv^2$

If the force become twice

F' = 2 F

F'.d=ΔKE'

2 F .d = ΔKE' ( F.d =Δ KE)

2ΔKE = ΔKE'

$\Delta KE'=2\times \dfrac{1}{2}mv^2$

Therefore the final kinetic energy will become the twice if the force become twice.

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3 years ago

Avogadro‘s number was calculated by determining The number of atoms in

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Answer:

12 grams of the isotope carbon-12.

Explanation:

hope it helps you and give me a brainliest

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2 years ago

Radio waves travel at 3.00 · 108 m/s. Calculate the wavelength of a radio wave of frequency 600 kHz. (6.00 · 105 Hz).

frutty [35]

Hmm, I got that the wavelength is 500 meters.

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3 years ago

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