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olchik [2.2K]
3 years ago
9

Lee pushes horizontal with a force of 79 N on a 34Kg mass for 10 m across a floor. Calculate the amount of work lee did

Physics
1 answer:
Furkat [3]3 years ago
3 0
First you have to know the formula for work which is force times (x) distance which is equal to Newtons times (x) mass answer is in joules which is tge unit
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8 0
2 years ago
High and low tides are the regular pattern of rising and sinking ocean-water levels. They are caused when the sun's gravity and
MrRa [10]

Answer:

D. The moon is closer to Earth than the sun.

Explanation:

Tides are formed as a consequence of the differentiation of gravity due to the moon across to the Earth sphere.

Since gravity variate with the distance:

   

F = G\frac{m1\cdot m2}{r^{2}}  (1)                            

Where m1 and m2 are the masses of the two objects that are interacting and r is the distance

For example, see the image below, point A is closer to the moon than point b and at the same time the center of mass of the Earth will feel more attracted to the moon than point B. Therefore, that creates a tidal bulge in point A and point B.

The Sun tidal force contributes to the tidal force of the moon over the earth making high tides higher and low tides lower.  

However, even when the sun is more massive than the moon, it is farther away from the Earth than the moon. So, it is clear by equation 1 that the moon's gravity has a greater effect on Earth's oceans than the sun's gravity.         

8 0
3 years ago
A 7 kg suitcase and a 12 kg suitcase are dropped from the same second story window at the same time. If there is no wind resista
Natali5045456 [20]

Explanation:

the correct answer is C.

if there is no wind resistance; in vaccum both will hit the ground at the same time.

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4 0
2 years ago
The newton is defined as the:
Orlov [11]

Answer:

b.

Explanation:

because of fhe speed an object when under the influence of earth gravitational field

tama po yan .

3 0
3 years ago
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a ball is dropped and falls with an acceleration of 9.8m/s^2 downward. it hits the ground with a velocity of 49m/s downward. how
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The answer below...........

8 0
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