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Kisachek [45]
2 years ago
7

How much time is needed to push a 5,000 N car 50 meters if you are using a machine with a power of 4,500 W?

Physics
1 answer:
Dafna1 [17]2 years ago
8 0

Answer:

55.56

Explanation:

5000N * 50 = 250000/4500= 55.55555555 or 55.56

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If the mass of both objects are doubled while the
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Answer:

The force becomes 16 times what it is now.

Explanation:

The formula for gravitational force is

F = G * m1 * m2 / r^2

When you do what you have described, you are setting a stage that not even the USS Enterprise (Star Trek) can get out of. The increase is huge.

If you double m1 and m2 and don't do anything to r, you've already increased the force by 4 times. (2m1 * 2m2 = 4 * m1 * m2)

But you are not finished. If you 1/2 the distance, you are again increasing the Force by 4 times. 1 / (2r) ^2 = 1/ 4* r^2

Because this is in the denominator, the 1/4 is going to flip to the numerator.

So the total increase is going to be 4 * (4 * m1 * m2) = 16 * m1 * m2.

Think about what that means. If you were out golfing, your drives would be roughly 1/16 times as far as they are now. Also you would be lugging around 16 times your weight around the golf course. My feeling is that you would never finish 5 holes at that rate.

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2 years ago
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Answer:

The direction of defliection of the site to the left I think ..

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You throw a ball vertically upward, and as it leaves your hand, its speed is 10.0 m/s.
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he graph shows the distance (x) traveled by an aircraft traveling at constant velocity in corresponding time intervals (t). What
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