3 years ago

The particles in an object move in (many/ two directions)

Physics

1 answer:

pentagon [3]3 years ago

8 0

Answer:

They are negitive

Explanation:

Im pretty sure

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Would it be true that if you double the distance of an astronaut from a planet, the gravitational pull between them would be hal

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Answer:

Yes

Explanation:

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F = Gm1m2/r²

This is a general physical law derived from

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when distance is doubled the gravitational force will be reduced by quarter not half.

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3 years ago

Choose the correct statement regarding projectile motion in the absence of air resistance. Assume the object is at sea level mov

pishuonlain [190]

Answer:

Explanation:

The magnitude of the acceleration in the x direction is always zero: TRUE.

At the apex, in the y direction the velocity is zero and the accelration is positive. TRUE.

At the apex, in the x direction, the velocity is zero and the acceleration is zero. FALSE. The accelration is zero, but the velocity is the same it had when it was shot.

The magnitude of the velocity in the y direction is always constant. FALSE, it's subject to gravity and it's velocity varies as $v=v_0 - 9.81ms^{-2} t$

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