What happens to light when it passes from a gas to a liquid or solid material?

A 400-kg box is lifted vertically upward with constant velocity by means of two cables pulling at 40. 0° on either side of the v

amm1812

Answer:

2558 N.

Explanation:Each rope takes half, so the vertical component of the force on each rope is half of this, or 1960 N.. But they are pulling at a 40 degree angle, so if t is the tension then t*cos(40) = 1960. This gives t = 2558 N.

7 0

2 years ago

A student placed one hundred dominoes upright in a row. He knocked over the first domino and the rest all fell over; one after a

Nezavi [6.7K]

Answer:

newtons first law ; an object will stay at rest until a force is added onto it. Since the student knocked over the first domino that force the student added continues on until the row ends

Explanation:

6 0

2 years ago

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Who does the warden think found the tube? in holes

agasfer [191]

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3 0

2 years ago

The resistance or stubbernes of an object is called

Anna71 [15]

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