3 years ago

If a much heavier stone rolled off the same cliff would it hit the ground more quickly

1 answer:

5 0

Heavier objects do not fall faster than lighter objects when they are dropped from a certain height IF there is no resistance from the air. So, if you were in a vacuum, the two things would fall at the same rate.

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A cord of mass 0.65 kg is stretched between two supports 8.0 m apart. If the tension in the cord is 120 N, how long will it take

DedPeter [7]

The time taken by the pulse to travel from one support to the other is 0.208 s.

<h3>Given:</h3>

The mass of the cord is m = 0.65 kg.

The distance between the supports is, d = 8.0 m.

The tension in the cord is T = 120 N.

The time taken by the pulse to travel from one support to the other is given as,

$v=\frac{d}{t}$

$t=\frac{d}{v}$

Here, v is the linear velocity of a pulse. Its value is,

$v=\sqrt{\frac{T d }{m} }$

$v=\sqrt{\frac{120 * 8}{0.65} }$

$v= 38.43 m/s$

Then,

$t=\frac{8}{38.43}$

$t=0.208 s$

Thus, the time taken by the pulse to travel from one support to the other is 0.208 s.

Learn more about tension here:

brainly.com/question/24994188

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2 years ago

The following is an example of a physical or a chemical change?? Alex made a beautiful origami swan out of a blue sheet of paper

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Pretty sure physical, a chemical change would be something of the time of acid rain, meanwhile physical changes are the ones that affect the form not the actual chemical composition

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4 years ago

a beach ball is left in the bed of a pickup truck. Describe what happens to the ball when the truck accelerates forward

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When the truck accelerates forward the ball will shift to the back of the bed of the truck because of inertia

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3 years ago

When an atom that has no charge loses two electrons, it becomes a

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Answer:

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due to the fact it loses electrons there is 2 more protons than electrons

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Many species cool themselves by sweating, because as the sweat evaporates, heat is transferred to the surroundings. A human exer

max2010maxim [7]

Answer:

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Hope this helps:)

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3 years ago