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max2010maxim [7]
3 years ago
5

What is the velocity (m/s) after 5 seconds of fall

Physics
1 answer:
gregori [183]3 years ago
3 0
5 second fall starting at 0 m/s
ball strikes ground at a speed = 49 meters per second.
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If a lever has an input arm of 80 cm and an output arm of 20 cm, what is its ideal mechanical advantage?
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16

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2 years ago
A cubical wooden box floating on water rises 1cm when 400 gm of stone is
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Answer:

Explanation:

I'm not  sure you can do this without just a bit more information. I can tell you what the mass of the water is when the rocks are removed. When we know that, we know the volume of the water that was displaced. whether or not this is enough information to determine the volume of the box, I'm not sure.

400 grams raises the box 1 cm.

The density of water = 1 gm / cm^3

400 grams of water = 400 mL or 400 cm^3

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The volume a slice from the square prism is B*h

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If the base is 400 cm^2 then each side is

s^2 = 400

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3 years ago
1. Give three examples, from the lab, where potential energy was converted to kinetic energy: ​
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