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ratelena [41]
3 years ago
11

PHYSICS HW HELP PLS

Physics
2 answers:
nasty-shy [4]3 years ago
7 0
Violet CAN be seen, but ultraviolet CANNOT be seen.

Red CAN be seen, but infrared CANNOT be seen.
lana [24]3 years ago
3 0
Violet cannot , ultraviolet can
red can, infrared cannot
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A cubical wooden box floating on water rises 1cm when 400 gm of stone is
Ksivusya [100]

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

The volume of the displaced water = 400 cm^3

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

B = 400 cm^2

h = 1 cm

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

s^2 = 400

sqrt(s^2)= sqrt(400)

s = 20

The volume of the box is 20^3 = 8000 cm^3

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What is thermodynamics?
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As a gas or liquid increases in heat, what direction will it naturally move?
miss Akunina [59]

Hello!

Answer:

When a gas gets hot it should go up because of the pressure.

Explanation:

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