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frozen [14]
2 years ago
6

Water cycle

Physics
1 answer:
tatuchka [14]2 years ago
8 0
Type into google: " water cycle" and this comes up.... put it in to your own words. This is very easy.


the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration.
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What does the atomic number of an atom tell us?
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Answer:

The number of protons in the atom!

Explanation:

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aleksley [76]

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4 0
2 years ago
A 75 kg soccer player jumps vertically upwards and heads the 0.45 kg ball as it is descending vertically with a speed of 24 m/s.
Vikentia [17]

Answer:

31.66 m/s

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Let the final speed of player is V and the ball is v.

use conservation of momentum

Momentum before collision = momentum after collision

75 x 4 - 0.45 x 24 = 75 x V + 0.45 x v

289.2 = 75 V + 0.45 v    .... (1)

As the collision is perfectly elastic, coefficient of restitution,e = 1

So, e=\frac{v_{1}-v_{2}}{u_{2}-u_{1}}

V - v = u - U

V - v = -24 - 4 = - 28

V = v - 28, put this value in equation (1), we get

289.2 = 75 (v - 28) + 045 v

289.2 = 75 v - 2100 + 0.45 v

2389.2 = 75.45 v

v = 31.66 m/s

Thus, the velocity of ball after collision is 31.66 m/.

7 0
3 years ago
If the solid, liquid, and gas have the same mass of 24 g, then what would the volume of the solid, liquid, or gas be greater? Ex
nikitadnepr [17]
I think it would be gas.The gas isn’t tightly compacted together and liquid can move but it’s still at a height and a solid is short
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