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marusya05 [52]
2 years ago
6

The primary source of most of the moisture for the earths atmosphere is

Physics
1 answer:
SpyIntel [72]2 years ago
6 0
I think is ocean but I'm not sure
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Calculate the kinetic energy of a dog,
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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
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This is True

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3 years ago
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1. A piece of metal weighs 50.0 N in air, 36.0 N in water, and 41.0 N in an unknown
denis23 [38]

Answer:

a) 3.37 x 10^{3} kg/m^3

b) 6.42kg/m^{3}

Explanation:

a) Firstly we would calculate the volume of the metal using it`s weight in air and water , after finding the weight we would find the density .

Weight of metal in air = 50N = mg implies the mass of metal is 5kg.

Now the difference of weight of the metal in air and water = upthrust acting on it = volume (metal) p (liquid) g = V (1000)(10) = 14N. So volume of metal piece = 14 x 10^{-4}  kg/m^{3}. So density of metal = mass of metal / volume of metal = 5 / 14 x 10^{-4}  kg/m^{3} = 3.37 x 10^{3} kg/m^3

b) Water exerts a buoyant force to the metal which is 50−36 = 14N, which equals the weight of water displaced. The mass of water displaced is 14/10 = 1.4kg Since the density of water is 1kg/L, the volume displaced is 1.4L. Hence, we end up with 3.57kg/l. Moreover, the unknown liquid exerts a buoyant force of 9N. So the density of this liquid is 6.42kg/m^{3}

3 0
3 years ago
What happens when you mix water and baking soda
AnnZ [28]

Answer:

it explodes

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4 0
3 years ago
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how many revolutions are completed by a top spinning with a constant angular velocity of 3pi radians during a 20 sec time interv
patriot [66]

Answer:

  30

Explanation:

Assuming the velocity is 3π radians <em>per second</em>, the top will spin through an angle of ...

  (3π radians/s)(20 s) = 60π radians

Since each revolution is 2π radians, that is ...

  (60π radians)/(2π radians/revolution) = 30 revolutions

7 0
3 years ago
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