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Aleks04 [339]
2 years ago
14

HELP PLS HELP. WILL GIVE BRAINLIEST.

Physics
2 answers:
statuscvo [17]2 years ago
6 0

Let's see

According to law of conservation of linear momentum

  • PE=KE
  • KE=mgh
  • KE=0.5(9.8)(0.07)
  • KE=4.9(0.07)
  • KE=0.343J
  • KE=343mJ
Licemer1 [7]2 years ago
6 0

Answer:

<u>0.35 J</u>

Explanation:

This problem requires the Law of Conservation of Energy.

⇒ Potential energy = Kinetic Energy

⇒ mgh = 1/2mv²

⇒ 0.5 x 10 x 0.07 = KE

⇒ KE = 5 x 0.07

⇒ KE = <u>0.35 J</u>

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Troposphere

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The troposphere lies 10 km above the land surface and most weather phenomena and conditions (e. g. clouds, turbulence) occur there.

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If we take away a lot of energy from a liquid what phase will it change to ?
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Two identical loudspeakers 2.30 m apart are emitting sound waves into a room where the speed of sound is 340 m/s. Abby is standi
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Answer:

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The longest cave system in the world is the
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3 years ago
Read 2 more answers
Question 2
brilliants [131]

Answer:

1235.5J

Explanation:

Given parameters:

Mass of car  = 2413kg

Speed of car  = 32m/s

Unknown:

Amount of kinetic energy it has  = ?

Solution:

Kinetic energy is the energy due to the motion of a body;

     Kinetic energy  = \frac{1}{2} m v²  

m is the mass

v is the velocity

         Now insert the parameters;

     Kinetic energy  =  \frac{1}{2} x 2413 x 32²   = 1235.5J

7 0
3 years ago
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