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Novosadov [1.4K]
3 years ago
13

HELPPP. PHYSICAL SCIENCE MECHANICAL ENERGY LAB

Physics
1 answer:
Advocard [28]3 years ago
4 0

Answer:

https://www.teacherspayteachers.com/Browse/Search:mechanical%20energy%20labs

Explanation:

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ifif it takes 1-minute for 45 c of charge to pass a point in an electric circuit what is the current through the circuit?​
Rudiy27

Answer:

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Explanation:

5 0
2 years ago
A ball is released from rest at a height of 10 m and falls freely to the
ElenaW [278]

Answer:

The new kinetic energy would be 16 times greater than before.

Explanation:

Kinetic energy is found using this formula:

  • KE = 1/2mv²
  • where KE = kinetic energy (J), m = mass (kg), and v = velocity (m/s)

We can see that kinetic energy is directly proportional to the square of the velocity, meaning that if the speed was increased by 4 times, then the kinetic energy would get increased by a factor of 16.

The velocity just before the ball hits the ground can be found by the equation:

  • √(2gh)

Let's substitute h = 10 m and h = 40 m into this formula.

  • √(2g(10))
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We can see that the velocity increases by a factor of 4 (10 m → 40 m).

Therefore, this means that the kinetic energy would also be increased by a factor of (4)² = 16. Thus, the answer is D) The new kinetic energy would be 16 times greater than before.

6 0
3 years ago
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