Respuesta :

18maherc
ΔE = Ef - Ei = (Uf + Kf) - (Ui + Ki) = (mgh + 0) - (mgh +0)
ΔE = mghf - mghi = 1(9.8)(1.5) - 1(9.8)(2) = -4.9 J
The total energy of the system decreases by 4.9 J so that must mean that 4.9 J is converted into other forms of energy and in this case it is heat.
asuwafohjames

The amount of energy converted to heat is 4.9 J.

What is energy?

Energy is the ability or the capacity to do work.

To calculate the amount of energy converted to heat, we use the formula below.

Formula:

  • E' = mg(H-h)............... Equation 1

Where:

  • E' =  Amount of energy converted to heat
  • m = Mass of the ball
  • g = Acceleration due to gravity
  • H = Height of the ball before it was dropped
  • h = Height of the ball after rebounds

From the question,

Given:

  • m = 1 kg
  • g = 9.8 m/s²
  • H = 2 m
  • h = 1.5 m

Substitute these values into equation 1

  • E' = 1×9.8×(2-1.5)
  • E' = 9.8×0.5
  • E' = 4.9 J

Hence, the amount of energy converted to heat is 4.9 J.

Learn more about energy here: https://brainly.com/question/13881533

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