jackieeee111 jackieeee111

01-09-2019
Physics

contestada

it is about work, energy.

it is about work energy class=

Respuesta :

Chenk13 Chenk13

01-09-2019

Answer:

a) 1m

b) (i) 1.11m (ii) energy is transformed into heat, noise, vibration etc.

c) no

Explanation:

a) conservation of energy

b) mgh * 0.9 = mg*1m => h= 1m/0.9

c) Mandy would add kinetic energy to the ball.

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