<span>temperature increases and molecular motion increases while shape becomes less defined.
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Answer:
Explanation:
F = Force on the skier = 60 N
= Coefficient of friction = 0.05
w = Weight of skier
Force is given by
Weight of the skier on which the force is being applied is
.
Answer:
933. 3kg
Explanation:
We are given that
Mass,m=2000 kg
Initial speed,u=4.4 m/s
We have to find the maximum mass of grain if the speed of loaded freight car must not go below 3.0 m/s.
Final speed,v=3 m/s
By conservation of momentum
Initial momentum=Final momentum

Substitute the values



Mass of freight loaded car=2933.3 kg
Mass of grains=2933.3-2000=933.3 kg
Hence, the maximum mass of grains that it can accept=933.3 kg
Answer:
C
Explanation:
Energy is neither created or destroyed, but it can change forms...