Ec₁=mv₁²/2=450*26²/2=225*676=152100 J
Ec₂=mv₂²/2=450*30²/2=225*900=202500 J
ΔEc=Ec₂-Ec₁=202500-152100=50.4 kJ
Answer:
Explanation:
The two examples of contact forces are frictional force and applied force. The two examples of noncontact forces are gravitational force and magnetic force.
Answer: Option (B) is the correct answer.
Explanation:
It is advised that while conducting an experiment in a laboratory, always perform it under the supervision of your teacher.
When Hiro accidentally touches the liquid then he should immediately tell his teacher about it so that timely precaution can be taken to avoid any damage or side effect. Also, Hiro should rinse his hand in the sink because it will neutralize or decrease the effect of spilled liquid on his skin.
Thus, we can conclude that he should tell his teacher about the spill and rinse his hand in the sink.
A. The kinetic energy in the waves has enough mechanical energy to knock over the sand castle
B.Plants use potential energy from the sun in order to grow
C.You use the potential energy in your breakfast, stored as glucose, to have energy for the school day
D. Your potential energy from height transfers to mechanical energy as you drop the plate, and the energy transfer breaks the plat
E.There is potential electrical energy from the outlet that can be converted to mechanical energy to power your hair dryer
Think of energy as the ability to do work, and then just pick a energy type that fits the situation to come up with an explanation.