If a man weighs 100 N and is standing on the edge of a 35 m high cliff, what is his gravitational potential energy

c) up is the direction the magnetic force is acting on the charge.

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.