3. A 50 kg sled is pulled at a constant speed by a 70 N force. a) What is the force of friction? How do you know?
b) What is the coefficient of friction?
c) How much force is required to pull the sled with a 20 kg box on it?

would be false hope this out

energy can be converted from one form to another, but it cannot be created or destroyed in ordinary chemical or physical means. do not understand what you are asking but hope this

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