During 5th period Dylan was a beast. She resisted the forces applied by 18 other students in her class all at once. Her 18 classmates tried to knock Dylan over, each applying a force of 19 N, and she still
didn’t budge. How much force was Dylan pushing back with, and how many people would it take to
push Dylan if she can withstand a force of 350 N?

Which law represents the thermodynamic statement of the conservation of energy of a system? a. the fourth law b. the first law c. the second law d. the third law

An ice-making machine inside a refrigerator operates in a carnot cycle. it takes heat from liquid water at 0.0 degrees celsius and rejects heat to a room at a temperature of 19.2 degrees celsius. suppose that liquid water with a mass of 76.3kg at 0.0 degrees celsius is converted to ice at the same temperature. take the heat of fusion for water to be l_f = 3.34*10^5 j/kg.how much energy e must be supplied to the device? express your answer in joules.

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?