Water's heat of fusion is 80 cal/g. its specific heat is 1.0 cal/g degrees celsius, and its heat of vaporization is 540 cal/g. a canister is filled with 330g of ice and 100g of liquid water, both at 0 degrees celsius. the canister is placed in an oven until all the water has boiled off and the canister is empty. how much energy in calories was absorbed?

While goofing off at the ice skating rink, a student takes off her shoes and places each of them on the ice. her friend, a hockey player, then shoots a hockey puck at each shoe. the first puck immediately comes to rest after it collides with the left shoe. the second puck rebounds after it collides with the right shoe. if each hockey puck has the same incoming speed, which shoe has greater speed after the collision? the right shoe. both shoes have the same speed. the left shoe.

Aregion of space in which a measurable gravitational force is indicated by the force exerted on a test mass is called

In which of the following is positive work done by a person on a suitcase