2. 290 grams of water is to be heated from 24.0% to 100.0°C to make a cup of tem, how much heat must be added? The specific heat of water is 4.18 J/g•C

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?

What are two different ways you could find the value of a? explain these methods.

Two carts, one of mass 2m and one of mass m, approach each other with the same speed, v. when the carts collide, they hook together. assume that positive momentum is to the right. which graph best represents the momentum of both carts over time, before and after the collision?