A cannon tilted upward at θ = 33 ∘ fires a cannonball with a speed of 94 m/s . At that instant, what is the component of the cannonball’s velocity parallel to the ground?

In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j ?

If a simple machine reduces the strength of a force, what must be increased?

4. a 75.0 g piece of ag metal is heated to and dropped into 50.0 g of water at the final temperature of the mixture is what is the specific heat capacity of silver? 5. a 465 g chunk of iron is removed from petrucci, ralph h.. general chemistry (p. 290). pearson education. kindle edition.