A bowling ball with a force of 42.8 lbs hits the pins. The area that the ball strikes the pins with is 9.0 in2, what pressure does the ball exert in lbs/in2?

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?

What is the empirical formula for c4h8o2

3. how much energy in joules is required to evaporate .0005 kg of liquid ammonia to vapor at the same temperature? 4. how much energy ( in megajoules ) is given up by .75 kg of water at 0c when it freezes to form ice at 0c? 5. explain how heat works between and at critical temperatures?