A 4.0g lead bullet travelling at 350m/s strikes a block of ice at 0°C. If all the heat generated goes into melting the ice, how much is melted? The latent heat of fusion of ice is 80Kcal/kg, and its specific heat is 0.50Kcal/kg.°C

Which term best describes the phrase “something that happens”?

Iron reacts with sulfur to form iron sulfide. if 60 grams of iron reacts with sulfur to produce 90 grams of iron sulfide, how much sulfur has been used in the chemical reaction?

Suppose that 27 j of work is needed to stretch a spring from its natural length of 6 m to a length of 9 m. (a) how much work is needed to stretch the spring from 12 m to 14 m? j (b) how far beyond its natural length will a force of 78 n keep the spring stretched?