How does changing the threads on a screw affect the force and distance required to perform work?

Four 5-gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. use the following specific heat capacity data to determine which block will increase its temperature the most.

Standing at the same location, which organism would have the greatest gravitational attraction to the earth? a- your pet dog b- your pet ant c- your pet opossum d- your pet elephant

Kinetic energy depends a. mass b. speed (velocity) c. both of the above d. none of the above