-15° C ice is warmed, melted, water is warmed then vaporized then the vapor is heated to 115° C. What is each amount of heat and total heat needed for this
process?

The energy released by a nuclear fusion reaction is produced when

An owl dives toward the ground with a constant velocity of 4.40 m/s at 53.0° below the horizontal. the sun is directly overhead and casts a shadow of the owl directly below it. what is the speed (in m/s) of its shadow on level ground?

The gun from the crime scene shows tool marks where the serial numbers are ground off. there are also tool marks on the bullets left behind. what information can the tool marks on the bullets and gun provide about the crime? what type of evidence does this information provide, individual or class?