Aswimmer swims north at 0.10 m/s relative to still water across a river that flows at 0.25 m/s from east to west. calculate the swimmer's velocity relative to the riverbank. no guessing. showing work is optional but appreciated

Acrow drops a 0.11kg clam onto a rocky beach from a height of 9.8m. what is the kinetic energy of the clam when it is 5.0m above the ground? what is its speed at that point?

The magnitude of the amount of energy released by burning a fuel source, measured in energy per unit mass, is called its fuel value. note that the fuel value is the negative of the isobaric specific heat of combustion for the fuel. if all the energy obtained from burning 1.23 pounds of butane with a fuel value of 10.85 kcal/g is used to heat 128.0 kg of water at an initial temperature of 18.3 °c, what is the final temperature? note that 1 lb = 453.6 g.

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?