A 20g bullet is fired and hits the trunk of a tree when it possessed a kinetic energy of 100 J . Determine the speed of the bullet before hitting the tree.

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?