A high jumper leaps straight up with an initial speed of 6 m/s. How high will this take him? (Hint: you don't need the jumper's mass to figure this out! Which equation should we use if we don't know the mass?)

Electromagnetic induction. a coil of wire contains n turns and has an electrical resistance r. the radius of each turn is a. initially, inside the coil there exists a uniform magnetic field of magnitude b0 parallel to the axis of the coil. the magnetic field is then reduced slowly. the current induced in the coil is i. how long does it take for the magnitude of the uniform field to drop to zero?

The ability to make things happen is also called a. heat b. force c. matter d. energy

Four identical lab carts each have a mass of 200 kg. different masses are added to the carts and the velocities are measured. all carts move to the right.