How much work is done on a vacuum cleaner pulled 3.0 m by a force of 50.0 N at an angle of 30.0° above the horizontal?

Select the three ways that the parallel-plate capacitor differs from a car battery.

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

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.