Explain the following statement from the text: “Magnets exert magnetic force as a result of magnetic field."

Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?

Aforce of 200 n is applied to an input piston of cross-sectional area 2 sq. cm pushing it downward 2.8 cm. how far does the output piston of cross-sectional area 12 sq. cm move upward? show all work.

An object of dimensions 50 cm x 40 cm x 0.20 cm has a mass 60g. find its density in g/cm3 and kg/ m3