A 30 kg is placed on a skateboard and pushed across the room with a velocity of 4 m/s. the pusher applies more force, increase the velocity to 10 m/s. How much work was done to move the box ?

The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation , where i is the intensity of a given sound and is the threshold of hearing intensity. what is the intensity, in decibels, [i(db)], when ? use a calculator. round to the nearest whole number. 8 9 19 80

There are weak or strong attractive forces between atoms of liquids with a high viscosity

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is