A30 kg dog runs at a speed of 15 m/s. what is the dog's kinetic energy (in jewels)? round the answer to two significant digits.

Awheel rotates without friction about a stationary horizontal axis at the center of the wheel. a constant tangential force equal to 82.0 n is applied to the rim of the wheel. the wheel has radius 0.150 m . starting from rest, the wheel has an angular speed of 12.8 rev/s after 3.88 s. what is the moment of inertia of the wheel?

An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?

The pressure proportional to the area a- inversely b- directly c- increase d-decrease