Which of these is exhibiting kinetic energy?

a) a space station orbiting earth
b) a rock on a mountain ledge
c) an archer with a flexed bow
d)a person sitting on a couch while watching tv
e)the high-energy phosphate bonds of a molecule of at

Akg a of 55 m at an of 11 ? . if is at 98 km/h,be ?

"an open tank has the shape of a right circular cone. the tank is 6 feet across the top and 5 feet high. how much work is done in emptying the tank by pumping the water over the top edge? note: the density of water is 62.4 lbs per cubic foot."

The experiment done in lab is repeated, using a ball that has unknown mass m. you plot your data in the form of f 2 versus m/l, with f in rev/s, m in kg, and l in m. your data falls close to a straight line that has slope 3.19 m/(kg · s2). use g = 9.80 m/s2 and calculate the mass m of the ball.