The kinetic energy (in joules ) of a moving object can be calculated from the expression 1/2mv to the second power, where m is the mass of the object in kilograms and v is it’s speed in meters per second. find the kinetic energy of a 0.145-kg baseball that is thrown at a speed of 40 meters per second. e = joules

Apiling for a high-rise building is pushed by two bulldozers at exactly the same time. one bulldozer exerts a force of 1250 pounds in a westerly direction. the other bulldozer pushes the piling with a force of 2650 pounds in a northerly direction. what is the direction of the resulting force upon the piling, to the nearest degree? a. 65 n of w b. 25 n of w c. 45 n of w d. 35 n of w