PLEASE HELP ASAP A skateboarder weighing 1245 grams travels down hill at a rate of 367.5 centimeters in 3 seconds. What is the skateboarder's kinetic energy?

A roller coaster cart travels to the top of the track with a PE of 125.7 J and descends to the bottom of the largest hill with a KE of 89.5 J. What is the mechanical energy of the roller coaster?

A golf ball weighing 86.4 grams is dropped from a height of 1.15 meters. What is the gravitational potential energy, GPE, of the golf ball before it is dropped?

it is called kinetic energy

true is the correct answer

hope i

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.