1) a .75 disk rolls down a 10m ramp. how many revolutions does it complete.
2) a uniform solid disk starts at 52 rad/s. to rest, it does 3900j of work. it has a radius of 1.2m. how long does it take to stop and how far does it go? (1/2mr^2)
3) a wheel is rotating at a constant rotational acceleration. what is true?
4) if you release a hoop, disk, and sphere at the same time from a ramp, what will have the greatest rotational acceleration.
5) 2 cylinders rotate counter clockwise are brought together. what is their rotational speed after? (one wheel has constants all of 1, the second one has constants all of 2)

elctricity and magnet is conversion to it

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.