An electric fan has a power output of 60 w. how much work is done if the fan operates for 120 s?
a. 0.5 j
b. 60 j
c. 120 j
d. 7200 j

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

Which situation will produce the greatest change of momentum