HELP PL A pulse travels at speed v on a stretched rope.

By what factor must you increase the force you exert on the rope to cause the speed to increase by a factor of 1.20?
F'/F =

The velocity of a curling stone is due east. what will be the direction of the momentum of the curling stone as it moves?

Jason is a body builder. despite being more fit, he weighs more than his brother ryan, who is the same height. which is a possible reason? a. jason has more muscle mass than ryan does. b. jason has more body fat than ryan does. c. jason has more muscle mass and body fat than ryan does d. jason has less body fat than ryan does.

Awheel of mass 48 kg is lifted to a height of 0.8 m. how much gravitational potential energy is added to the wheel? acceleration due to gravity is g = 9.8 m/s2. a. 30.4 j b. 3.1 j c. 297.9 j d. 11,321 j