Q.10: A ball of mass 2 kg is fired straight up with an initial speed of 20 m/s. It rises to its maximum height, and then falls down to its starting point. Neglecting air resistance, the work (in J) done on the
ball by gravitational force through the entire trip is:​

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?

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.

Transfer chemicals from one location to another to weather objects. a-water b-physical weathering c-chemical weathering