A scuba diver is in a freshwater lake (water density=1000 kg/m3). To have neutral buoyancy, she has to wear a weight belt with a mass of 8 kg. a. If she and the rest of her gear had a total mass of 65 kg before putting on the weight belt, what is her total volume, in liters, after putting it on? 1 m3 = 1000 liters.

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative