The bathyscaphe dives to 3,652 m below the surface. The average density of seawater may be assumed to be 1,024 kg/m3. Approximate the bathyscaphe as a sphere of diameter 3.1 m. Atmospheric pressure at the ocean's surface is 101 kPa. Determine the net force, in kN, on the bathyscaphe's hull if the interior pressure is maintained at 120 kPa, for the comfort of the scientist inside. All pressures are specified in absolute. The thickness of the hull may be neglected.

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