A hunter on a frozen, essentially frictionless pond uses a rifle that shoots 5.00-g bullets at 1,075 m/s. The mass of the hunter (including his gun) is 75.0 kg, and the hunter holds tight to the gun after firing it. Find the "magnitude" of the recoil velocity (m/s) of the hunter if he fires the rifle at 65.0° above the horizontal.

The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping

See the attachment and solve question 5th

Which type of energy is transferred by convection currents?