The mass of a newborn baby is 4.2 kilograms what is the baby’s weight? (The acceleration due to gravity is 9.8 m/s2)

If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.

Give one example to show that when substances are mixed,it may result in a chemical or a physical change depending on the conditions.

A200-n force is applied to the foot-operated air pump. the return spring s exerts a 2.6-n·m moment on member oba for this position. determine the corresponding compression force c in the cylinder bd. if the diameter of the piston in the cylinder is 40 mm, estimate the air pressure generated for these conditions. state any assumptions. enter a positive number for the compression force c.