Q. A hydraulic cylinder moving a robotic arm has a diameter of 5.20 cm and can exert a maximum force of 5.60kN. What pressure must the hydraulic lines be capable of withstanding?
Q. Compute the force of gravity between a newborn baby (mass = 4 kg) and the planet Mars (mass = 6.4 x10^23 kg), when Mars is at its position closest to Earth (distance = 8.0 x10^10 m).