A moon orbit a distant planet at a distance of (3.05x10^6) m. If the moon requires 3.642 days to orbit the planet and the moon has a mass of 4.75 x 10^12 kg, The magnitude of the Centripedal force exerted on the moon by the planet is _.__ x 10^_ N 1.2. experimental evidence shows that the umbriel orbits Uranus with a period of 4.14 earth days. If the orbital radius is determined to be (2.69x10^8) m, The experimental mass of Uranus is _.__ x10 ^_ kg. 1.3. A 4.75 kg object falls 399 m, the speed of the object just before it hits the ground is __._ m/s. 1.4. A 24.7 kg object is dropped from a roof of a 20.7 m tall building. The speed of the object when it is 3.00 m above the ground is __._ m/s. 1.5. A machine applies force of 333 N for 13.0 seconds to pull an object a distance of 25.0 m. The power required by the machine is ___ watts. 1.5. A bullet is fired into a ballistic cushion at 217 m/s. If the bullet has a mass of 5.14 g, an exits the 85.1 cm thick cushion with a velocity of 131 m/s, The magnitude of the force applied to the bullet by cushion is __._N. 1.6. A 0.647 kg mass is attached to a horizontal spring, and is oscillating along a frictionless surface. If the spring constant of the spring is 75.0 N/m. And the maximum displacement is 17.4, The maximum speed of the mass as it passes through the equilibrium point is _.__ m/s. 1.7. The magnitude of the restoring force for pendulum bob with a mass of 3.95 kg that has been pulled to angle of 25.0 degrees from the vertical, on earths surface is __._ N. 1.18. A 6.07 kg mass is attached to a vertical spring, causing the spring to stretch by 13.2 cm. The spring constant of the spring is ___ N/m. 1.19. A 1.74 kg mass is attached to a vertical spring. If the spring goes down and returns to original position 407 times in 6 minutes, the spring constant for the spring is __._ N/m. 1.20. A police car is coming towards you at 13.3 m/s with its 923 Hz siren in. The frequency you will hear if the speed of sound is 340 m/s ___ Hz