ide of the so-called gravitational horizon. D Question 30 7 pts A small probe is placed in orbit around a planet. The orbit has a radius of 10 meters. The mass of the planet is 1024 Kg. It is observed that the planet pulls the probe with a force of 138 Newtons. Determine the mass, in Kilograms, of the probe. Do not include units in your answer. 5 pts Question 31 tof the size of the pinhole? For example, if7 pts cements A machine is used to lift heavy boxes to a storage area. It is found that during its operation, the machine acquires 1,698 Joules from the electric system but that, while lifting a box, 405 J are dissipated as heat. What is the efficiency, expressed as a percentage, of this machine? Do not include units or percentage sign in your answer. re D Question 25 7 pts A toy car speeds up from rest until reaching a velocity such that its kinetic energy is 131 Joules. The force used to push the car to reach this velocity is of 4 Newtons. What distance, in meters, licies was the car pushed to reach this velocity, starting from rest? Do not include units in your