A 0.5 kg bird starts off flying at a height of 30 m. At this height, the system has 20 J of gravitational potential energy. If the system has a final gravitational energy of 30 J, what is the final height of the bird? pls help im trynna go to sleep :(

According to newton’s law of universal gravitation, which statements are true? as we move to higher altitudes, the force of gravity on us decreases. as we move to higher altitudes, the force of gravity on us increases. as we gain mass, the force of gravity on us decreases. as we gain mass, the force of gravity on us increases. as we move faster, the force of gravity on us increases.