The radius of the satellite’s orbit around the center of the Earth is r = 17 2 R , where R is the radius of the Earth. Hint: You may find it useful to take into account that the gravitational force is a conservative force. Hint: The universal gravitational force law is F~ = G M m r 2 ˆr . Earth R Satellite 17 2 R Caution: Neglect the rotational kinetic energy due to the Earth’s rotation. Find the energy required to launch a satellite from Earth into the circular orbit at the specified radius r = 17 2 R.

High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.

Why is the energy that results from a roller coaster's position at the top of a hill referred to as potential energy?

Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron