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(12%) Problem 13: A meteoroid is moving towards a planet. It has mass m = 0.86x10° kg and speed v1 = 1/x107 m/s at distance R = 2.3x10 m from the center of the planet. The radius of the planet is R = 0.74x107m. The mass of the planet is M = 7.6x1025 kg. There is no air around the planet. m OV, R Otheexpertta.com A 14% Part (a). Enter an expression for the gravitational potential energy PE of the meteoroid at R, in terms of defined quantities and the gravitational constant G. Assume the potential energy is zero at infinity PE= Deductions Grade Summary ed Potential 100 В 8 d h P Submissions Attempts remaining per attempt detailed view m R G M R1 M 7 8 9 45 6 12 3 + 0 voll ed ed V Submit Hint I give up! deduction per hint. Hinto remaining Feedbacki 24 deduction per feedback & 145 Part (b) Calculate the value of PE in joules. A 14% Part (e) Enter an expression for the total energy of the meteoroid at R, in terms of defined quantities 4 14% Part (d) Calculate the value of Ey in joules. 4 145 Part(e) Enter an expression for the total energy E of the meteoroid at R, the surface of the planet, in terms of defined quantities and w, the meteoroid's speed when it reaches the planet's surface A 14 Part ( Enter an expression for y, the meteoroid's speed at the planet's surface, in terms of G.M.V. R., and R. 14% Part(s) Calculate the value of vin meters per second.