An asteroid starts at rest infinitely far from Earth. The asteroid has a mass of 1.00×10ª kg. G=6.67x10-11 Nm²/kg² MAsteroid= 1.00×104 kg MEarth=5.97x1024 kg REarth= 6.37x106 m What is the change in gravitational potential energy between the asteroid's starting point and when it hits the earth's surface? Does it gain or lose potential energy? Submit Answer Tries 0/2 What is the final kinetic energy of the asteroid when it hits the earth's surface? Submit Answer Tries 0/2 What is the final velocity of the asteroid when it hits the earth's surface? m/s

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A planet with a radius of 6.00 × 107 m has a gravitational field of magnitude 40.2 m/s2 at the surface. What is the escape speed from the planet? ____km/s

1. What is the gravitational potential energy in a system of three objects with masses m₁ = 2.0 × 1020 kg, m2 = 4.0 × 1020 kg, and m3 1.0 × 1021 located at r₁ = 2.0 × 10¹3 m 1.0 × 106 m -1.3 × 10¹2 m 1 respectively? 9 r2 = -6.0 × 10¹3 m 2.2 × 10¹² m –5.7 × 10³ m {] 9 T3 = = 1.5 × 10¹1 m −6.5 × 10² m 9.2 × 10¹0 m