Part A Most geologists believe that the dinosaurs became extinct 65 million years ago when a large comet or asteroid struck the earth, throwing up so much dust that the sun was blocked out for a period of many months. Suppose an asteroid with a diameter of 5.0 km and a mass of 2.51014 kg hits the earth with an impact speed of 4.0104 m/s. What is the earth's recoil speed after such a collision? Assume that the mass of the earth is 5.98 1024 kg. (Use a reference frame in which the earth was initially at rest.) Express your answer with the appropriate units. Vrecoil = Value Units Submit Request Answer Part B What percentage is this of the earth's speed around the sun? Assume that the orbit of the earth is a circle with the radius of 1.5 1011 m Express your answer in percents. Vrecoil Vorbital Submit Request Answer Provide Feedback ? % Next >