Multiple Choice
Consider a meteoroid with a diameter of 10 cm and a mass of 2 kg that hits the Earth head-on while traveling at a speed of 25,000 m/s. How many times larger or smaller is the meteoroid's kinetic energy compared to that of a typical train whose mass is 2 * 106 kg and speed is 25 m/s?
A) The meteoroid's kinetic energy is equal to that of the train.
B) The meteoroid's kinetic energy is 1,000 times less than that of the train.
C) The meteoroid's kinetic energy is 1,000 times greater than that of the train.
D) The meteoroid's kinetic energy is 106 times greater than that of the train.
E) The meteoroid's kinetic energy is 109 times greater than that of the train.
Correct Answer:

Verified
Correct Answer:
Verified
Q24: Why does a comet usually have two
Q28: Cometary nuclei provide evidence that the ingredients
Q29: Give examples of a C-type asteroid and
Q30: Which group of asteroids regularly crosses Earth's
Q31: Antarctica is the best hunting ground for
Q32: Pluto is classified as a dwarf planet
Q35: Currently the surface of the dwarf planet
Q38: Which group of meteorites represents the conditions
Q50: Describe two modern-day (within the past 150
Q72: In its 1986 trip around the Sun,