Which horse moves faster in m/s on a merry-go-round?
A) one near inner rail
B) one near outer rail
C) both move at the same speed in m/s.
Answer: B
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Which of the following best explains the origin of primitive meteorites?
A) They are leftover chunks of rock from the earliest period in the formation of the solar system. B) They are fragments of comets rather than of asteroids. C) They are fragments of an asteroid that was shattered by a collision. D) They are fragments of rock chipped off the planet Mercury. E) They are fragments of rock chipped off the planet Mars.
For a wave on the ocean, the amplitude is:
a. the distance between crests. b. the height difference between a crest and a trough. c. one half the height difference between a crest and a trough. d. how far the wave goes up on the beach.
The atomic number of a given element is equivalent to which of the following?
a. neutron number in the nucleus b. sum of the protons and neutrons in the nucleus c. proton number in the nucleus d. number of electrons in the outer shells
A ball thrown upwards reaches a maximum height and then comes back down to the original level. As the ball is going downwards the velocity and acceleration both point down
Indicate whether the statement is true or false