Which of the following is true of asteroids?
A) They are small rocky worlds.
B) They are small icy bodies.
C) Most of them are the size of Earth.
D) Most of them orbit between the orbits of Mercury and Venus.
A
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Which of the following properties can be inferred from the star’s orbital period?
a. the planet’s orbital radius b. the planet’s mass c. both the planet’s orbital radius and it's mass d. neither the planet’s orbital radius nor it's mass
Which of the following is not true about potential energy?
a. Potential energy is stored energy. c. Potential energy is a scalar quantity. b. Potential energy is related to position. d. Potential energy has direction.
Which is the law of reflection?
a. The angle of incidence is the complement of the angle of refraction. b. The angle of incidence is one-half the angle of refraction. c. The angle of transmission is equal to the angle of incidence. d. The angle of incidence equals the angle of reflection. e. The angle of incidence is twice the angle of reflection.
The Compton effect justifies that light acts as photons
Indicate whether the statement is true or false