The ______________ effect provides evidence of motions within other planetary systems.
Fill in the blank(s) with correct word
[Ques. 2] If a ray of light passes from air into glass, the light will
a. travel along the normal.
b. bend toward the normal.
c. bend away from the normal.
d. continue traveling in the same direction.
[Ques. 3] A spaceship moves at a speed of 0.95 c away from the Earth. It shoots a star wars torpedo toward the Earth at a speed of 0.90 c relative to the ship. What is the velocity of the torpedo relative to the Earth? (The direction in which the spaceship moves is the positive direction.)
a. 0.34 c
b. 0.34 c
c. 0.060 c
d. 0.060 c
e. 0
[Ques. 4] Other planetary systems are detected by a wobbling of the star as a consequence of ______________ effects of a planet.
Fill in the blank(s) with correct word
[Ques. 5] If a ray of light passes from air into glass, the angle of incidence will be
a. less than the angle of refraction.
b. sometimes greater and sometimes less than the angle of refraction.
c. greater than the angle of refraction.
d. equal to the angle of refraction.
[Ques. 6] A 1000-kg automobile moving with a speed of 24 m/s collides with a 500-kg car initially at rest. If the two stick together, what is the velocity (in m/s) of the two cars after the collision relative to an automobile moving in the same direction at 15 m/s?
a. 14
b. 16
c. 24
d. 48
e. 1.0
[Ques. 7] Other planetary systems are best detected by the Doppler shifts that change the pattern of the star's ______________.
Fill in the blank(s) with correct word
[Ques. 8] The observation of a wet spot on a hot highway in the summer is caused by
a. dispersion.
b. diffraction.
c. refraction.
d. reflection.
[Ques. 9] A 1000-kg automobile moving with a speed of 24 m/s relative to the road collides with a 500-kg automobile initially at rest. If the two stick together, what is the velocity in m/s of the two cars after the collision according to an observer in a truck moving 10 m/s in the same direction as the moving cars?
a. 6
b. 11
c. 24
d. 26
e. 31
[Ques. 10] Our solar system is thought to have evolved from a(n) ______________.
Fill in the blank(s) with correct word
Quick Reply
