A star near the lower right of the H-R diagram is likely to be
A) red, with high luminosity.
B) red, with low luminosity.
C) hot, bright, and very large.
D) yellow, with luminosity similar to our Sun's.
E) blue, with high luminosity.
B
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If a bullet is fired into a solid wooden block and comes out the other side, the collision was ________ inelastic.
What will be an ideal response?
A 60.0-Hz AC generator with a peak voltage of 110 V drives a series RC circuit with R = 10.0 ? and C = 300 ?F. The peak current in the circuit is
a. 8.24 A. b. 8.84 A. c. 11.0 A. d. 12.4 A. e. 23.5 A.
A projectile is launched from ground level at an angle of 30.0° above horizontal with a speed of 10.0 m/s. If the projectile is moving over level ground, what is the maximum height above the ground that the projectile reaches?
A) 2.54 m B) 1.27 m C) 5.00 m D) 3.54 m E) 20.0 m
__________is the gradual increase in the surface temperature of Earth caused by human modifications to Earth's atmosphere
A) The greenhouse effect. B) Global warming C) Differentiation D) The Tyndall effect