Linear momentum is conserved in all collisions
a. True
b. False
Indicate whether the statement is true or false
True
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Light is without mass, so how can gravity have an effect on light?
A) The space through which the light passes is curved. B) Photons actually have a very small mass, so gravity does have an effect on them. C) When light interacts with particles, it loses some energy, and thus takes on some mass. D) Gravity has no effect on light.
A solenoid of length 0.700 m having a circular cross-section of radius 5.00 cm stores 6.00 µJ of energy when a 0.400-A current runs through it. What is the winding density of the solenoid? (?0 = 4? × 10-7 T ? m/A)
A) 104 turns/m B) 327 turns/m C) 1080 turns/m D) 865 turns/m E) 472 turns/m
A photon of wavelength 29 pm is scattered by a stationary electron. What is the maximum possible energy loss of the photon? (mel = 9.11 × 10-31 kg, h = 6.626 × 10-34 J ? s, c = 3.00 × 108 m/s)
A) 7.0 keV B) 10 keV C) 12 keV D) 4.0 keV E) 6.1 keV
A 100 gram glass container contains 200 grams of water and 50.0 grams of ice all at 0 src="https://sciemce.com/media/4/a6beff7b8db22a7632.png" class="w-image" />
A 200 gram piece of lead at 100
is added to the water and ice in the container. What is the final temperature of the system? (specific heat of ice = 2,000 J/kg
specific heat of water = 4,186 J/kg
heat of fusion of water = 333.7 kJ/kg, specific heat of glass = 837.2 J/km
specific heat of lead = 127.7 J/km
A. 5.33
B. 4.87
C. 3.65
D. 2.19
E. 1.75