A spring with a force constant of 1.50 N/m is attached to a mass of 120 g. The system has a damping constant of 0.0180 Ns/m. How long does it take the amplitude of the oscillations to decrease from 10.0 mm to 5.00 mm?
A) 12.5 s
B) 10.0 s
C) 6.25 s
D) 4.62 s
E) 9.24 s
E
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A characteristic of a glacier is
a) meandering. b) a U-shaped channel cut deep into mountain valleys. c) V-shaped valleys between mountains. d) inability to move large rocks.
If an extrasolar planet suddenly became more massive, but kept the same radius and orbit, what would change during an observed transit?
A) The amount of starlight would have a larger dip during the transit. B) The amount of starlight would have a smaller dip during the transit. C) The time between transits would decrease. D) The time between transits would increase. E) Nothing. The mass of a planet does not affect the appearance of a transit.
Consider two cylinders of gas identical in all respects except that one contains oxygen O2 and the other helium He
Both cylinders initially contain the same volume of gas at 0°C and 1 atm of pressure and are closed by a movable piston at one end. Both gases are now compressed adiabatically to one-third their original volume. (a) Which gas will show the greater temperature increase? A. the O2 B) the He C) Neither; both will show the same increase. D) It is impossible to tell from the information given. (b) Which gas will show the greater pressure increase? A. the O2 B) the He C) Neither; both will show the same increase. D) It is impossible to tell from the information given.
The circuit below contains 4 100-W light bulbs. The emf is 110 V. Which light bulb(s) is(are) brightest?
a.
A
b.
B
c.
C
d.
D
e.
C and D