The loop is entirely inside the field.
A. Current flows clockwise in the loop.
B. Current flows counterclockwise in the loop.
C. Current does not flow in the loop.
C. Current does not flow in the loop.
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If an object remains at rest, then the sum of both the external torques and the external forces exerted on the object must be zero
A) True B) False
During the volcanic eruption of Mt. Pelee in 1902, an incredibly hot "burning cloud" rolled down the mountain and incinerated the town of Saint-Pierre. From the damage done, the temperature in the cloud was estimated at 700°C. If the air temperature
was 20°C and a mole of air is 29 grams, estimate the molecular weight of the gas in the "burning cloud" that made it heavier than the surrounding air. (As a follow-on, estimate the most probable composition of the cloud. Some typical volcanic gases are H2S, SO2, H2SO4, CO2, NO.)
If y = 0.02 sin (30x ? 400t) (SI units), the angular frequency of the wave is
a. 30 rad/s b. 30/2? rad/s c. 400/2? rad/s d. 400 rad/s e. 40/3 rad/s
Glacial deposits are characteristically
A) well sorted and well rounded. B) composed of unsorted, angular rock fragments. C) asymmetrical rock debris. D) called outwash.