The gravitational acceleration on a planet's surface is 16.00 m/s2. What is the gravitational acceleration at distance of one planet diameter above the surface of the planet?
A)
5.33 m/s2
B)
1.78 m/s2
C)
1.60 m/s2
D)
4.00 m/s2
E)
8.00 m/s2
B
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A vertical wire carries a current straight up in a region where the magnetic field vector points due North. What is the direction of the resulting force on this current?
A) North B) downward C) East D) West E) South
In the photosynthesis reaction
A) oxygen combines with the ATP molecule. B) oxygen combines with the carbon in glucose. C) carbon combines with the ATP molecule. D) CO2 combines with glucose. E) CO2 combines with H2O.
A source emits sound at a fixed constant frequency f. If you run towards the source, the frequency you hear is
a. the same as f c. lower than f b. higher than f d. unrelated to f
The expression(s) indicating the number of neutrons in a nucleus is
a. A b. N c. Z d. Z + N e. A – Z