The normal force that acts on a block of ice that slides on a ramp
A) is equal to mg at all angles.
B) decreases as the slope of the ramp increases.
C) becomes greatest when the ramp is vertical.
Answer: B
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Compared to the average surface temperature on the surface of the Earth, the average surface temperature on the surface of Mars is
A) about the same B) much lower C) just slightly lower D) much higher
Why do experts think that nuclear fusion energy might be more acceptable to the public than nuclear fission energy?
What will be an ideal response?
Charge of uniform density 90 nC/m3 is distributed throughout the inside of a long nonconducting cylindrical rod (radius = 2.0 cm). Determine the magnitude of the potential difference of point A (2.0 cm from the axis of the rod) and point B (4.0 cm from the axis)
a. 1.9 V b. 1.4 V c. 2.2 V d. 2.8 V e. 4.0 V