Two masses are suspended by a cord that passes over a pulley with negligible mass. The cord also has negligible mass. One of the masses, 
has a mass of 7.0 kg and the other mass, 
has a mass of 3.0 kg. The pulley turns on a shaft through the center of the pulley and supports the pulley and all the masses. The vertical force of the shaft on the pulley that supports the whole system is
A. 49 N upward.
B. 49 N downward.
C. 82 N upward.
D. 82 N downward.
E. 98 N upward.
E. 98 N upward.
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The most striking "cloudmark" in Jupiter's atmosphere is the
A) Great Dark Spot. B) Cassini Division. C) Great Red Spot. D) Black Hole. E) Brown Dwarf.
Conversion of Units: speed of 65 miles per hour is the same as which of the following? (1.00 ft = 30.48 cm)
A. 24 m/s B. 29 m/s C. 32 m/s D. 37 m/s E. 42 m/s
The figure below shows a planet traveling in a clockwise direction on an elliptical path around a star located at one focus of the ellipse. When the planet is at point A,
A. its speed is constant. B. its speed is increasing. C. its speed is decreasing. D. its speed is a maximum. E. its speed is a minimum.
You could swallow a capsule of germanium, Ge (atomic number 32), without significant ill effects. If a proton were added to each germanium nucleus, however, you would not want to swallow the capsule because the germanium would
A) become arsenic. B) become radioactive. C) expand and likely lodge in your throat. D) have a change in flavor.