A proton and a deuteron are moving with equal velocities perpendicular to a uniform magnetic field. A deuteron has the same charge as the proton but has twice its mass. The ratio of the magnetic force on the deuteron to that on the proton is:
a. 1.
b. 2.
c. 0.5.
d. There is no magnetic force in this case.
A
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A cube of aluminum is at a depth of 1.00 km under water whose density is 
The bulk stress on the cube due to the water is
a. 
b. 
c. 
d. 
e. 
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1.a decrease in the volume at constant pressure 2.a decrease in the pressure at constant volume 3.a decrease in both the pressure and the volume 4.an increase in the pressure at constant volume
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