A cylinder rolls, without slipping, down an incline directly toward you. The cylinder’s angular velocity 
points in which direction?
A. Toward you
B. Away from you
C. To your right
D. To your left
E. Some other direction (specify
C. To your right
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According to modern science, what was the approximate chemical composition of the solar nebula?
A) 50% hydrogen and helium, 50% everything else B) 98% hydrogen and helium, 2% everything else C) 98% hydrogen, 2% helium D) roughly equal proportions of hydrogen, helium, water, and methane
A particle in a 453 m-long linear particle accelerator is moving at 0.875c. How long does the particle accelerator appear to the particle?
A) 219 m B) 589 m C) 104 m D) 936 m
The speeds of the planets about the Sun depend on
A) their distances from the Sun. B) the masses of the planets. C) both of these D) none of the above
Hawaii's weather is chiefly affected by what type of air mass?
a. mA b. mP c. cP d. mT