At a particular instant, an electron moves eastward in a uniform magnetic field that is directed straight downward. The magnetic force that acts on it is
A) Northward.
B) directed upward.
C) Westward.
D) directed to the South.
E) zero.
D
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A person is nearsighted with a far point of 75.0 cm. (a) What focal length contact lens is needed to give him normal vision? (b) What is the power of the corrective lens?
What will be an ideal response?
Dawn images of Vesta show that it is much wider than it is tall. What might be the reason for its irregular shape?
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Which of the following statements is TRUE?
A. Saturn has small- and medium-sized moons, but no large ones. B. Jupiter's solid surface lies just below the cloud layers visible from Earth. C. Neither Uranus or Neptune have ring systems. D. The Great Red Spot is an anti-cyclone on Jupiter E. There is no evidence to suggest that either Jupiter or Saturn has a rocky core.
When an acid reacts with a base, the products are ______________ and a salt
Fill in the blank(s) with correct word