A flux of 4 × 10-5 Wb is maintained through a coil for 0.5 s. What emf is induced in this coil by this flux?
A) No emf is induced in this coil.
B) 2 × 10-5 V
C) 8 × 10-5 V
D) 6 × 10-5 V
E) 4 × 10-5 V
A
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Which has the larger kinetic energy, a 50-kg person running at a speed of 2 m/s, or a 5-g nickel falling at a speed of 200 m/s?
A. The running person B. The falling nickel C. Both have about the same kinetic energy.
Claims that appear to be pseudoscience should be
A. accepted if it is said to have scientific validity B. tested experimentally C. accepted if promoted by news media D. all of the above
Which of the following statements does not lend support to the idea that carbon dioxide is a cause of global warming?
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Which of the following is not a dwarf planet?
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