A 300 T urn coil of area 25 cm2 is placed in an 80 mT magnetic field. If the coil carries a current of 3.3 A, what is the magnitude of the maximum magnetic torque it could experience?
A. 20 N·m
B. 6.0 N·m
C. 0.13 N·m
D. 0.20 N·m
E. 0.060 N·m
D. 0.20 N·m
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Our textbook discusses the cosmic calendar, a model of the history of the universe scaled to a single year. The length of time represented by one month on this cosmic calendar is therefore
A) about ten million years. B) about one million years. C) about one billion years. D) about ten billion years. E) about 1000 years.
What is the kinetic energy of a 0.135 kg baseball thrown at 40.0 m/s?
a. 54.0 J b. 87.0 J c. 108 J d. 216 J
The ____ Moon is visible above the western horizon a couple of hours before sunrise
a. waning gibbous b. waxing gibbous c. waxing crescent d. waning crescent e. new
The principal cause of erosion and transportation of sediment in a desert environment is
A) wind. B) caravans. C) ice. D) water.