Tarzan swings back and forth on a long vine. His friend Jane notices 30. swings in 2.4 minutes
(a) What is the frequency of the swing?
(b) What is the vine length?
(a) 0.21 Hertz
(b) 5.7 m
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Two infinite parallel surfaces carry uniform charge densities of 0.20 nC/m2 and ?0.60 nC/m2 . What is the magnitude of the electric field at a point between the two surfaces?
a. 34 N/C b. 23 N/C c. 45 N/C d. 17 N/C e. 90 N/C
Define shepherd moons and give an example of them at work
What will be an ideal response?
An electric motor on an airplane operates on 24 volts and draws a current of 15 amperes. (a) What is the power consumption of the motor? (b) How much energy does the motor use during a 2 hour flight?
Vision Problems: A nearsighted man wears contact lenses of -3.00 diopters. With these lenses, his corrected near point is 25.0 cm. What is his uncorrected near point?
Fill in the blank(s) with the appropriate word(s).