You have available a galvanometer that gives a full-scale deflection for a 333-?A current and has a coil resistance of 33 ?
(a) What shunt resistance is needed to convert this galvanometer to a 5.0-A ammeter?
(b) What series resistance is needed to convert this galvanometer to a 5.0-V voltmeter?
(a) 2.2 mΩ (b) 15 kΩ
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The figure shows the graph of versus time for an object moving along the x-axis. Solve graphically for the average acceleration between t = 5.0 s and t = 9.0 s.
A. 4.0
B. 5.0
C. 0.5
D. 0.4
A clown 2 m tall looks at himself in a full-length mirror (floor-to-ceiling). Where in the mirror must he look to see his feet?
A. 1 m from the floor B. 50 cm from the floor C. 25 cm from the floor D. at the bottom of the mirror E. 1.5 m from the floor
A 23 kg mass is connected to a nail on a frictionless table by a massless string 1.3 m long. There is no appreciable friction between the nail and the string
If the tension in the string is 51 N while the mass moves in a uniform circle on the table, how long does it take for the mass to make one complete revolution? A) 5.2 s B) 4.8 s C) 3.8 s D) 4.5 s
The energy per photon in ultraviolet light is greater than in
A) radio waves. B) microwaves. C) visible light. D) all of the above E) none of the above