Ohm's Law: What potential difference is required across an 8.0-? resistor to cause 2.0 A to flow through it?
Fill in the blank(s) with the appropriate word(s).
16 V
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If the index of refraction for a silica glass fiber is 1.46, which of the following of refraction indices for a coating would produce total internal reflection?
(a) 1.30 (b) 1.46 (c) 1.50 (d) 1.60
Carnot Engine: An ideal Carnot heat engine operates between 285 K and 460 K. What is its efficiency?
A. 0.38 B. 0.62 C. 0.61 D. 1.61
Mass on a Spring: A 92-kg man climbs into a car with worn out shock absorbers, and this causes the car to drop down 4.5 cm. As he drives along he hits a bump, which starts the car oscillating at an angular frequency of 4.52 rad/s. What is the mass of the car?
A. 890 kg B. 760 kg C. 920 kg D. 990 kg E. 1900 kg
An LR circuit contains an ideal 60-V battery, a 51-H inductor having no resistance, a 21-? resistor, and a switch S, all in series
Initially, the switch is open and has been open for a very long time. At time t = 0 s, the switch is suddenly closed. When the voltage across the resistor is equal to the voltage across the inductor, what is the current in the circuit? A) 1.4 A B) 0.57 A C) 1.1 A D) 0.86 A E) 1.7 A