The figure shows an LR circuit with a switch and a 240-volt battery. At the instant the switch is closed the current in the circuit and the potential difference between points a and b, Vab, are
a. 0 A, 0 V
b. 0 A, ?240 V
c. 0 A, +240 V
d. 0.024 A, 0 V
e. 0.024 A, +240 V
c
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People can snorkel down to a depth of roughly one meter. This means that the additional pressure on the air in their lungs is roughly
A. 9800 N. B. 9800 Pa. C. 9800 ATM. D. 19,600 N. E. 19,600 N/m2.
The acceleration of a ball as it rolls down a ramp is 4 m/s2 . The ball is referred to 2 s after it starts to roll. The velocity acquired after starting from rest is __________
Fill in the blank(s) with correct word
Ideal Gas Law: A vertical cylinder, closed at the bottom end, contains 0.0100 mol of ideal gas. It is fitted at the top with a piston that can move freely. The mass of the piston is 14.0 kg and the initial height of the piston above the bottom of the cylinder is 25 cm. What is the temperature of the gas? (R = 8.31 J/mol ? K)
A. 290 K B. 413 K C. 3620 K D. 405 K E. 500 K
The peak output of a generator is 20. A and 240. V. What average power is provided by the generator?
What will be an ideal response?