Entropy of the universe is increasing
Indicate whether the statement is true or false
TRUE
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What is the impedance of an ac series circuit with 12.0 ? of resistance, 15.0 ? of inductive reactance, and 10.0 ? of capacitive reactance?
A) 21.9 ? B) 13.0 ? C) 11.6 ? D) 27.7 ?
A ten loop coil of area 0.23 m2 is in a 0.047 T uniform magnetic field oriented so that the maximum flux goes through the coil. This flux is
A) 3.4 × 10-2 Tm2. B) 1.1 × 10-3 Tm2. C) 3.4 × 10-1 Tm2. D) 1.1 × 10-2 Tm2. E) 1.1 × 10-1 Tm2.
A spaceship captain lands on an unknown planet. Before venturing forth, he needs to find out the free fall acceleration on that planet
All he has available to him is some thin light string, a stopwatch, and a small 2.75-kg metal ball (it was a rough landing). So he lets the ball swing from a 1.5-m length of the string, starting at rest, and measures that it takes 1.9 s for it to swing from the place where he released it to the place where it first stops as it reverses direction. What is the free fall acceleration on this planet?
Would increasing the load factor for air travel reduce per passenger energy use? Explain
What will be an ideal response?