During the Planck Epoch, all forces were ________, and the universe was considered as a singularity
Fill in the blank(s) with correct word
unified
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Power: How many joules of energy are used by a 2.0 hp motor that runs for 1.0 hour? (1 hp = 746 W)
Fill in the blank(s) with the appropriate word(s).
A car moving at a steady 10 m/s on a level highway encounters a depression that has a circular cross-section with a radius of 30 m
The car maintains its speed as it drives through the depression. What is the force exerted by the seat of the car on a 60.0-kg passenger when the car is at the bottom of the depression? A) 200 N B) 390 N C) 790 N D) 490 N E) 590 N
A 20-?F capacitor charged to 2.0 kV and a 40-?F capacitor charged to 3.0 kV are connected to each other, with the positive plate of each connected to the negative plate of the other. What is the final charge on the 20-?F capacitor after the two are so connected?
a. 53 mC b. 27 mC c. 40 mC d. 80 mC e. 39 mC
The area and the number of turns in a loop of wire are doubled. Assuming that all the other parameters remain the same, what happens to the induced emf in that loop of wire?
A) It is doubled. B) It is reduced by a factor of 2. C) It is reduced by a factor of 4. D) It is quadrupled. E) It stays the same.