A battery is used to light a bulb as shown. An identical battery is connected by closing switch S. What happens to the bulb?
1
Physics & Space Science
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A power line carries 1000 A at a height of 20 m above the ground. What is the resulting magnetic field at ground level?
A. 50 mT
B. 0.13 mT
C. 13 
T
D. 10 
T
E. 5.0T
Physics & Space Science
Define absorption and emission lines
What will be an ideal response?
Physics & Space Science
A moving bicycle exhibits less stability when the angular momentum of the wheels is less, which means
A. the inverse of the forward speed equals the torque. B. its forward speed is also slower. C. its forward speed is faster.
Physics & Space Science
The latent heat of vaporization of water is roughly 10 times the latent heat of fusion of water. The amount of heat required to boil away 1 kg of water is __________ the amount of heat required to melt 1 kg of ice
a. one tenth b. equal to c. 10 times d. unrelated to
Physics & Space Science