When you rapidly stir some raw eggs with an egg beater, their temperature
A) increases.
B) decreases.
C) remains unchanged.
Answer: A
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Electric Field of Point-Charges: Three equal-magnitude point charges of varying signs are placed at the corners of a square of side d as shown in the figure. Which one of the arrows shown represents the direction of the net electric field at the center of the square?
A. A B. B C. C D. D
A long linear charge distribution of charge density 1.35 nC/m is surrounded by a concentric cylindrical surface of length 1.60 m and radius 23.6 cm. What is the electric flux through the surface of the cylinder?
A. 0.00
B. 160 
C. 244
D. 280
E. 316
Pollution is always a consequence of exploitation of resources
What will be an ideal response?
A celestial object called a pulsar emits its light in short bursts that are synchronized with its rotation. A pulsar in the Crab Nebula is rotating at a rate of 30 revolutions/second. What is the maximum radius of the pulsar, if no part of its surface can move faster than the speed of light (3 × 10^8 m/s)?