The Big Bang
A) took place within space.
B) marked the beginning of space and time.
C) occurred as a result of disturbances within the Large Magellenic cloud.
D) took place within time.
Answer: B
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According to Lenz's law, the direction of an induced current in a conductor will be that which tends to produce which of the following effects?
A) enhance the effect which produces it B) produce a greater heating effect C) produce the greatest voltage D) produce the smallest voltage E) oppose the effect which produces it
Fission fragments are always identical
a. True b. False Indicate whether the statement is true or false
Which statement is incorrect?
a. A kilogram has an equivalent weight greater than that of a pound. b. A kilometer is longer than a mile. c. A meter is longer than a yard. d. A liter is larger than a quart.
Two extremely large nonconducting horizontal sheets each carry uniform charge density on the surfaces facing each other. The upper sheet carries +5.00 µC/m2. The electric field midway between the sheets is 4.25 × 105 N/C pointing downward
What is the surface charge density on the lower sheet? (?0 = 8.85 × 10-12 C2/N ? m2)