The flow of a glacier begins
A) after it has reached a critical mass.
B) as pressure is exerted from behind.
C) when the accumulating snow begins to melt.
D) in the spring.
Answer: A
You might also like to view...
A boat hits a sandbar and slides some distance before coming to rest. Which of the arrows shown below best represents the direction of the boat’s acceleration as it is sliding? (Hint: Draw a motion diagram.)
A. A
B. B
C. C
D. D
E. E
F. F
T. Zero
A 30-year-old astronaut goes off on a long term mission in a spacecraft that travels at speeds close to that of light. The mission lasts exactly 20 years as measured on Earth. Biologically speaking, the astronaut's age would be
A) more than 50 years. B) exactly 50 years. C) less than 50 years. D) exactly 30 years. E) exactly 25 years.
The Earth is about 150 million km from the Sun, and the apparent brightness of the Sun in our sky is about 1,300 watts per square meter
Determine the apparent brightness we would measure for the Sun if we were located half the earth's distance from the Sun.
A student finds two ancient meters with numbered scales but no unit markings. He thinks that one is an ammeter and one is a voltmeter but doesn't know which is which. He measures the resistance of each, finding that meter A has a resistance of 5000 ohms and meter B has a resistance of 0.10 ohm. He can conclude that
A. A is the voltmeter and B is the ammeter. B. B is the voltmeter but A cannot be a useful meter. C. A is the voltmeter but B cannot be a useful meter. D. B is the voltmeter and A is the ammeter. E. neither can be a useful meter.