Approximately how many neutrinos pass through your body each second?
A) about a thousand trillion
B) about one thousand
C) about 1023
D) None; they are blocked by the Earth's atmosphere.
A) about a thousand trillion
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Gravity causes the pressure in the ocean to vary with depth
a. True b. False Indicate whether the statement is true or false
The mercury column in an ordinary medical thermometer doubles in length when its temperature changes from 95? F to 105? F. Choose the correct statement:
A. the coefficient of volume expansion of mercury is 0.1 per F? B. the coefficient of volume expansion of mercury is 0.3 per F? C. the coefficient of volume expansion of mercury is (0.1/3) per F? D. the vacuum above the column helps to "pull up" the mercury this large amount E. none of the above is true
If an object is stretched beyond the elastic limit, it enters the _______ on an applied force versus elongation graph for a typical metal
A) elastic region B) proportional region C) plastic region D) ultimate strength region E) breaking region
Why is spectroscopy important to astronomers?
What will be an ideal response?