A kilometer contains 1 million meters
a. True
b. False
Indicate whether the statement is true or false
False
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Carbon-14 Dating: The radioactivity due to carbon-14 measured in a piece of a wooden casket from an ancient burial site is found to produce 20 counts per minute from a given sample, whereas the same amount of carbon from a piece of living wood produces 160 counts per minute. The half-life of carbon-14, a beta-minus emitter, is 5730 years. What would we calculate for the age of the artifact, assuming that the activity for living wood has remained constant over time?
A. 5700 years B. 11,500 years C. 14,800 years D. 17,200 years E. 23,000 years
The energy per unit charge supplied by a battery is its __________
Fill in the blank(s) with correct word
Let's say that hydrogen gas in a vessel is at equilibrium. That is, the temperature and the pressure of the gas are constant throughout the volume. What can be stated about all of the molecules within the gas?
1.They all have the same kinetic energy. 2.They all have the same speed. 3.They all have the same velocity. 4.None of these statements apply.
Which of the following is true of Saturn's moon Titan?
A) It has extremely high temperature of about 290°F. B) It has oxygen in its atmosphere. C) It appears to have a liquid-water ocean below its icy crust. D) It is rich in organic molecules.