Elementary Particles: How many quarks are in a deuteron, 
H?
A. 2
B. 3
C. 4
D. 6
E. 9
Answer: D
You might also like to view...
Which of the following types of electromagnetic radiation has the greatest energy?
a. X-rays b. visible light c. radio d. gamma rays e. infrared radiation
The force of Earth's gravity on a capsule in space will lessen as it moves farther away. If the capsule moves to twice its distance, the force toward Earth becomes
A) half. B) three-quarters. C) one-fourth. D) none of the above
A light bulb used in a slide projector draws a current of 6 amperes when operating on 120 volts.The power consumed by the light bulb is 20 watts
a. True b. False Indicate whether the statement is true or false
Why do astronomers think Earth ended up with so little CO2 compared with Mars and Venus?
A. Volcanoes on Earth outgassed less CO2 than on Venus and Mars. B. Pollution on Earth has reduced the amount of CO2 originally present. C. Plant life and abundant water have removed most of the CO2, locking it into rocks and the oceans. D. Comets striking the surfaces of Venus and Mars added CO2 to their atmospheres, but not to Earth.