Free protons and neutrons are spewed throughout the atmosphere by

A) nitrogen decay.
B) carbon decay.
C) the bombardment of cosmic rays upon atoms.
D) all of the above
E) none of the above


Answer: C

Physics & Space Science

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The fact that we can only calculate probabilities for values of physical quantities in quantum measurements means that

a. radiation and matter are not described by mathematical relations between measurements. b. the probabilities cannot be calculated from mathematical relationships. c. the results of physical measurements bear no relationship to theory. d. the average values of a large number of measurements correspond to the calculated probabilities. e. the average of the values calculated in a large number of different theories corresponds to the results of a measurement.

Physics & Space Science

Edgar Jones, angry at having purchased a tasteless pizza, drops his pizza off the Brooklyn bridge. As it falls, Edgar's pizza has a constant [or unchanging]

(NOTE: Neglect air resistance.) A) velocity. B) speed. C) acceleration. D) position. E) All of the above.

Physics & Space Science

The ________ of Jupiter's disk is caused by its high rate of rotation and a gaseous composition

Fill in the blank(s) with correct word

Physics & Space Science

A stunt pilot weighing 0.70 kN performs a vertical circular dive of radius 0.80 km. At the bottom of the dive, the pilot has a speed of 0.20 km/s which at that instant is not changing. What force does the plane exert on the pilot?

a. 3.6 kN up b. 4.3 kN up c. 2.9 kN down d. 2.9 kN up e. 5.8 kN down

Physics & Space Science