All fission bombs are based on
A) uranium.
B) either uranium or plutonium or both.
C) isotopes of hydrogen.
D) either isotopes of hydrogen or uranium or both.
E) laughing gas.
B
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Indicate whether the statement is true or false
The small piston of a hydraulic lift has a diameter of 8.0 cm, and its large piston has a diameter of 40 cm. The lift raises a load of 15,000 N. Assume the pistons each have negligible weight
(a) Determine the force that must be applied to the small piston. (b) Determine the pressure applied to the fluid in the lift.
Zeros at the beginning of a number are significant
Indicate whether the statement is true or false
A gamma ray is also known as
A) an electron. B) a positron. C) a helium nucleus. D) a high-energy photon.