Three essential components of a nuclear reactor are: a fissionable fuel ,a coolant to transfer the heat, and
A) a scrubber to prevent radioactive isotopes from getting into the environment.
B) a radioactive substance to keep the reaction going.
C) tritium to speed up the neutrons.
D) control rods.
E) lead to stop the neutrons.
Question 2
Would it be easier i.e., would it require less rocket fuel to lift a rocket off the moon's surface or off Earth's surface, and why?
A) It would be equally difficult, because the rocket's weight would be the same on the moon as on Earth.
B) It would be easier on the moon, because the rocket's mass would be less on the moon than it is on Earth.
C) It would be impossible for the rocket to lift off of the moon, because there is no air on the moon.
D) It would be easier on the moon, because the rocket's weight would be less on the moon than it is on Earth.
E) It would be equally difficult, because the rocket's mass would be the same on the moon as on Earth.
Coolant flow through a typical engine cooling system.
A cutaway view of a typical two-stage turbine electric fuel pump.
A gasoline direct-injection system injects fuel under high pressure directly into the combustion ...
Shutoff valves must be used on vehicles equipped with plastic fuel lines to isolate the cause of a ...
The Fukushima disaster in Japan caused many governments to rethink their commitment to nuclear power
Essential Environment