Fusion of hydrogen nuclei is the origin of solar energy
Indicate whether the statement is true or false
T
You might also like to view...
In the Rutherford model of the hydrogen atom, a proton (mass M, charge Q) is the nucleus and an electron (mass m, charge q) moves around the proton in a circle of radius r. Let k denote the Coulomb force constant (1/4??0) and G the universal gravitational constant. The ratio of the electrostatic force to the gravitational force between electron and proton is:
A) kQq/GMmr2 B) GQq/kMm C) kMm/GQq D) GMm/kQq E) kQq/GMm
When gasoline is burned, it gives off 41 000 J/g of heat energy. If an automobile uses 14.1 kg of gasoline per hour with an efficiency of 23.0%, what is the average horsepower output of the engine? (1 hp = 746 W)
a. 49.5 hp b. 105 hp c. 35.1 hp d. 29.8 hp e. 59.5 hp
Which design is subject to chromatic aberration?
A) refractor B) prime focus reflector C) Newtonian reflector D) Cassegrain reflector E) Gregorian reflector
If the intensity of a sound is increased by a factor of 100, how is the decibel level changed? The new decibel level will be:
a. two units greater. b. double the old one. c. ten times greater. d. twenty units greater.