5 waves pass in 20 seconds. What is the frequency of the waves a) 4 Hz
Ob) 15 Hz
c).125 Hz
d) 2 Hz
e) .25 Hz

The process in which the nucleus of an atom splits into two lighter atoms, releasing a large amount of energy is nuclear

Astudent is given an assignment to demonstrate diffraction. he takes a photograph of a straw in a glass of water. the straw appears bent at the water level. which best describes this example? a) this is a good example of diffraction. b) this is an example of dispersion and not diffraction. c) this is an example of refraction and not diffraction. d) this is an example of reflection and not diffraction.

The law of conservation of energy states that energy cannot be created or , energy can be from one substance to another. the first blank is ' destroyed ' and for the second blank is ' transferred '