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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.

Specific heat refers to the amount of heat required to change 1 gram of a substance by degree(s) celsius

Two point charges, separated by 1.5cm, have charge values of +2.0 and-4.0 uc, respectively. what is the value of the mutual force between them