Write an expression for a p-state lightwave of angular frequency ω and amplitude e0 propagating along a line in the xy-plane at 60° to the x-axis and having its plane-of-vibration corresponding to the xy-plane. at t = 0, x =0, and y = 0 the field is zero.

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 difference between a red shift and a blue shift has to do with wavelength frequency. t or f

Abucket full of water weights 4 kg and water well is 10m deep. a girl draws water from the well. it takes the girl 3 minutes to draw a bucket full of water from the well. what is the power of the girl?