4. A wave is described by the following equation: = 10i(40 − 2). a) Identify the wavenumber and angular frequency and calculate the frequency, period, wavelength, and the speed of the wave. b) Draw the wave for t = 0.

the working equation for the angular size is the product of the physical size and 360 degrees divided by the product of two pi and distance from earth. the minimum size would be 0.559 degrees while the maximum size would be 0.49 degrees. 

find the sum of the two horizontal vectors and the sum of the two vertical vectors

isoceles right angled triangle