10.1. C
Concave minor forms on a screen a real image
of hoice the linear dimension of the object Object
and screen are then moved unnil the image is three
Kmes the size of the object. If the shift of the screen
PS 25cm, determine the shift of the object and the
focal length of the mirror.​

c)as speed changes, wavelength and frequency change.

everything changes!

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

e/c, where e is its total energy

k2s for potassium sulphide