Aches a es at a
When is he accelerating?
A. When he is changing direction
B. When he is running at a constant
speed
C. He is not accelerating at all during the
jog

Write short note on the following ; collision theory, rotation angle and angular velocity, centripetal acceleration, coriolis force, and newton's law of gravitation.

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

What is the force that opposes motion and works against the downward pull? a) friction b) gravity c) weight d) acceleration