Why are protons and neutrons are similar and different than each other? explain why.

What type of light does this light bulb produce most (i.e. at what wavelength does the spectrum have maximum intensity)?

What object a collides with object b and bounces back its final momentum is?

Arunner is training for an upcoming marathon by running around a 100-m-diameter circular track at constant speed. let a coordinate system have its origin at the center of the circle with the x-axis pointing east and the y-axis north. the runner starts at (x, y) = (50 m, 0 m) and runs 2.5 times around the track in a clockwise direction.