A dog is running at a speed of 2 m/s sees a cat and speeds up to 4.2 m/s over the next 1.4 seconds. What is the dog's acceleration?​

An electron and a proton have the same kinetic energy upon entering a region of constant magnetic field and their velocity vectors are perpendicular to the magnetic field. suppose the magnetic field is strong enough to allow the particles to circle in the field. note: you'll need to look up the masses for an electron and proton. 1) what is the ratio of the radii of their circular paths rp/re?

The air that we breath is made mostly of which gaseous molecule

How to calculate voltage drop in a series circuit