Mr. soto was trying to explain how electrons move around the nucleus of an atom in circular orbits. which analogy best represents this concept?

Can somebody explain to me how newton's 3rd law relates to momentum? ~ap physics 1

Adiver in midair has an angular velocity of 6.0 rad/s and a moment of inertia of 1.2 kg·m2. he then pulls is arms and legs into a tuck position and his angular velocity increases to 12 rad/s. the net external torque acting on the diver is zero. what is his moment of inertia in the tuck position?

What is the temperature in degrees celsius of a substance with a tempature of 49k