Aspace explorer is moving through space far from any planet or star. he notices a large rock, taken as a specimen from an alien planet, floating around the cabin of the ship. should he push it gently, or should he kick it toward the storage compartment? explain.

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?

Argon, neon, and xenon are examples of

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?