Centers of two small particles charged particles are separated by a distance of 1.2x10-4 meter. the charges on the particle are 8x10-19 coloumb, respectively. calculate the magnitude of the electrostatic force between these two particles. , i need to get a good grade for physics.

What can be found in every skeletal muscle? a. nerves, bones, cartilage, and connective tissue b. tendons, cartilage, nerves, and blood vessels c. muscle fibers, nerves, connective tissue, and blood vessels d. tendons, nerves, blood vessels, and bones

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?

True or false: the revolution of the earth creates day and night as it rotates around the sun