In a simple picture of the hydrogen atom, the electron moves in circular orbits around the central proton attracted by the coulomb force. the lowest (n = 1) energy orbit that is allowed for the electron is at a radius of 5.29 × 10–11 m . calculate the magnetic field strength at the proton due to the orbital motion of the electron in the n = 1 state.

Engineers find a new metal that is stronger than steel but much lighter. this material is also significantly cheaper than what is currently used for most aircraft, available in large quantities, and easy to manufacture. the engineers are excited because this new material will lower the costs of buying and operating airplanes for companies. what is probably the best step for the engineers to make next?

Select all that applywhat are some basic resources a family is expected to provide for children? educationclothesspending

Why does lightning travel from clouds to the ground?