Asap through which medium will sound waves travel the slowest? a. pool b. helium filled balloon c. steel pipe d. wooden table

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?

What are the similarities & differences between a thermistor and a light dependent resistor in physics?

The energy equivalent of the rest mass of an electron is