Avertical wire carries current in the upward direction. an electron is traveling parallel to the wire. what is the angle α between the velocity of the electron and the magnetic field of the wire?

Abeam of electrons with of wavelength of 7.5 x 10-6 m is incident on a pair of narrow rectangular slits separated by 0.75 mm. the resulting interference pattern is projected onto a screen 10.0 m from the slits. what is the separation of the interference maxima in the resulting interference pattern?

Zeros that follow non-zeros numbers and are also to the right of a decimal point are significant

Which of the following elements is in the same period as phosphorus? a. carbon c. nitrogen b. magnesium d. oxygen select the best answer from the choices provided a b c d