The binding energy of the electron in mercury is 7.22 x 10-19 J. A photon of wavelength 200 nm shines on the metal. Calculate the velocity of the ejected electron in m/s. (KE

Describe how the fermi level changes with donor level, temperature and contact with p and n type semiconductors

Atotal charge of –6.50 µc is uniformly distributed within a sphere that has a radius of 0.150 m. what is the magnitude and direction of the electric field at 0.300 m from the surface of the sphere? a) 2.89 × 105 n/c, radially inward b) 6.49 × 105 n/c, radially outward c) 4.69 × 105 n/c, radially inward d) 9.38 × 105 n/c, radially outward e) 1.30 × 106 n/c, radially inward

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.