The work function (energy needed to remove an electron) of gold is 5.1 ev. two pieces of gold (at the same potential) are separated by a distance l. for what value of l will the transmission probability for an electron to cross from one to the other be t ≈ 10-3? assume that g = 1 in the formula for the tunneling probability.

If steel is more dense that lake water, why can a boat float

Marcella is a four-year-old girl who is a victim of emotional child abuse. based on the child and family services improvement and innovation act of 2011, which action should the government take for marcella? a. the state should arrest marcella’s abuser. b. the state should find a home for marcella as soon as possible. c. the state should enforce stricter laws in the area where marcella resides. d. the state should provide medical assistance to marcella.

A1.5m wire carries a 2 a current when a potential difference of 52 v is applied. what is the resistance of the wire?