Light with a wave length of 5*10^-7 m strikes a surface that requires 2 ev to eject an electron. Calculate the energy, in electron volts, of one incident photon.
The MURL contract for deed requires homebuyers to make a monthly payment equivalent to 25 percent or more of their gross monthly income. (This is generally a good deal, considering that recipients of Section 8 federal housing assistance pay 30 percent of gross monthly income.)
State laws sometimes require that the deed indicate the residence of the grantor by town, city, county, and state. In order for title to property to pass, a deed must specify the grantee with sufficient certainty to distinguish that individual from the rest of the world.