Most people like to go outside on a sunny day, but too much sun exposure can cause sunburns as well as long term health problems, such as eye damage or skin cancer. how do humans protect themselves from too much sun exposure?

Given the following information: mass of proton = 1.00728 amu mass of neutron = 1.00866 amu mass of electron = 5.486 × 10^-4 amu speed of light = 2.9979 × 10^8 m/s calculate the nuclear binding energy (absolute value) of 3li^6. which has an atomic mass of 6.015126 amu. j/mol.