Whats the difference between relative order and an absolute date.

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?

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.

Why is the melting of ice a physical change ?