So last night my ex boyfriends was texting me so i answer and ask him hey he broken up with me and he said just stop

What is the mass defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

What type of electromagnetic radiation has a shorter wavelength than blue light

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's