Sodium decays by beta decay. Part of the nuclear equation is shown below. Fill in the blank with a number.
11 Na → _je+ 24 Mg

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

Which of these metals are magnetic?

You add 800 ml of water at 20c to 800 ml of water at 80c what is the most likely final temperature of the mixture ? a. 100c b. 60c c. 25 c d.50c