What objects in the universe give out their own light?

A ball is thrown downward with an initial speed of 7m/s. the balls velocity after 3 seconds is m/s

When a sealed thermos bottle full of hot coffee is shaken what are the changes in the temperature of the coffee and the internal energy of the coffee?

If performing an experiment in the field, you should

How can coprolites tell scientists what a dinosaur might have eaten?

True or false Scientific endeavor is driven by both simple curiosity as well as societal demands

Could a nucleus that has one proton but no neutrons exist?

Which physical quantities has the unit kg·m·s-1?

Can an object travel at the speed of light? Why or why not?

Determine the amount of potential energy of a 5 Newton's book that is moved to three different shelves on a bookcase. The height of the shelves is 1.0 meter, 1.5 meter, and 2.0 meter

Which atom is involved in giving your heart energy to beat? carbon gold oxygen iron