1. a piece of metal with a mass of 147 g is placed in a 50-ml graduated
cylinder. the water level rises from 20 ml to 41 ml. what is the density
of the metal?

How much energy moves onto the next level, in an energy pyramid

Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?

24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm