About how long ago did our solar system start to form?

A248-g piece of copper is dropped into 390 ml of water at 22.6 °c. the final temperature of the water was measured as 39.9 °c. calculate the initial temperature of the piece of copper. assume that all heat transfer occurs between the copper and the water. remember, the density of water is 1.0 g/m

You are about to open a container of soy milk but notice that there are instructions to “shake well before serving.” the soy milk is most likely a

If a simple machine reduces the strength of a force, what must be increased?