In a wet type of voltaic cell, what is electrolyte ?

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

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

What is the rate of 12 liters of water moving through a water hose in 4.0 minutes?