If a ball goes from rest to 15m/s in .41s whats the acceleration

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Which of the following are used in an electrochemical cell? a. electrodes b. electrolyte c. terminals d. all of the above

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.