Rohan a class 10 student was his mother in her cooking. his mother stressed the importance of copper bottom vessels for cooking and switching off of gas cylinder regulator after the use.
a) what values is shown by his mother?
b) why is rohan's mother so particular of using copper bottom vessel for cooking?
answer fast..

Which articulations allow for greatest range of motion?

The number of passengers who arrive at the platform of a subway station for the 10 am train is a random variable with a mean of 120 and a variance of 16. find the lower bound of the probability that there will be between 100 and 140 passengers (round off to second decimal place).

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.