What is the common size for air mass? a. 600 km or less across b. 1600 km or more across c. 16000 km or more across d. 160000 km or more across

State the right hand rule of the direction of magnetic field in a conductor carrying current

If 2 moles of co_2 at 2l and 500k are expanded reversibly to 20l, more work can be obtained from an adiabatic process than from an isothermal process. is the above statement true or false?

Asystematic approach to problem solving is called a (an)