2. How long must a 400 W electrical engine work in order to produce 300 kJ of work?

Free runners jump long distances and land on the ground or a wall. how do they apply newton’s second law to lessen the force of impact?

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?

When is a current produced? when the terminals of an electrochemical cell are connected by a wire if the electric circuit is opened in an electrochemical cell if the electrolyte is removed from an electrochemical cell when the electrodes are reversed in an electrochemical cell