A gas is compressed in a piston–cylinder assembly from 푝-= 2 bar to 푝.= 8 bar, 푉.= 0.02 푚:in a process during which the relation between pressure and volume isdefined as푝푉-.;=constant. The mass of the gas is 0.2 kg. The specific internal energy of the gas increases by 50 kJ/kg during the process. Kinetic and potential energy changes are negligible. For the gas as the system, determine the work, in kJ, and the heat transfer, in kJ.

Avoltage source vs = 10 v is in series with a resistor of 10 kohm. if the source transformation theorem is applied, what will the value of the current source be in ma ?

Ablock of mass m = 2.5 kg is attached to a spring with spring constant k = 790 n/m. it is initially at rest on an inclined plane that is at an angle of 28 degrees with respect to the horizontal, and the coefficient of kinetic friction between the block and the plane is k = 0.14. in the initial position, where the spring is compressed by a distance of a = 0.18 m, the mass is at its lowest position and the spring is compressed the maximum amount. take the initial gravitational energy of the block as zero. b) if the spring pushes the block up the incline, what distance, l, in meters will the block travel before coming to rest? the spring remains attached to both the block and the fixed wall throughout its motion.

What is a carrier wave and how does it affect what you hear on the radio