Select the correct answer. find the tension t2 of the box hanging from the rope if 1 = 25°, 2 = 65°, t1 = 60.58 newtons, and w = 143.4 newtons. a. 95.6 newtons b. 130 newtons c. 143.4 newtons d. 158.2 newtons

Air initially at 0.75 bar, 1000 k, and occupying a volume of 0.12 m^3 undergoes two processes. process 1-2: the air is compressed isothermally until the volume is halved. process 2-3: the air undergoes a constant pressure process until the volume is halved again. assume ideal gas behavior. a) determine the mass of the air, in kg. b) the work and the heat transfer for each of the two processes, in kj. (100 kj = 1 bar . m^3)

What occurs during a combustion reaction

When a light bulb shines, it gives off light energy and energy. a. heat b. potential c. chemical d. electrical