The light right-angle boom which supports the 400 kg cylinder is supported by three cables and a ball and socket joint at o attached to the vertical x-y surface. determine the reactions at o and the cable tensions.

An object moves from the position +34m to the position -15m in 15 seconds. what is it's total displacement? what is it's average velocity?

Aphysical change is a change in the size, shape,, or stafe of matter true or false

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)