Все публикации

0:13:28

4.32 Refrigerant 134a enters a well-insulated nozzle at 200 lbf/in.2, 220°F, with a velocity of 120

0:16:40

4.29 Refrigerant 134a flows at steady state through a horizontal tube having an inside diameter of

0:14:46

Three forces act on the bracket. Determine the magnitude and direction θ of F so that the resultant

0:10:41

4.18 Refrigerant 134a enters the evaporator of a refrigeration system operating at steady state at

0:06:14

Express F1, F2, and F3 as Cartesian vectors.

0:12:18

4.110 A tank whose volume is 0.01 m3 is initially evacuated. A pinhole develops in the wall, and air

0:08:13

Determine the magnitude of the resultant force FR= F1+ F2 and its direction, measured clockwise from

0:06:31

The force acting on the gear tooth is F = 20 N. Resolve this force into two components acting along

0:06:05

If F1=30N and F2=40N, determine the angles θ and φ so that the resultant force is directed along the

0:11:52

4.39 Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°F with a velocity of

0:05:46

4.6 If a kitchen-sink water tap leaks one drop per second, how many gallons of water are wasted

0:11:17

4.34 Air with a mass flow rate of 2.3 kg/s enters a horizontal nozzle operating at steady state at

0:07:46

Determine the magnitude and direction θ of FA so that the resultant force is directed along the

0:13:02

6.40 Air contained in a rigid, insulated tank fitted with a paddle wheel, initially at 4 bar, 40°C

0:07:40

If the resultant force acting on the support is to be 1200 N, directed horizontally to the right,

0:13:04

4.24 Refrigerant 134a enters a horizontal pipe operating at steady state at 40°C, 300 kPa, and a

0:06:29

If the resultant force of the two tugboats is 3kN, directed along the positive x axis, determine the

0:09:40

Determine the magnitude of the resultant force and its direction, measured counterclockwise from the

0:12:23

Determine the magnitude of the resultant force FR = F1 + F2 and its direction, measured

0:05:59

6.25 Water within a piston–cylinder assembly, initially at 10 lbf/in2, 500°F undergoes an internally

0:13:12

4.68 As shown in Fig. P4.68, a power washer used to clean the siding of a house has water entering

0:08:11

3.21 As shown in Fig. P3.21 0.1 kg of water is contained within a piston–cylinder assembly at 100°C.

0:09:19

4.36 Nitrogen, modeled as an ideal gas, flows at a rate of 3 kg/s through a well-insulated

0:13:42

4.57 At steady state, a well-insulated compressor takes in nitrogen at 60°F, 14.2 lbf/in.2, with a