Engineering, 07.11.2019 00:31 cherri22

The hollow tube is pivoted about a horizontal axis through point o and is made to rotate in the vertical plane with a constant counterclockwise angular velocity ω= 3 rad/sec. if a 0.2 lb particle is sliding in the tube toward o with a velocity of 6 ft/sec relative to the tube when the position θ= 300 is passed, calculate the magnitude n of the normal force exerted by the wall of the tube on the particle at this instant.

Answers: 2

Show answers

Another question on Engineering

Engineering, 03.07.2019 14:10

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

Answers: 2

Answer

Engineering, 04.07.2019 18:10

Fluids at rest possess no flow energy. a)- true b)- false

Answers: 3

Answer

Engineering, 04.07.2019 18:10

Apipe with an outside diameter of 15 cm is exposed to an ambient air and surrounding temperature of -20°c. the pipe has an outer surface temperature of 65°c and an emissivity of 0.85. if the rate of heat loss from the pipe surface is 0.95 kw per meter of length, the external convective heat transfer coefficient (h) is: (a) 12.5 w/m"k (b) 18.6 w/mk (c) 23.7 w/mk (d) 27.9 w/mk (e) 33.5 w/mk

Answers: 1

Answer

Engineering, 04.07.2019 18:20

Modern high speed trains do not have perpendicular expansion gaps where rails are joined end-to-end any more they are mostly welded together but what might happen if there was a spell of particularly hot weather that causes inspection of the tracks?

Answers: 1

Answer

You know the right answer?

The hollow tube is pivoted about a horizontal axis through point o and is made to rotate in the vert...

Questions