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A 6 cm diameter rubber ball weighing 5 g is used to plug a 4 cm hole in the base of a tank. The tank is in use and is gradually emptying. At approximately what depth will the ball plug fail by floating up and out of the hole?
Rooms in the lower level of a cruise ship have 30 cm diameter circular windows known as portholes. In rough weather the lower portholes can be momentarily submerged up to 4 m by waves. Determine the instantaneous hydrostatic force in terms of magnitude and position at one of these moments.
An aircraft flap actuator housing made of cast magnesium alloy ZAG3A-T4 with uniaxial yield strength σ Y = 14,000 psi. At the suspected critical point the calculated state of str
Centre of Gravity and Moment of Inertia: - For a uniform plate of mass M, the overall mass may be divided into individual masses M i for which centre of gravity is known as
Drainage of the Railway Track: It is necessary to keep the embankment free from water. This is done by providing side ditches, all along the edge of the embankment, and leadi
Creep: Creep of rails is the forward movement of rails in the direction of dominant traffic over a period of time. Creep is undesirable because it disturbs the gauge of the t
Stress-strain carves for ductile materials: A material is said to be ductile in nature, if it elongates before fracture. One this type of material is mild steel. Shape of stre
a motorcycle is used to stunt show to go over a valley . if the initial speed at A is u m/s, determine a. the minimum U so that the motorcycle reaches the bank at B. b. the veloc
Show that for a flat circular steel plate subjected to uniform pressure on one surface, the maximum stress when the periphery is freely supported is 1.65 times that when the periph
What do you known by Investment casting ? What are main materials used for building the investment pattern ?
Q. Molding methods according to the method of making a mold? Following are the molding methods according to the method of mold making: • Open mold method: the method is su
Explain the several types of pattern allowances with neat sketch. Show the six important - aspects of gating system design. Illustrate briefly their functions.
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