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At the instant shown, the rigid body OA rolls counter clockwise without slipping on the fixed horizontal surface, and point O has a velocity 2 m/s to the left and an acceleration of 1 m/s2 to the right. Point O is at the center of the semi-circle region of the rigid body on which it is rolling. Rod AB is attached at point A to rigid body OA. This rod is connected to a cart that rolls on the horizontal surface. Determine: (a) Angular velocity of OA [2 points] (b) Angular acceleration of OA [2 points] (c) Velocity of point A [3 points] (d) Acceleration of point A [4 points] (e) Label the location of the instantaneous center of rod AB on this page. Label it as point C. [3 points] (f) The angular velocity of AB [3 points] (g) The velocity of the cart at B [3 points] Give all answers in vector notation (except (e))
a 5 kg object a and a 10 kg object b undergo an oblique central impact. the coefficient of restitution is e 0.6.
A 7.1cm external diameter, 6m long hot water pipe at 85 C is losing heat to the surrounding air at 15 C by natural convection with a heat transfer coefficient of 40 W/m2 C. Determine the rate of heat loss from the pipe by natural convection in Kw.
steam enters a well insulated nozzle operating at steady state at 1000of and 500lbfin2 and velocity 10fts. at the
measurement of the electrical resistivity of gold wires have indicated that the equilibrium vacancy concentration
suppose that two ergonomists rated 21 different cell phones as to their usability the ergonomist agrees with the
If the deflection of the gae fluid height, h, is 2 inches find the 1) velocity of the jet air and 2) the force exerted on the disk by the air.
in figure below a charged particle moves into a region of uniform magnetic field goes through half a circle and then
explain the operating principles and discuss the significant energy transfer and environmental impacts for nuclear
a piston-cylinder contains 0.1kg of superheated steam at 180 degrees celsius and 5 bars. the pison is frictionless and
1 kg of a gas in a piston-cylinder assembly undergoes a Carnot power cycle for which the isothermal expansion occurs at 800 K. The change in specific entropy of the gas during the isothermal compression, which occurs at 400 K is -25 kJ/kg. K. Determi..
The formula for the coefficient of performance 'COP' for air standard refrigeration cycle when we use cold air properties is not given in the text. Derive the expression for COP as function of the compression ratio similar to how the ideal Brayton..
h2o enters a well-insulated nozzle operation at 1000of 500 psi and a velocity of 10 fts. at the nozzle exit the
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