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A particle which movies in a two-dimensional curvilinear motion has coordinates in millimetres which vary with time t in seconds according to x=5t2 +4 and y=2t3 + 6. For time t =3s, determine the radius of curvature of the particle path and the magnitudes of the normal and tangential accelerations.
a bicycle rider rides from home along a highway and back along the same road in such a way that her distance from home
1. write out the differences betweena close system and open systemgive one example and state what type of system it isb
An adiabatic piston cylinder contains 1 kg of R-134a. Initially the conditions inside the piston are 200 kPa and 0 degrees C. An electric heater inside the device runs with constant voltage of 110 V and a constant 0.1A of current for one hour.
Helium gas is contained in a rigid vessel of 0.5 m3 at 500 kPa. The gas is agitated violently by a stirrer that transfers 250 kJ of work to the gas. Assuming that the system undergoes an adiabatic process, determine the final pressure of the gas. Ass..
A piston-cylinder filled with air receives 10 kJ of heat and expands, doing 5 kJ of work. What is the change in internal energy of the air?
For H2O, determine the specified property at the indicated state. Locate the state on a sketch of the T-v diagram. (A) T=140 degree Celsius, v=.5 m^3/kg. Find p, in bar (B) p=30 MPa, T=100 degree Celsius. Find v, in m^3/kg (C) p=10 MPa, T=485 degree ..
in early development of gas turbine engines the pressure ratio was low the isentropic efficiency of components was low
Determine the width w of the link BC needed so that the structure with load P = 20 kips has a factor of safety equal to 2.5. Link BC is ½ in thick and has a 85 ksi ultimate strength in tension.
Determine the crack growth for cycle #3 using Wheeler's retardation model (m=2)-finite width correction factor for SIF
an air-conditioned room requires 30 m3 min of air at 1.013 bar 20 degree c 52.5 rh. the steady flow conditioner takes
the cylinder and hub have a total mass of 30 kg and a radius of gyration of 0.5 m. assume no slippage. determine the
a finned-tube heat exchanger has to be designed to transfer heat from the humidified hotair to cold water. it is
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