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the 2 Mg car increases its speed uniformly from rest to 25 m/s in 30s up the inclined road. determine the maximum power that must be supplied by the engine, which operates with an efficiency of 0.8. also, find the average power supplied by the engine.
a) What is the temperature and state of the steam in the pipe? b) What is the quality of the steam in the pipe?
the lower end of the 30 kg slender rod is displaced a small amount and released from the rest. determine the natural frequency of vibration. the springs have stiffness of 500 N/m and they are stretched when the rod is hanging vertically.
An air bubble rises from the bottom of a well where the temperature is 25°C, to the surface where the temperature is 27°C. Find the percent increase in the volume of the bubble if the depth of the well is 5 m. Atmospheric pressure is 101,528 Pasca..
Evaluate thermal efficiency of the cycle
Use steam tables to compute the total volume, total enthalpy, and total entropy of 1kg of water at 100o C, half by weight of which is steam and the remainder is liquid water.
Volumetric Compression Ration and Mean Effective Pressure of a Diesel Engine, A diesel engine has air before compression at 280 K and 85 Kpa. The highest temperature is 2219 K and the highest pressure is 6 MPa.
The wheel of a crane lift is rolling on a flat rail. The radius of the wheel is 4 in, the contact length and force are 2.5 in and 1 ton respectively, and E = 30 MPa and ν = 0.3 for both parts. Determine (a) the maximum contact pressure, (b) the wi..
Kinetics of Particles : Newton's Second Law, Determine the maximum theoretical speed that may be achieved over a distance of 50 m by a car starting from rest
Determine an expression for the number of cycles to failure, Nf if the initial crack size is a0. State any assumptions you make.
a uniform rectangular cabinet having dimensions shown and mass m=50kg is placed onto a cart of mass 10 kg as shown. no slipping between cabinet and cart. determine the maximum allowable force P so that the cabinet does not tip.
A cylindrical drill with radius r1 is used to bore vertically a hole through the centre of a sphere of radius r2.
Sketch the T-s diagram for the cycle (put labels and appropriate information)
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