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The warm source of a Carnot cycle has a temperature off 100 C, while the cold source consists of melting ice. When the cycle operates for 1 hour it is observed that 1 metric ton of ice has melted. Calculate (a) the heat absorbed in the cycle from the warm source and (b) the heat given away in the cycle to the cold source. The latent heat of fusion at 100 C is 0.3337 x 10^6 J/kg.
An astronomical telescope is designed with an overall magnification of 80x. The objective has a focal length of 98.0 cm. What should be the focal length of the eyepiece
a thin converging lens is found to form an image of a distant building 24 cm from the lens. if an object is placed 16 cm from the lens, how far from the object will the image be
Steam is expanded from 12.5 MPa and 900 degrees Celsius to 0.30 MPa, 400 degrees Celsius in an adiabatic turbine. Determine the isentropic efficiency of this turbine
A revolving door consists of four rectangular glass slabs,with the long end of each attached to a pole that acts as the rotation axis. Find the rotational inertia of the entire door
A painter (m=70 kg) is standing a distance of 0.6 m from the top of a ladder (mass 40 kg and length 2.5 m). Find the conditions for static equilibrium of the ladder with the painter on top
A simple magnifying glass can focus sunlight enough to heat up paper or dry grass and start a fire. what is the intensity of the image of the Sun
Determine the maximum energy lost in the collision.
A tennis player standing 12.6 m from the net hits the ball at 2.79° above the horizontal. how fast was the ball moving when it left the racket
Air at 1 ATM & 80 °C is fed to a chiller. The air contains water vapour at 15 degrees of superheat. The air stream is chilled to condense 50% of the water in the feed. At what temperature must the chiller operate if the product streams are also at..
For a damped oscillator with a mass of 360 g, a spring constant 110 N/m and a damping coefficient of 87.00 g/s, what is the ratio of the amplitude of damped oscillations to the initial amplitude at the end of 28 cycles.
A constant force, F = (4.63, ?3.79, 1.96) N,acts on an object of mass 18.9 kg, What is the total work done by this force
q1. two small charged metal spheres a and b are situated in a vacuum. the distance between the centres of the spheres
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