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A Carnot engine is operated between two heat reservoirs at temperatures of 505 K and 300 K.
a. If the engine receives 6.55 kJ of heat energy from the reservoir at 505 K in each cycle, how many joules per cycle does it reject to the reservoir at 300 K ?
b. How much mechanical work is performed by the engine during each cycle?
c. What is the thermal efficiency of the engine?
light falls on a pair of slits 0.00198 cm apart. the slits are 84.2 cm from the screen. the first-order bright line is
Early one October you go to a pumpkin patch to select your Halloween pumpkin. Find what work you do on the pumpkin as you lift it from the ground and find how much work do you do on the pumpkin as you carry it from the field
An object with a mass of 5.10 kg is attached to the free end of the lightstring wrapped around a reel radius R=0.25 m and mass 3kg the reel is a solid disk, free to rotate in a vertical plane about the horizontal axis paasing through its center th..
A car travels with an initial velocity of 2 meters per second, at initial position of 0 meters with an accerleration of 2 meters per second at time of 2.0 seconds
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A bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength of the sound the bat makes. what is the smallest insect a bat can detect
Early one October you go to a pumpkin patch to select your Halloween pumpkin. Determine how much work do you do on the pumpkin as you carry it from the field
What fractional increase in tension of one wire will lead to the occurrence of 2 beats/s when both wires oscillate simultaneously.
What percentage of the neutrons would not interact if the concrete slab were made 45.0 cm thick? How many centimeters thick would the concrete need to be so that 12.0 per cent of the neutrons are transmitted.
A 0.51 kg mass vibrates according to the equation x = 0.43 cos 8.37t, where x is in meters, and t is in seconds. (a) Determine the amplitude. m (b) Determine the frequency. Hz (c) Determine the total energy. J (d) Determine the kinetic energy and pot..
A 2.40cm × 2.40cm square loop of wire with resistance 1.10×10?2? has one edge parallel to a long straight wire. calculate the current in the loop
Fleas are notorious jumpers, reaching heights of nearly 20 cm, roughly 130 times their own height. Assuming that the flea acquires its initial velocity in leaving the ground over a distance of half its height, find the average acceleration the fle..
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