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A Carnot engine has 40 gram of Helium gas as its working substance. It operates between two reservoirs of temperatures T1= 400 Celsius and T2= 60 Celsius. The initial volume of the gas is V1= 2e-2 m3 and the volume after isothermal expansion is V2= 4e-2 m3 and the volume after the subsequent adiabatic expansion is V3=5e-2 m3.
a) Compute the work generated by this engine during one cycle.
b) Find the heat absorbed and the waste heat ejected during one cycle.
A 4.00 {rm A} current runs through a 12 gauge copper wire (diameter 2.05 {rm mm}) and through a light bulb. Copper has 8.5 times 10^ {28} free electrons per cubic meter.
When in orbit, a communication satellite attracts the earthwith a force of 19.0 kN, Find the satellite's altitude above the earth's surface
You are a space traveller and you land on the surface of a new planet. You decide to drill a tunnel through the center of the planet to the opposite side of the planet. How long will it take to make it to the other side of the planet
Two parallel plates are connected to a 40 V battery. The distance among the two plates is 24 cm. What is the magnitude of the electric field among the two plates?
A block of unknown mass is attached to a spring with a spring constant of 5.00 N/m and undergoes simple harmonic motion by amplitude of 11.0cm. When the block is halfway among its equilibrium position and the end point, its speed is measured to be 28..
A laser has a 200-W, 1.0 mm^2 cross-sectional area beam. find the amplitude of the electric and magnetic fields
A piece of wood is 6.00 m long, 0.260 m wide and 0.060 m thick. Its density is 600kg/m cubed. What volume of iron ( P iron = 7.8 x 10 cubed kg/m cubed) must be fastened underneath the wood to sink it so that the top surface of the wood is just even w..
A grinding wheel in the shape of a solid disk is0.240 {\rm m} in diameter and has a massof 2.50 {\rm kg}. The wheel is rotating at2050 {\rm rpm} about an axis through itscenter. What is its kinetic energy?
The image produced by a concave mirror is located 25 cm in front of the mirror. How far in front of the mirror is the object located
The rate of flow of water through a horizontal pipe is 1.98 m3/min. Determine the speed of flow in m/s at a point
A rectangular plate is rotating with a constant angular speed aboutan axis that passes perpendicularly through one corner, as thedrawing shows. The centripetal acceleration measured atcorner A is n times as greatas that measured at corner B.
The potential difference across a typical cell membrane is about 76 mV. How much work is done on a singly ionized potassium ion moving through the membrane
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