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A real engine has a thermal efficiency of n=1/4 That value is 1/3 the efficiency of a Carnot engine running between the equal temperature reservoirs as the real engine. If TC=100K, find the temperature of the hot temperature reservoir?
When illuminated with light of 600nm (6*10^-7 m), the first dark fringe produced by a single slit lies a distance of 1.4 cm from the center of the screen placed 3.0 m from the slit
A proton and an electron are moving due east in a constant electric field that also points due east. The electric field has a magnitudeof 1.0 x104 N/C. Determine the magnitude of theacceleration of the proton and the electron.
You are given the job of evaluating potential power line systems. What percentage of the power would be dissipated in the low-voltage power line
A recent theory suggests that time may be quantized, and that the quantum, or elementary amount, of time is given by the equation t= h/(mpc^2), where h is blank constant, mp is the portion mass and c is the speed of light. comfirm that this equati..
Asquare loop of wire surrounds a solenoid. The side of the square is0.1 m, while the radius of the solenoid is 0.025 m. The square loop has a resistanceof 30 Ω. The solenoid has 500 turns and is 0.3 m long
A projectile is launched with a speed of 40 m/s at an angle of 60o above the horizontal. Use conservation of energy to estimate the maximum height reached by the projectile
a luminous object is 4.80m from a wall. you are to use a concave mirror to project an image of the object on the wall
A simple pendulum has a period of 2.5 s. What is its period if its length is made four times larger
If the coefficient of kinetic friction between the box and the roof is 0.55, with what speed must you push the box to have it gently come to rest right at the edge of the roof.
At some instant the velocity components of an electron moving between two charged parallel plates are Vx=1.5*10^5 m/s. What is the acceleration of the electron
A gas of 8.00×10^19 atoms or molecules has 1.10 Jof thermal energy. Its molar specific heat at constant pressure is 20.8 J/mol K. What is the temperature of the gas?
1. A ship has a top speed of 3.0 m/s in calm water. The current of the ocean tends to push the boat at 2.0 m/s on a bearing of due South. What will be the net velocity of the ship if the captain points his ship on a bearing of 55° North of W..
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