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A gasoline engine in a large car takes in 10,500J of heat and delivers 2450J of mechanical work per heat cycle. The heat energy is converted by burning gasoline. The conversion rate, the heat of combustion is 5 x 104 J/g.
(a) What is the thermal efficiency of the engine?
(b) How much heat is returned to the cold reservoir?
(c) How much gasoline is burned during each cycle?
(d) If the engine goes through 30 cycles per second, what is the power output of the engine?
(e) How much gasoline is burned per hour?
The velocity vs. time curve of an object is an increasing straight line. What is the acceleration of the object
An electron and a 140-g baseball are each traveling 200m/s measured to an accuracy of 0.095%, Calculate the uncertainty in position of the baseball
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A source produces sound waves of time period .001 second and wave length of 20 cm. find the time taken by sound waves to travel a distance of 800 metres.
A mica sheet 0.969 ?m thick is suspended in air. In reflected light, there are gaps in the visible spectrum at 460, 525, Calculate the index of refraction of the mica sheet
Determine the minimum thickness of a soap film (n= 1.80) that will result in constructive interference of a specific red line with wavelength 610 nm
In extremely cold weather conditions where the inside thermostat is set to 27 C and the outside temperature is -20 C, your 1200 square ft house might lose heat through the walls at a rate of 4000 W.
A 4 kg mass is hung from a string which is wrapped around a cylindrical pulley (a cylindrical shell). If the mass accelerates downward at 4.90 m/s2, what is the mass of pulley.
A vector is given by Rvec = 1.70 ihat + 2.30 jhat + 2.99 khat. Find the magnitude of Rvec
A chimp jumps up from a trampoline and lands on the ground, 1.2 meters below. the total time taken was .095 secons. A. what is the initial velocity B. what is the final velocity C. what is the maximum height above the ground please show work so i ..
An air puck of mass m1 = 0.32 kg is tied to a string and allowed to revolve in a circle of radius R = 1.1 m on a frictionless horizontal table. What is the horizontal force acting on the puck
Consider an XY coordinate plane. Wire A is placed along the y-axis at x=0 and wire B is placed parallel to wire A at x= 0.240 m, Find the magnitude of the magnetic field at x=0.380 m
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