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A diesel engine performs an amount of mechanical work equal to 2800Jand discards an amount of heat equal to 4800J each cycle.
a) How much heat must be supplied to the engine in each cycle?
b) What is the thermal efficiency of the engine?
what is the voltage across the capacitors?
In a double-slit interference experiment, the wavelength is 477 nm, What is the linear distance between adjacent maxima on the screen
You have to move a 100kg refrigerator up a 20 degree loading ramp into the back of a pickup truck. Determine the acceleration up the incline
A violinist places her finger so that the vibrating section of a 1.20 g/m string has a length of 40.0 cm, then she draws her bow across it. A listener nearby in a 20 ^circ {rm C} room hears a note with the wavelength of 30.0 cm. What is the tensio..
a 1cm-tall object placed 20cm front of a concave mirror produces a virtual image that is twice the height of the object. what is the length of the mirror
On a spacecraft, two engines are turned on for 730 s at a moment when the velocity of the craft has x and y components of velocity v0x = 4040 m/s, Find the x and y components of the craft's acceleration
How high from the surface of the earth must an object be raised, What minimum speed is needed by the object to ascend to this height
what was the initial speed given to the rock. A light plane is headed due south with the speed of 154 km/h relative to still air. After 1.06 hour, the pilot notices that they have covered only 127km and their direction is not south but southeast (4..
In a series R-L-C circuit, R = 320? , XC = 260? and XL = 600? . The average power consumed in the resistor is 60.0W. What is the rms voltage of the source
Calculate the buoyant force of water on a completely submerged sample volume of 3.4 meter^3.
An alpha particle (q = +79e, m = 6.68 x10^-27kg) is fired from a distance of 10 cm at a gold nucleus (q = +79e). find the change in electric potential for the alpha partical
A roller coaster car traveling at a constant speed of 20.0 m/s on a level track comes to a straight incline with a constant slope, How far has the car traveled up the incline at this time
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