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A particular engine has a power output of 4.27 kW and an efficiency of 22.2%. The engine expels 7236 J of energy as heat in each cycle.
A. Find the energy absorbed in each cycle.
B. Find the time for each cycle.
A 12-V battery causes a current of 0.85A through a resistor. How many joules of energy does the battery lose in a minute
For no apparent reason, a poodle is running at a constant speed of 3.40 m/s in a circle with radius 2.8m. Let v1 be velocity vector at time t1, and let v2 be the velocity vector at time t2.
Consider a region of space with volume 80 mm3. Suppose the energy stored in the electric field of that particular region of space is 35 J. What is the average electric field strength in this region?
An electron and a proton move on concentric circular path in the plane of your paper, in a magnetic field that is perpendicular to the plane and is oriented towards you. Which particle follows the smaller circle
Describe an experiment to measure the molecular weight Mw and the second viral coefficient B of a macromolecules in solution using osmotic pressur. Show how you would plot the experimental data.
A 500 kg vehicle is cruising down the highway at 30 m/s when the driver creates an average force of 700 N by stepping on the gas. How much work was done by the vehicle during the .50km of acceleration
question1two boats each capable of moving in still water at a constant velocity v 6 ms place out to cross a river of
Consider a book of mass 10 kg on a frictionless incline that makes an angle of 40? with the horizontal. Find the acceleration of the book down the incline
On an essentially frictionless, horizontal ice rink, a skater moving at 4.1 m/s encounters a rough patch that reduces her speed by 49% due to a friction force that is 26% of her weight. find the length of this rough patch
A jogger accelerates from rest to 5.87 m/s in 3.53 s. A car accelerates from 21.3 to 34.7 m/s also in 3.53 s. (a) Find the magnitude of the acceleration of the jogger. (b) Find out the magnitude of the acceleration of the car. (c) How much further..
A mass of 0.25 kg is attached to a horizontal spring with a spring constant of 4.0 N/m. Write an expression for the position of the mass as a function of time
A solid cylinder (with a radius of 25cm and a mass of 4.4kg) is rotating counterclockwise with an angular speed of 0.5 revolutions per second just above a flat surface. What is the angular velocity of the cyclinder after .35 seconds slipping
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