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An ice-making machine inside a refrigerator operates in a Carnot cycle. It takes heat from liquid water at 0.0^{ C} and rejects heat to a room at a temperature of 24.6^\C. Suppose that liquid water with a mass of 82.7kg at 0.0^ C} is converted to ice at the same temperature. Take the heat of fusion for water to be L_{ f}\; = 3.34×105J/kg . Part A How much heat |Q_{\rm H}| is rejected to the room?
A very long, straight solenoid with a cross-sectional area of 6.15 is wound with 30 turns of wire per centimeter, compute the average induced emf in the secondary coil
Finally a thin rod of mass 7 kg is added between the two particles Since the particles are moving perpendicular to the line separating them, What the angular frequency of rotation of the rod + particles system
A horizontal vinyl record of mass 0.10 kg and radius 0.10m rotates freely about vertical axis through its center with and angular speed of 4.7 rad/s. What is the angular speed of the record immediately after the putty sticks to it
A refracting telescope has an objective and an eyepiece that have refractive powers of 1.25 diopters and 300 diopters, respectively. Find the angular magnification of the telescope
A long solenoid of r =1cm and lnght l=1m is inserted into another long solenoid of radius r=3cm, Find the mutual inductance of the two solenoids
A wooden cube of side 0.30 m has density of 700 kg/m^3 and floats partially submerged in seawater(density = 1025 kg/m^3). what is the total mass of the cube
in a hydraulic system comprised of a reservoir and a pump which is 4 ft above the oil level what would be the pressure
Diffracted light from a circular aperture is viewed on a distant viewing screen, Find the radius of the aperture if the wavelength of light is 680 nm
In a physics lab, light with a wavelength of 560nm travels in air from a laser to a photocell in a time of 16.9ns, What is the wavelength of the light in the glass
A pendulum of length 1.5 m swings back and forth in a friction free laboratory environment. The pendulum is 1.4 m above the floor at the high point of its swing and 1.3 m above the floor at the low point.
A 6.70 -uC particle moves through a region of space where an electric field of magnitude 1300 N/C points in the positive x direction, find the components of the particle's velocity
1. explain what is the difference between 10 dbnbsp and 20db?2. an automatic focus camera is able to focus on objects
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