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A 4.4 cm tall object is placed 27 cm in front of a convex spherical mirror. It is desired to produce a virtual image that is upright and 2.9 cm tall. Find the distance, di, of the image (cm), the focal length of the mirror (cm), and the radius of curvature of the mirror (cm).
A 120-g mug at 21C is filled with 210g of coffee at 91C. suppose all of the heat lost by the coffee is transferred to the mug, what is the final temperature of the coffee? The specific heat capacity of the mug is 7.8 X 10^2 J/(Kg C)
The energy released by each fission within the core of a nuclear reactor is 2.00 x 102 MeV. Determine the power (in watts) that the reactor generates
Calculate the power required by an object to lift another object
A 8000-kg car is traveling at 1.7 m/s along a horizontal road when the brakes are applied. How much kinetic energy does the car lose
As part of a safety investigation, two 1900 kg cars travelling at 19 m/s are crashed into different barriers. Determine the average forces exerted on (1) car that hits a line of water barrels and takes 1.7 s to stop, and (2) car that hits a concre..
A cylindrical storage tank has a radius of 1.04 m. When filled to a height of 3.64 m, What is the density of the solvent
A 0.39 V potential di?erence is maintained across a 1.7 m length of tungsten wire that has a cross-sectional area of 0.85 mm2, What is the current in the wire
Monochromatic light of wavelength 500 nm is incident normally on a diffraction grating. how many TOTAL number of maxima can be seen
a charged plate holds 3nC of charge equally distributed on the plates surface area. find the constant electric field near the surface of this plate
A beam of photons that have a wavelength equal to 6.8pm is scattered by electrons initially at rest. What is the change in wavelength of the photons
The isotope ^(99)Tc* is commonly used in several different types of medical imaging procedures. find the change in the nuclear mass after emission of the gamma ray
Two spheres are cut from a certain uniform rock. One has radius 4.30cm. The mass of the other is six times greater. Find its radius.
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