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A window has a glass surface of 1.4 103 cm2 and a thickness of 4.0 mm.
(a) Find the rate of energy transfer by conduction through the window when the temperature of the inside surface of the glass is 70°F and the outside temperature is 90°F.
a 120 g copper calorimeter cup contains 220 cm3 of water and 35 g of ice all in thermal equilibrium. a 185 g piece of
The interior of a refrigerator has a volume of 0.600 m3. The temperature inside the refrigerator in 282 K, what is the mass of air inside the refrigerator
Estimate the electric field at a point 2.40 cm perpendicular to the midpoint of a uniformly charged 2 m-long thin wire carrying a total charge of 4.10 microC.
Sound with a frequency 650 HZ from a distant source passes through a doorway 1.10 m wide in a sound absorbing wall. Find the number and angular directions of the diffraction minima at listening positions along a line parallel to the wall.
A sample of wood from an archaeological excavation is dated by using a mass spectrometer to measure the fraction of 14C atoms. What is the wood's age
The cheetah can reach atop speed of114km/h (71mi/h). While chasing its prey in a short sprint, find the cheetah's average acceleration during the short sprint
what is the kinetic energy of a ball of mass 16.1 kg at the apex (highest point) of its trajectory, if it is thrown with an initial speed of 45 mph
a massive ring radius a and mass m lies on the xy plane. calculate the force f on a test mass m at position z on
a charge q is placed on parallel-plate capacitors of area l x l and plate seperation d. the capacitor is then filled
Please show how you got the answer, thanks! At the top of a hill with slope angle 32o a snow sled is moving at 4 m/s. how fast will the sled be traveling at the bottom
The rms speed of the molecules in 1.5g of hydrogen gas is 1800m/s . A:What is the total translational kinetic energy of the gas molecules, what is the rms speed of the molecules
A uniformly charged plastic disk has a radius of 0.440 m. At what distance from the center along the central perpendicular axis is the magnitude of the electricfield equal to one-half the magnitude of the field at the center ofthe surface of the disk..
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