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One end of a 29 cm long aluminum rod witha diameter of 2.0 cm is kept at 460°C,and the other is immersed in water at 22°C. Calculate the heat conduction rate along the rod.W
A point on the rim of a 0.55 m diameter grinding wheel changes speed uniformly from 12 m/s to 20 m/s in 8.3 s. What is the average angular acceleration of the wheel
A cannon, placed in the valley, fires a shell at 31 degree with respect to the horizontal line. Calculate the range of the shell
A 5000 kg helicopter accelerates upward at 0.50 m/s2 while lifting a 2000 kg car. What is the lift force exerted by the air on the rotors? Evaluate the tension in the cable that connects the car to the helicopter?
The central star of a planetary nebula emits ultraviolet light with wavelength 104nm, What is the first-order diffraction angle
The frequency of light emitted by a toaster is 2.5 GHz. How many toaster photons are required to heat the water
The velocity-time graph of part of a cyclist's trip consists of a straight line between v = 18.0 m/s at t = 13.0 s and v = 0 at t = 25.0 s
A child slides down a playground slide; the coefficient of the kinetic friction is uk=0.15, with what speed does she exit the slide
Please show steps: Hydraulic engineers in the United States often use, as a units of volume of water, What volume of water, in acre-feet, fell on the town
On a playground slide, a child has potential energy that decreases by 1000 J while her kinetic energy increases by only 900 J. How much energy is missing and where did it go
A charged isolated metal sphere of diameter 16.0 cm has a potential of 7000 V relative to V = 0 at infinity. Calculate the energy density in the electric field
The image behind a convex mirror (radius of curvature = 66.0 cm) is located 25.0 cm from the mirror. what is the magnification of the mirror
A man strides across a bed of embers. Assume the glowing charcoal is covered with a thin layer of ash 0.50 mm thick and is at a temperature of 650C. The thermal conductiviity of ash and charcoal is 1.5 W/ (mxK). (a) Estimate the heat transferred t..
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