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A classroom window made of glass is 1cm thick. The window is 2m square . If the thermal conductivity of glass k = 0.96 w/(mK) and the temperature is 21C inside and 32C outside, find the head flux and the temperature distribution along the thickness of the window. What would be the head flux and the temperature distribution along the thickness of the window if the window was made of gold? (Gold thermal conductivity is k = 310 w/(mK) ).please show me work
A rock is dropped from a sea cliff, and the sound of it striking the ocean is heard 2.8 later. If the speed of sound is 340 , how high is the cliff
A 23--long log of irregular cross section lies horizontally, supported by a wall at one end and a cable attached 4.0 from the other end, Find the log's center of gravity
A 1.050 kg air-track glider is attached to each end of the track by two coil springs. Find the effective spring constant of the system
A block of mass M = 1.00 kg contains a coiled spring and a ball of mass m = .250 kg. The spring is released when the ball block system is at rest on the edge of a frictionless plane inclined 20 degrees from the horizontal. The ball, initially 2.00..
What is the size of the smallest vertical plane mirror in which a 10 tall giraffe standing erect can see her full-length image? (Hint: Locate the image by drawing a number of rays from giraffe's body that reflect off the mirror and go to her eye.
A capacitor is placed parallel across a resistive load in a circuit. C=0.858*10^-6F and R=204 ohms. What fraction of the current goes through the capacitor
What is the resistance of a NichromeTM wire at 0.0 if its resistance is 108.9 at 12.5? The temperature coefficient of resistivity for NichromeTM is 4.00×10?4
A spring stretches 0.150 when a 0.300 kg mass is hung from it. The spring is then stretched horizontally 0.100m from its equlibirum point and released. determine maximum acceleration of mass
If an experiment were done with a bow and arrow, when shooting the arrow what motion would it make. A diagram would be helpful. What causes the arrow to move horizontal, and what causes the arrow to move vertical? And why do the 2 motions (horizontal..
A steel rivet 1.50 cm long and 1.5 mm radius has one end attached to a wall. If the other end is subjected to a shearing force of 6.0 × 104 N, what is the downward deflection
A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. What is the mass of the wheel
Air traffic controllers use radar to keep track of the location of aircraft.
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