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Why is a good conductor of electricity also a good conductor of heat? 1. For both electricity and heat, the conduction is via electrons, which in a metal are loosely bound, easy flowing, and easy to start moving. 2. Bound electrons do not exist in materials that are good conductors for both heat and electricity. 3. For both electricity and heat, the conduction is via atoms, which in a metal are loosely bound, easy flowing, and easy to start moving. 4. They all carry energies for both electricity and heat. 5. If there is a current through a conductor, there should also be heat produced by resistance.
What is the capacitance of this capacitor. Estimate the terminal speed of a wooden sphere (density 0.810 g/cm3) falling through air, if its radius is 8.00 cm and its drag coefficient is 0.5.
A spacecraft is in orbit around a planet. The radius of the orbit is 2.9 times the radius of the planet (which is R = 71474 km). What is the period of the spacecraft's orbit
What was the bullet's speed as it left the barrel. A 1kg block rests against one end of a horizontal spring which is compressed by 10 $cm$.
The maximum transverse acceleration of a point at the middle of the segment is 8800 m/s^2 and the maximum transverse velocity is 3.50m/s.
Gold, which has a mass of 19.32 g for each cubic centimeter of volume, is the most ductile metal and can be pressed into a thin leaf or drawn out into a long fiber, what is the area of the leaf in square meters
A 2.96 mA beam of electrons moving at 2.09x106 m/s enters a region with a sharply defined boundary, Find the transmitted and reflected currents
What is the similarity theorem of Fourier Transforms. Make up an example based on the boxcar function. Sketch your example and write the mathematical formulas for that example.
A passenger in a roller coaster ride experienced weightless when s/he was at the top of the loop. If the loop has radius 16.0 m, what is the linear speed at the top
An iron wire with a diameter of 1.2 mm has a uniform electric field of 0.35 V/m imposed along its entire length. What is the current density in the wire
The radius of the Earths very nearly circular orbit around the sun is 1.5x10^11 m, find the magnitude of the earth velocity as it travels around the sun
find the moment of inertia about the z axis of the hemispherical shell of z= (2^2-x^2-y^2)^(1/2), derive the unit normal vector for surfaces given by y=g(x,z_ x=h(y,z)
A Hooke's-law spring of spring constant 4900 N/m is compressed by 0.02 m. How high does the bullet go
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