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In a particular region of Earth's atmosphere, the electric field above Earth's surface has been measured to be 144 N/C downward at an altitude of 240 m and 177 N/C downward at an altitude of 390 m. Calculate the volume charge density of the atmosphere, assuming it to be uniform between 240 and 390 m. (Hint: You may neglect the curvature of Earth. Why?)
C/m3
A particle with a mass of 6.64*10^-27kg and a charge of 3.20*10^-19Cis accelerated from rest through a potential difference of 2.45*10^6V. calculate the radius of the path inside the magnetic field
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For the motion along the inclined plane, should the maximum kinetic energy of the cart be equal to the potential energy of the compressed spring (under ideal conditions)?
A 85 cm^3 block of iron is removed from an 800 degree Celsius furnace and immediately dropped into 200 ml of 20 degree celsius water
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