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The electric field is measured all over the surface of a cylinder whose diameter is 8 cm and whose height is 20 cm, as shown in the diagram. At every location on the surface the electric field points in the same direction (+y). E1 is found to be 558V/m; E2 is 773V/m; E3 is 1233V/m.
How much charge is inside the surface? E0 = 8.85e-12 C2/N m2.
Jimmy and his cart (with a combined mass of 200 kg) are moving along with a velocity v1 = 20 m/s i. What is the velocity of the combined system of two carts plus occupants after the collision
Two pole-vaulters just clear the bar at the same height. The first lands at a speed of 7.70 m/s, and the second lands at a speed of 7.95 m/s. The first vaulters clears the bar at a speed of 2.00 m/s. Ignore air resistance and friction and decide the ..
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a proton is released from rest in a uniform electric field of magnitude 1.26x105 nc. find the speed of the proton after
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The temperature of the surface of a certain star is 7500K. Most hydrogen atoms at the surface of star are in the electronic ground state. What is the approximate fraction of hydrogen atoms that are in the first excited state (and therefore could e..
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