Asmall 13.0-g plastic ball is tied to a very light 27.2-cm string that is attached to the vertical wall of a room (fig. p21.65). a uniform horizontal electric field exists in this room. when the ball has been given an excess charge of -1.10 mc, you observe that it remains suspended, with the string making an angle of 17.4° with the wall. find the magnitude and direction of the electric field in the room.
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Physics, 21.06.2019 16:30
Dalton’s model of an atom is the best described as a) a solar system b) a solid sphere c) a cloud d) a scoop of chocolate chip ice cream
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Physics, 22.06.2019 04:30
The pressure increases by 1.0 x 104 n/m^2 for every meter of depth beneath the surface of the ocean. at what depth does the volume of a pyrex (bulk modulus 2.6 x 1010n/m^2) glass cube, 9.8 x 10^−2m on an edge at the ocean's surface, decrease by 7.5 x 10−10m^3? explain the formula beyond this point: p=1.0x10^4, b=2.6x10^10, l=9.8x10^−2, delta v=7.5x10^−10. at some point l needs to be cubed. why p is divided by delta v?
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Physics, 22.06.2019 09:00
A2000 kg car is rounding a curve of radius 200 m on a level road. the maximum frictional force the road can exert on the tires of the car is 4000 n. what is the highest speed at which the car can round the curve?
Answers: 1
Asmall 13.0-g plastic ball is tied to a very light 27.2-cm string that is attached to the vertical w...
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