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If there are two point along the x-axis, positive q to the right and -q to the left of the orgin. Both with the distance a/2 from the orgin, with the point P between the two charges but closer to the positive charge. Find
(a) the potential at that point,
(b) find the electric field at that point using the fact that the electric field is the negative derivative of the potential, and
(c) Find the electric field at that point without using derivatives.
(d) Compare your answers from b. and c.
Find the length of a side of a cube having a mass of 1.3 kg and the density of nuclear matter, taking this to be 2.3 ? 1017 kg/m3
The car now stops, and the four people get out. By how much does the car body rise on its suspension owing to this reduce in weight.
A long, straight wire runs along the axis of the solenoid, carrying a current of 15. Find out the magnitude of the net magnetic field a radial distance of 0.80 from the straight wire.
Water has a mass per mole of 18g/mol, and each water molecule (H2O) has 10 electrons.
An object moves with constant acceleration 5.00 m/s2 and over a time interval reaches a final velocity of 11.2 m/s. (a) If its initial velocity is 5.6 m/s, what is its displacement during the time interval?
who is initially at rest, hops on her back and together they continue down the hill. Illustrate what is their speed at the bottom of the hill if the total vertical drop is 17.0 m? Gayle's mass is 50.0 kg, the sled has a mass of 5.00 kg and her bro..
To make an order-of-magnitude estimate of the energy level spacings in the nucleus, Calculate the energy of the ground state
A 1.65 block is attached to a spring with spring constant 17. While the block is sitting at rest, a student hits it with the hammer and almost instantaneously gives it a speed of 59.
an electron in an x-ray machine is accelerated through a potential difference of 1.00 X 10^4 V, What is the kinetic energy of the electron
An asteroid is discovered heading straight toward Earth at 13km/s. An international team manages to attach a giant rocket engine to the asteroid. The rocket fires for 10 mins, after which the asteroid is moving at 28 degrees to its original path at a..
A dart is thrown horizontally toward the bull's-eye, point P on the (non-standard size) dart board in the figure, with an initial speed of 8.9 m/s. It hits at point Q on the rim, vertically below P 0.14 s later. What is the distance PQ? How far aw..
Compute coefficient of kinetic friction
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