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An electron and proton are attached to an x axis, with the electron at x = +1.00 m and the proton at -1.00 m.
(a) How much work is required to bring an additional electron from infinity to the origin of the axis.
(b) if, instead of the second electron coming in from infinity, its initially at x = +20.00 m on the x axis and is given an initial velocity of 500.0 m/s toward the origin, does it reach the origin? If so, what is its speed the instant it reaches the origin? If not, how close to the origin does it come.
The 0.4kg slender bar and 1 kg disk released from rest in the position shown. if the disk roll, what is the bar's angular acceleration at the instant of release?
A diverging lens with a focal length of -14cm is placed 38cm to the right of a converging lens with a focal length of 19 cm. Where will the final image be located
A delivery truck travels 13 km north, 17 km east, and 29 km south. What is the angle of the final displacement relative to the east
A ball of mass m and another ball of mass 3m are placed inside a smooth metal tube with a massless spring compressed between them. With what speed does the lighter ball emerge from the other end
A steel ball of mass M is released from rest at point P. It follows a smooth curved rail to point Q and finally reaches point R with K.E. of 7J. The speed of the ball at point Q is 2MS-1 and the height between point P and the ground is 3m. Then find ..
Explain why the electron density of hydrogen is very nearly 6x10^26 electrons/kg. Explain why the electron density of all other low atomic number materials is nearly 3 x 10^26 electrons/kg. speculate why the electron density of materials might differ..
A bumper car with mass m1 = 113.0 kg is moving to the right with a velocity of v1 = 4.6 m/s. What is the final speed of the two bumper cars after the collision
question a show that the minimum stopping distance for and automobile traveling at speed v is equal to v22microsg where
Two very long wires carrying a current I of 3.0 A out of the pageare at two of the corners of an equilateral triangle. The sides ofthe triangle are 1.0 m long. Find the direction and magnitude of the magnetic field at P, the third corner of the trian..
if a force of 500n is needed to stretch a spring 2 cm, what force is needed to stretch 5cm
Suppose your waffle iron is rated at 1.40 kW when connected to a 3.60 x 102 V source. What current does the waffle iron carry
A small mirror is attached to a vertical wall, and it hangs adistance of 1.59 m above the floor. The mirror is facing dueeast, and a ray of sunlight strikes the mirror early in the morningand then again later in the morning.
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