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An electron and a proton are initially very far apart (effectively an infinite distance apart). They are then brought together to form a hydrogen atom, in which the electron orbits the proton at an average distance of 5.39 10-11 m. What is EPEfinal - EPEinitial, which is the change in the electric potential energy?
Find out line linking the two point charges
How much charge does the battery supply to each plate.
the speed of light in a material is 0.41 c. what is the critical angle of a light ray at the interfacce between the material and a vacuum
An ice skater is gliding horizontally across the ice with an initial velocity of +7.77 m/s. How much time elapses before her velocity is reduced to +3.00 m/s
Use the Bohr model to calculate the wavelength λ of the photon emitted when the electron in a hydrogen atom falls from the n = 5 level
A 1.65kg chicken is blown into a wall by a strong gust of wind and held there. What is the minimum force of the gust of wind
Two people are carrying a uniform wooden board that is 3.40m long and weighs 145N. What force does the other person lift
A string under a tension of 47.00N is used to whirl a rock in a horizontal circle of radius 2.60 m at a speed of 21.0 m/s. The string is pulled in and the speed of the rock increases.
A proton moving at 7.00 106 m/s through a magnetic field of magnitude 1.74 T experiences a magnetic force of magnitude 7.40 10-13 N. What is the angle between the proton's velocity and the field
A large truck collides head-on with a small car. how do the forces acting between the truck and car compare during the collision
A motorist drives south at 22 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 2.40 min, and finally travels northwest at 30 m/s for 1.00 min. For this 6.40 min trip, find out the following values.
Copper has an electrical resistivity %u03C1 = 1.72 x 10-8 %u2126m. What is the electrical resistance of a copper wire
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