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An electron is confined to a region of space of the size of an atom (0.1 nm).a) What is the uncertainty in the momentum of the electron?b) What is the kinetic energy of an electron with a momentum equal to deltaP ?c) Does this give a reasonable value calue for the kinetic energy of an electron in an atom?
at the surface of the earth what is the force on the rocket due to gravity when the rocket has reached an altitude of 1.2 x 104 km
Two concentric metal spheres are found to have a potential difference of 846.0 V when a charge of 3.186·10-8 C is applied to them. What is the radius of the inner sphere
Identical point charges of +1.6 ?C are fixed to diagonally opposite corners of a square. Find the sign and magnitude of the third charge
A car is moving to the left at 20 m/s while a truck is moving to the right at 25 m/s. what is the perceived frequency, in Hz, of the sound by the driver of the car
A light bulb marked "100 W [at] 120 V" is screwed into a socket at one end of a long extension cord in which each of the two conductors has resistance of 0.600 Ω
A Big Mac has 3,100,000 Joules of chemical energy, what is the cost of the electric energy equivalent to the energy in a Big Mac
The population of a community was 12500 in 1985 and 36000 in 2000. Find the time it takes the population of this town to double
ultraviolet light with a frequency of 3.0x10^15 Hz strikes a metal surface and ejects electrons that have a maximum kinetic energy of 7.43 ev. what is the work function of the metal
a Hollow sphere of mass M=1000kg and radius R=25cm is rolling down of an incline plans making an angle with horizontal. calculate the angular acceleration of hollow sphere
Tarzan swings through the jungle by hanging from a vine. Immediately after he steps off the branch, is Tarzan's acceleration zero or nonzero
Problem 12.30: Singing in the shower. We all sound like great singers in the shower, due to standing waves, What are the wavelengths of the first two overtones for this shower
A bullet with mass m and speed v is fired at a ballistic pendulum bob of mass M. The bob is attached to a thin, light rod of length L, hangs vertically initially, and is attached to a pivot at its top end.
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