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Long Straight Wire A long straight wire has fixednegative charge with a linear charge density of -3.1 nC/m. The wire is to be enclosed by a thin,nonconducting cylinder of outside radius 1.6 cm, coaxial with the wire. The cylinder is to havepositive charge on its outside surface with a surface chargedensity σ such that the net external electric fieldis zero. Calculate the require
In the Bohr model of the hydrogen atom, the speed of the electron is approximately 2.30 106 m/s. Find the centripetal acceleration of the electron
A parallel-plate air capacitor has a capacitance of 400pF and a charge of magnitude 0.150\muC on each plate. The plates are 0.600mm apart. What is the electric-field magnitude between the plates
An atom is cooled to zero K, and confined in a harmonic potential V (x) = 1 m?2x2. At 2t=0, the potential is switched off, such that V (x) = 0
A doubly charged ion is accelerated to an energy of 31.5 keV by the electric field, What is the electric field strength between the plates in V/m
An aluminum wire is 20m long and has a radius of 2mm = 2x10^-3 m. The linear limit for aluminum is 0.6x10^8 N m^-2. a.) how large a tension force must be applied to stretch the wire to its linear limit? b.) how much will the wire stretch when this fo..
The Red Shift is evidence of an expanding Universe. A star like our Sun has a peak wavelength of 518 nm. If the star appeared to have a peak wavelength of 530 nm, find the rate of expansion (velocity) between that star and our Sun.
A parallel-plate air-filled capacitor having area 41.0 cm2 and plate spacing 2.70 mm is charged to a potential difference of 360. V. calculate the energy density between the plates
The weins displacement law tells us that when an object is heated to incandesence it will If the nail seems to give off a maximum of light in the 630 nm region
A 1348 kg weather rocket is launched straight up. The rocket motor provides a constant acceleration for 13.6 s, then the motor stops. The rocket altitude 29.6 s after launch is 2091 m. You can avoid any effects of air resistance. What was the rock..
A cylindrical space station of radius R and length L has a density that varies with distance from its center, Calculate the total mass M of the entire space station
An air-track glider attached to a spring oscillates between the 11.12 cm mark and the 54.38 cm mark on the track. What is the maximum speed of the glider in cm/s
How much mass is converted to energy in H fusion and What do exoplanets (especially Hot Jupiters) tell us about planet behavior!
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