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The neutral hydrogen atom in its normal state behaves in some respects like an electric charge distribution which consists of a point charge of magnitude +e surrounded by a distribution of negative charge whose density is given by \(\rho(r) =-Ce^{-2r/a_{0}}\) a0 is the Bohr radius 0.53 * 10^-10 m and C is a constant with the value required to make the total amount of negative charge exactly e. What is the net electric charge inside a sphere of radius a0? What is the electric field strength at this distance from the nucleus?
The only two forces acting on a body have magnitudes of 20 Nand 36 N and directions that differ by40°. What is the mass of the body
A spherical capacitor contains a solid spherical conductor of radius 0.5mm with a charge of 7.4 micro coulombs, surrounded by a dielectric material with er = 1.8 out to a radius of 1.2mm, then an outer spherical non-conducting shell, with variable ch..
An electron moving to the right at 1.0% the speed of lightenters a uniform electric field parallel to its direction ofmotion. what direction is required for the electric field
A spring with constant k = 10 N/m is attached to a block. What is the force on the block by the spring when the spring has been stretched by 0.05 m
What is magnitude of the runner total displacement
Your cup of coffee is too hot to drink when served at 95.What is mass of an ice cube, taken from a -19.0 freezer, that will cool your coffee to a pleasant 62.
An electrical resistor has a voltage drop of 5.00 V when 0.300 A of current flows. At what rate (W) is heat dissipated
Estimate the particle density necessary for bose-Einstein condensation of a hydrogen gas to occur at 100 nK. find the ratio of the thermal wavelength to the atom spacing
A 1250 kg cannon, which fires a 80 kg shell with a speed of 546 m/s relative to the muzzle, is set at an elevation angle of 39° above the horizontal. At what angle with the ground is the shell projected
consider two solid disks of identical radius and thickness. one of the disks is made of aluminum (density=2.7g/cm), what is the ratio between the two moments of inertia
Find the angular velocity of the earth as it spins on its axis and the tangential velocity of an object at the equator and one at the University of West Florida in Pensacola
question1a 67 human sprinters can accelerate from rest to 11 in 3.0. throughout the similar interval a 32 greyhound can
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