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Use the Bohr theory formulas to determine
(a) determine the kinetic energy and
(b) determine the potential energy of an electron in the ground state of hydrogen. Give your answer in eV.
At its highest temperature, a space heater has a resistance of 15.5 ?, What is the average power output of the space heater
Find the electric field inside a hollow plastic ball of radius R that has charge Q uniformly distributed on its outer surface
2.00 mole of an ideal gas at 330k, 3.50 atm and 3.0L are isothermically compressed causing a change of entropy in the system equal to -25.0 J*K^-1. determine the final volume of the system
A skier approaches the base of an icy, frictionless hill with a speed of 10.7 . The hill slopes upward at 19.0 above the horizontal. Find the acceleration of this skier
block 2 (mass 1.0 kg) is at rest on a frictionless surface and touching the end of an unstretched spring of springconstant 200 N/m. The other end of the spring is fixed to a wall.Block 1 (mass 2.0 kg), traveling at speed 4 m/s, collides with block..
q1. from a cliff that is 9.4 m above a lake a young woman mass 44 kg jumps from rest straight down into the water. at
Electronics and inhabitants of the International Space Station generate a significant amount of thermal energy that the station must get rid of. How much power is radiated from each panel
A 1200 {\rm kg} car moving at 88 {\rm km/h} collides with a 7600{\rm kg} truck moving in the samedirection at 65 {\rm km/h} . The two stick together,continuing in their original direction at 68 {\rm km/h}. Determine the kinetic energy of the center..
The electric field is defined as the Coulomb force per unit charge. Explain why the magnetic field cannot be defined as the magnetic force per unit charge.
A typical capacitor in an MP3 player has C = 5 ?F. If a charge ±37 ?C is placed on the plates, what is the voltage across the capacitor?
Transverse waves on a string have wave speed , amplitude , and wavelength . The waves travel in the -x direction, andat the end of the string has its maximum upwarddisplacement.
A 40 g bullet traveling 500 m/s penetrated 5 cm into a tree trunk. what was the retarding force on the bullet
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