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A photon with energy 1.85 eV is absorbed by a hydrogen atom.
(a) Find the minimum n for a hydrogen atom that can be ionized by such a photon.
_____________________
(b) Find the speed of the electron released from the state in part (a) when it is far from the nucleus.
_______________km/s
A car of mass 960 travels at a speed of 30 along the straight road. The driver sees a red traffic light ahead, and applies brakes. The coefficient of friction between the car tyres and the road is 0.88. Take the acceleration due to gravity to be 9.80..
Two balls with a net charge of - 4.0 C and + 10.0 C are separated by 2 cm. A) What is the electrostatic force on the positive charge? B) What is the electrostatic force on the negative charge?
A bullet is shot vertically up with v0 from ground level. The definition of vertical is by a plumb bob, find the location where the bullet returns to the ground
The Balmer series in atomic hydrogen is the series of wavelengths emitted by the electron when it makes a transition from an energy level with n > 2 to the n = 2 level, Find the four largest wavelengths in the Lyman series
He would like a prescription for contact lenses to serve the similar purpose. What is the correct contact lens prescription, in diopters.
A bowling ball encounters a 0.760 m vertical rise on the way back to the ball rack, Find the translational speed at the top
If the skier is moving at 13 m/s at the bottom of the trail, calculate the total work done by friction and air resistance during the run
A net force of 7 newtons acts on an object that weighs 49 newtons. What is the resulting acceleration
The sound level measured in the room by a person watching a movie in a home theatre system varies from 63 dB throughout a quiet part to 92 dB throughout a loud part. In the order of how many times louder is the latter sound.
A 420 turn solenoid, 30 cm long, has a diameter of 2.4 cm. A short 20 turn coil is wound tightly around the center of the solenoid. what will be the induced emf magnitude in the short coil
You create a plot of a (in m/s2) vs sin ? and the linear fit of your graph gives a slope of 9.7260 ± 0.3100.
An object glides on a horizontal tabletop with a coefficient of kinetic friction of 0.3. If it comes to rest after 1.3 seconds, what was its initial velocity
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