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A hydrogen atom at rest in the laboratory emits the Paschen ? radiation.
(a) Compute the recoil kinetic energy of the atom. (Hint: Use conservation of momentum.)
eV
(b) What fraction of the excitation energy of the n = 5 state is carried by the recoiling atom?
In a crash test, a 1100 kg car slams into a concrete wall at 17.1 m/s and comes to rest in 0.275 s. a)Find out the magnitude of the impulse delivered to the car.b) Find the average stopping force.
A device known as Atwood\'s machine consists of two masses hanging from the ends of a vertical rope that passes over a pulley. Assume the rope and pulley are massless and there is no friction in the pulley.
A 2200 kg sport utility vehicle travelling at 86 km/h can be stopped in 0.15 s if it hits a concrete wall. Presume a 60 kg person was in the car that hit this wall. The velocity of the person equals that of car both before and after the crash, and..
A steel washer is suspended inside an empty shipping crate from a light string attached to the top of the crate, What is the coefficient of kinetic friction between the ramp and the crate
A 8.05 k? and a 7.05 k? resistor are connected in parallel. This combination is then connected in series with a 2.95 k, what is the maximum voltage that can be applied across the whole network
What is the potential difference
The distance to the Andromeda Galaxy is estimated at about 2 x 10(6) light years. A light year is distance traveled by light in one year; if the speed of light is 3 x 10(8) m/s, about how far is it from our galaxy to Andromeda? (1 year =3.15 x 10(..
Particle A carries a charge of 5.0 uC, Particle B is 12.0cm, Find the magnitude and direction of the electric force on A due to B
The depth of water behind the Hoover Dam in Nevada is 220 m. What is the water pressure at base of this dam? (Neglect the pressure due to the atmosphere.)
What is the (a) magnitude and (b) angle (measured relative to the positive direction of the x axis) of the asteroid's acceleration.
A railroad car with a mass of 2.46 x 10^4 kg moving at 3.25 m/s collides and joins with two railroad cars already joined together, each with the similar mass as the single car and initially moving in the same direction at 1.49 m/s.
A student at another university repeats the experiment you did in lab. Her target ball is 0.860 m above the floor when it is in the target holder, What is the kinetic energy (in joules) of the target ball just after it is struck
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