Question

The allowed energies of a simple atom are 0.0 eV, 5.0 eV, and 8.0 eV. An electron traveling at a speed of 1.9 x 10^6 m/s collisionally excites the atom. A) What is the minimum speed the electron could have after the collision? B) What is the maximum speed the electron could have after the collision?

Answer #1

The allowed energies of a simple atom are 0.00 eV, 4.21 eV , and
5.63 eV .
Part A
What wavelengths appear in the atom's emission spectrum?
Enter your answers in ascending order separated by commas.
Part B
What wavelengths appear in the atom's absorption spectrum?
Enter your answers in ascending order separated by commas.

The allowed energies of a simple atom are 0.00 eV, 3.73 eV , and
5.58 eV .
Part A
What wavelengths appear in the atom's emission spectrum?
Enter your answers in ascending order separated by commas.
Part B
What wavelengths appear in the atom's absorption spectrum?
Enter your answers in ascending order separated by commas.

The allowed energies
of a simple atom are 0.00 eV, 4.05 eV , and 5.12 eV .
Part
A
What wavelengths
appear in the atom's emission spectrum?
Enter your answers in
ascending order separated by commas.
Part
B
What wavelengths
appear in the atom's absorption spectrum?
Enter your answers in
ascending order separated by comma

The allowed energies of a quantum system are 0.0 eV, 6.0 eV ,
and 8.5 eV . What wavelengths appear in the system's emission
spectrum? Enter your answers in ascending order separated by
commas.

An electron with a speed of 6.00×106 m/sm/s, collides
with an atom. The collision excites the atom from its ground state
(0 eVeV) to a state with an energy of 3.40 eVeV.
What is the speed of the electron after the collision?
Express your answer in meters per second.

A 5.0 kg bowling ball traveling 3.0 m/s collides with an 8.0 kg
stationary bowling ball. After the collision the 5.0 kg ball is
deflected to the left from its original path by 30 degrees, while
the 8.0 kg ball is deflected to the right at an angle of 45
degrees. What are the speeds of the two balls after the impact?

A 5.0-kg mass moving at 8.0 m/s collides head-on with a 3.0-kg
mass initially at rest If the collision is perfectly elastic, what
is the speed of the masses just after the collision? Is the kinetic
energy conserved?

a) An electron in a quantum system has allowed energies 1eV,
3eV and 9 eV. What wavelengths are observed in the emission
spectrum of this system? Show your work.
b) If you must choose from wavelengths obtained in part a) as
light source for a photoelectric effect demonstration, with which
material(s) will you build your cathode, and with what wavelength
you would shine on it?
Show your work.

A 5.0 kg block with a speed of 3.0 m/s collides with a 10 kg
block that has a speed of 2.2 m/s in the same direction. After the
collision, the 10 kg block is observed to be traveling in the
original direction with a speed of 2.7 m/s.
(b) By how much does the total kinetic energy of the system of two
blocks change because of the collision?
________ J
(c) Suppose, instead, that the 10 kg block ends...

(a) Assume an electron in the ground state of the hydrogen atom
moves at an average speed of 5.00 × 10^6 m/s. If the speed is known
to an uncertainty of 1 percent, what is the minimum uncertainty in
its position? The radius of the hydrogen atom in the ground state
is 5.29 × 10^−11 m. The mass of an electron is 9.1094 × 10^−31
kg.
__________× 10______ m
(b) A 0.13−kg baseball thrown at 100 mph has a momentum...

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