Purchase Solution

Travelling from Earth to Mars & Between Atom Energy Levels

Not what you're looking for?

Ask Custom Question

1. In the Bohr model of the atom, the energy of the electron depends only on one quantum number, n. In the Paschen series of the spectral wavelengths, the electronic transitions always terminate at the n=3 level.
a. Calculate the energy of the electron in the n=3 level of hydrogen, in electron volts.
b. What is the smallest possible 'energy gap" between the n=3 level and some other level/ Given the answer in electron volts.
c. What is the longest wavelength of light given off in the Paschen series of hydrogen?

2. Why was the Bohr model unsatisfactory in giving us a compete model for atoms?

3. The mass energy of an electron is 0.511 MeV. What is the speed of an electron whose total energy is three times that or 1.53 MeV?

4. Early models of the atoms assumed a large "soft" ball of positive charge with electrons embedded in it. What evidence do we have that this is wrong?

5. Spaceman Spiff passes the earth onhis way to Mars. His thruster control is stuck and his spacecraft is traveling at .95c. This distance from the earth to Mars is 1.2 10^11m.

a. How long (as observed by someone on earth) will it take Spiff to travel from the earth to Mars?

b. What is the distance Spiff measures for the distance from the earth to Mars?

c.How much time will Spiff measure for his trip from earth to Mars?

Purchase this Solution
Solution Summary

Solution attaches a Word file to show how to answer these 5 multi-part questions covering distances and travel times from Earth to Mars, atom model physics and electron energies.

Purchase this Solution
Free BrainMass Quizzes
Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

The Moon

Test your knowledge of moon phases and movement.

Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

View More Free Quizzes
Related BrainMass Solutions

  • Physics: Protons, Speed, Clocks

    (A) How long (as observed by someone on the earth) will it take Spiff to travel from the earth to Mars? (B) How much time will Spiff measure for his trip from the earth to Mars?

  • Gravitation

    218294 Launching of satellite from Earth to Mars. Assume the Earth has a circular orbit around the sun of radius and that Mars has a circular orbit around the sun of radius .

  • The Atmospheres of Earth, Venus, and Mars

    On Earth, rainwater removes carbon dioxide from the atmosphere, and brings it back to the Earth's crust, and then volcanic activity releases the carbon dioxide back into the atmosphere.

  • Basic Astrophysics

    This energy difference manifests itself as a electrodynamic radiation (photon) with an exact frequency. Since the energy levels in an atom are quantized, the atom can emit or absorb only certain photons with certain frequencies.

  • Supporting Life on Another Planet

    For example, here on earth human beings, need oxygen for survival, there is not enough oxygen on Mars, and then NASA would have to consider bringing oxygen tanks with them if they are going to colonize Mars.

  • Meteorites and the Composition of Earth

    that fell to Earth 13,000 years ago.

  • Electromagnetic Waves: Radio Message from Mars

    17575 Electromagnetic Waves: Radio Message from Mars At its closest approach, Mars is 56 million km from Earth. How long would it take to send a radio message from a space probe of Mars to earth when the planets are at this closest distance?

  • Molecules

    when a light wave hits an atom, some of the energy will be transfered to excite electrons (move them to a higher energy level). Quantum mechanics dictate that these transitions can happen from only certain energy levels to others.

  • Atoms, Energy, and the Periodic Table

    For n = 1 H atom, E = 2.18 x x 10-18 J To promote them to n = 3, the energy of the third level = 2.18 x x 10-18 J / 32 = 2.42 x 10-19 J Difference in energy between levels = 1.938 x 10-18 J Hence wavelength required of photons = = (6.625 x 10-34

View More Related Solutions