Recent content by Alter Baron

You might find the 555 timer datasheet useful: http://www.datasheetcatalog.org/datasheet/philips/NE_SA_SE555_C_2.pdf Do you want an astable or monostable setup? (That is, flash once or blink). Under typical applications in the above datasheet, they give schematics and accompanying formulae for...

Have you tried the problem yet? Hint: Half width is half the distance between two maxima.

That's correct. :smile:

Ok, first of all, you should get a value of 0.323, but that is in Newtons. Find the mass that is needed to balance that force.

0.46g is in g; should be in kg.

To separate the nucleons completely, you must supply the binding energy of the nucleus: Eb = [m(nucleons) - m(nucleus)]c^2 (Note that mass is in kg). Alternatively, use 931.5MeV / u to simplify the calculation (and use only atomic mass units): Eb = [m(nucleons) - m(nucleus)] x 931.5 MeV/u If...

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First, remember how diffraction works: - The longer the wavelength, the more diffraction. - The shorter the wavelength, the less diffraction. How does the wavelength of the electrons compare with the wavelength of photons? How does the wavelength of water waves compare with the wavelength of...

Use conservation of energy to find the velocity. Then use the velocity in the momentum calculation.

Ok, then try this: Use mgh = 1/2mv^2 to find Jane's velocity at the lowest point in her swing. Now use conservation of momentum: m(initial)v(initial) = m(final)v(final) m(initial) is just jane's mass and v(initial) is the velocity you found. m(final) is the combined mass of both...

The mistake is in what you are equating. We need not find Jane's speed at the lowest point; rather, we must only find the energy she has gained. This energy then goes into raising the combined masses of her and Tarzan to a new height. Let J = mass of Jane and T = mass of Tarzan. E(before) =...

Here's a hint: What is the difference between Jane's height at the beginning of the swing and her height at the lowest point of her swing (when we assume she picks up Tarzan)? Also, after she picks up Tarzan, treat the two as one combined mass. Basically, split the problem into a before-pickup...

Basically, the equation E=mc² is a statement of mass-energy equivalence. Mass is energy, and energy is mass. Here's an example. Let's say you have a helium balloon of volume 12.4L at standard ambient air temperature and pressure. That volume of helium is equivalent to about 0.002kg of gas...