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The interaction responsible for keeping protons and neutrons together in a stable nucleus is the strong interaction. The strong interaction has a very short range of less than/up to 5fm. The strong intera...
The key equation here is v = fL ( v is wave speed (m/s), f is frequency (Hz), L is wavelength (m)). We need to rearrange it to get L (the wavelength). To do this, we divide by f to get L = v/f. Frequency ...
Doppler shift can be described as the fractional change in wavelength due to relative motion between an observer and a wave source. The wavelength of a line in the spectrum of light emitted by a distant r...
if object A exerts a force on object B, object B exerts an equal and opposite force on object A.
We use Newtons equation for gravitational force. F=GMm/r2 .1 AU is the mean distance at which the Earth orbits the Sun, taken to be: 1.49x1011 m.Substituting in the numbers we find t...
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