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H, (see Hubble's Law)
First realize if its length is now l/3 but its volume is constant its cross sectional area is 3a. Substitute those into the equation for resistance R=p(l/a) and you get (1/9)(p(l/a))= R/9
The strong force between two nucleons is initially repulsive. However at a distance of around 1 fm the force crosses over and becomes repulsive. The strong nuclear force is only seen to act over short dis...
-First find an equation for the distance travel by car 1. In this case s=5t+50 -Next find an equation for the distance traveled by car 2. Using suvat since constant acceleration (1/2)at^2+ut=s. Substitute...
It's often best to use an equation when asked for definitions like this. In this case, use Ohm's law: R = V/I (where V is potential difference, I is current and R is resistance, measured in ohms)
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