Number 4 I think
the atomic mass is 11 because the mass is the sum of protons and neutrons
Answer:
charge
Explanation:
7r0I and its etc. ,"!×_/;
Centrifugal force is not a real force.
When you move around a curve, there IS a real force pulling you
around the curve. Since your body wants to go straight, it feels as if
there's a force trying to pull you away from the curve. But there isn't.
That feeling of a force is greater when your speed around the curve
is greater, or when the curve is tighter, i.e. smaller radius.
Answer:
Explanation:
First of all, we need to calculate the resistance of the piece of copper wire between the bird's feet, which is given by
where:
is the resistivity of copper
is the length of the piece of wire between the bird's feet
is the cross-sectional area of the wire, with r being the radius. Since the radius is half the diameter:
the area is
And the resistance is
And given the current in the wire, I=32 A, we can calculate the potential difference across the bird's body by using Ohm's law:
