The earth rotates from west to east :)
Answer:
150.8 J
Explanation:
The heat released by the copper wire is given by:

where:
m = 10.0 g is the mass of the wire
Cs = 0.377 j/(g.C) is the specific heat capacity of copper
is the change in temperature of the wire
Substituting into the equation, we find

And the sign is negative because the heat is released by the wire.
See coulomb's law. Force is inversely proportional to the distance squared. So if you multiply r by 2, the force is multiplied by (½)² = ¼.
a. F/4
<span>diminution in the density of something, especially air or a gas.</span>