1. Use the known values of 0 and 0 in SI units to compute c...

1. Use the known values of μ₀ and Є₀ in SI units to compute c = 1 / √Є₀μ₀  and show that it is approximately 3 × 10⁸ m/s.

2. At the surface of the earth, there is an approximate average solar flux of 0.75 kW/m². A family wishes to construct a solar energy conversion system to power their home. If the conversion system is 30% efficient and the family needs a maximum of 25 kW, what effective surface area is needed for perfectly absorbing collectors?