N = sin i / sin r
sin i -- incident ray angle
sin r -- refracted ray angle
n -- refractive index
so the answer is 1.49 (3s.f.)
*Refractive Index cannot go below 1
A compound machine is one that consists of a couple simple machines working together, like a wheelbarrow contains the lever, axle, and wheel. While a simple machine would just be those individually, or anything else that can be used for applying a force.<span />
Answer:
Explanation:
Given
Power consumption of bulb and water are and
If the Devices are on for four hours
Total power of devices
Energy consumed for 4 hours is
For 30 days it is
Cost for 30 days