I have a measurement with uncertainties for two years. Say
Year 1 Rain : 100mm(80-120mm)
Year 2 Rain : 120mm(103-131mm).
Now I get the percentage change in rain in Year 2 w.r.t Year 1 as 20%. Is there a way to get the uncertainty associated with this percentage change?
In a "brownout" situation, the voltage supplied by the electric company falls. Assuming the percent drop is small, show that the power output of a given appliance falls by approximately twice that percent (assuming resistance does not change).
How much of a voltage drop does it take for a 60-W...