Answer:
The question is incomplete, below is the complete question
"The real power delivered by a source to two impedance, Z1=4+j5Ω and Z2=10Ω connected in parallel, is 1000 W. Determine (a) the real power absorbed by each of the impedances and (b) the source current."
answer:
a. 615W, 384.4W
b. 17.4A
Explanation:
To determine the real power absorbed by the impedance, we need to find first the equivalent admittance for each impedance.
recall that the symbol for admittance is Y and express as

Hence for each we have,

for the second impedance we have

we also determine the voltage cross the impedance,
P=V^2(Y1 +Y2)


The real power in the impedance is calculated as

for the second impedance

b. We determine the equivalent admittance

We convert the equivalent admittance back into the polar form

the source current flows is

Explanation:
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Answer:
Building the Canadian hydroelectric plant reduced the rate of erosion after 1906. This change in the rate of erosion is represented by the change in the slope on the graph. Hydroelectric dams convert kinetic energy from moving water to electrical energy.
Answer: <u><em>Three examples of activities that I can perform on a daily basis that involves both metric units (SI units) and customary units include: measuring the length of a door using a tape measure, which includes both SI units and customary units (like feet, inches, and centimeters); baking a cake that requires one teaspoon (customary unit) of baking soda, which could also be converted into four grams (SI unit); weighing myself on a weighing scale, which can be measured by pounds (customary unit) or kilograms (metric unit).</em></u>
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Explanation: <u><em>I big brain</em></u><em> :) </em><u><em>(Not Really I Just Wanted To Help</em></u><em>) I hope this helped! ;)</em>