a engine supplies 120 hp to an electric generator and the generator delivers 80 hp of electrical power . What is the efficiency of the generator ?
Answers
Final answer:
The electric generator has an efficiency of approximately 66.67%, which means that 66.67% of the input energy is converted into usable electrical power.
Explanation:
The question wants to know about the efficiency of an electric generator. The efficiency of any engine or generator is defined as the ratio of useful energy output to the energy input. In this case, the energy input to the generator is 120 hp (horsepower) and the useful energy output (i.e electrical power) is 80 hp.
The formula used to calculate the efficiency is: Efficiency = (useful energy output / energy input) * 100% , Using this formula, the efficiency of the generator would be (80 / 120) * 100% = 66.67 % .
This means that 66.67% of the energy supplied to the generator is successfully converted into electrical power, while the rest is likely lost as heat or other forms of non-usable energy.
Learn more about Generator Efficiency here:
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Which of the following values would complete the ordered pair if the point is on the graph of f(x) = -2x +3? (-1,_) (fill in the blank) 510-4
r + 45 – 16 < 16 – 16
r + 45 + 3 < 16 + 3
r + 45 - 16 < 16
r + 45 - 45 < 16 - 45
Answers
Answer
Which inequalities are equivalent to r + 45 < 16? Check all that apply.
✅r + 45 – 16 < 16 – 16
✅ r + 45 + 3 < 16 + 3
✅r + 45 - 45 < 16 - 45
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Answer:
n
Step-by-step explanation:
Answers
Answer: That’s actually mode
Step-by-step explanation:
Mode- the value that appears most often in a set of data.
Median- the middle number in a list of numbers ordered from lowest to highest.
Mean- the total of all the values, divided by the number of values.
Range- the difference between the lowest value and the highest value.
Answer:
mode
Step-by-step explanation:
Answers
Answer:
d7-dx=(20x|x-3|+40)x x-3 (|x-3+2)x| x-3|
Step-by-step explanation:
Hope this helps :D
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Answer:
116
Step-by-step explanation:
es 116 porque lo cheque
Answers
Answer:
x ≈ {-3.082, 1.082}
Step-by-step explanation:
I find the easiest way to answer such a question (with medium accuracy) is to use a graphing calculator. The graph shown in the attachment gives the answers listed above.
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From vertex form
The graphing calculator also makes it easy to find the vertex of the parabola. If we divide by 3 so the scale factor is 1, then the y-value of the vertex is -13/3 and the vertex form of the equation can be written ...
... y = (x +1)² -13/3
This has x-intercepts easily found.
... 0 = (x +1)² -13/3 . . . . x-intercepts are where y=0
... (x +1)² = 13/3 . . . . . . . add 13/3
... x +1 = ±√(13/3) . . . . . take the square root
... x = -1 ±√(13/3) . . . . . subtract 1
... x ≈ {-3.0816660, 1.0816660}
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Using the quadratic formula
This equation has a=3, b=6, c=-10, so we can put these values into the quadratic formula to find the x-interecepts.
... x = (-b±√(b²-4ac))/(2a)
... x = (-6 ±√(6² -4(3)(-10)))/(2(3))
... x = (-6 ±√156)/6 = -1 ±√(13/3) . . . or . . . -1 ±(√39)/3