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zalisa [80]
3 years ago
9

A police car drives with a constant speed of 60 m/h. How long will it take to travel a distance of 180 kilometers?

Physics
1 answer:
posledela3 years ago
4 0
3000 km; you must first convert 60 m to km, then divide that number by 180. 
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Read 2 more answers
A single-phase electrical load draws 600KVA at 0.6 power factor lagging. a) Find the real and reactive power absorbed by the loa
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Answer:

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Explanation:

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Using formula of reactive power

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We need to calculate the \phi

Using formula of \phi

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Put the value into the formula

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Put the value of Φ in equation (I)

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(b). We draw the power triangle

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Using formula of reactive power

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Q'=9.94\ KVAR

We need to calculate the difference between Q and Q'

Q''=Q-Q'

Put the value into the formula

Q''=799.99-9.94

Q''=790.05\ KVAR

Hence, (a). The reactive power is 799.99 KVAR.

(c). The reactive power of a capacitor to be connected across the load to raise the power factor to 0.95 is 790.05 KVAR.

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