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3 years ago

Name one advantage and one disadvantage of the prepaid electricity system.

Physics

1 answer:

Doss [256]3 years ago

8 0

Answer:

The system prevents a consumer from accruing debt via electricity use, as it only allows the customer to use electricity which has been paid for upfront.

this gives the advantage of not allowing the consumer to rack up debt

the disadvantage for the consumer comes when they cannot afford to prepay in a time of financial difficulty - as the system now renders them as having no electricity as well as no money

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You've been called in to investigate a car accident by the Bluffs. A car went over a 7.93 meter high cliff

valina [46]

Explanation:

Use the height of the cliff to determine how long it took the car to land.

Take down to be positive. Given:

Δy = 7.93 m

v₀ = 0 m/s

a = 9.8 m/s²

Find: t

Δy = v₀ t + ½ at²

7.93 m = (0 m/s) t + ½ (9.8 m/s²) t²

t = 1.27 s

Use the time to calculate the horizontal velocity.

Given:

Δx = 26.7 m

a = 0 m/s²

Find: v₀

Δx = v₀ t + ½ at²

26.7 m = v₀ (1.27 s) + ½ (0 m/s²) (1.27 s)²

v₀ = 21.0 m/s

The driver was going 21.0 m/s, faster than the speed limit of 9.72 m/s.

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4 years ago

Read 2 more answers

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Allisa [31]

Answer:

See in explanation

Explanation:

Scientific use: The Einstein's THEORY of relativity states that "Time Is Absolute".

Everyday use: Einstein's LAW of relativity says that time is not the same at all places and events.

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3 years ago

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Pete is driving down a highway and sees a brown sign. All of the brown signs

pychu [463]

Answer:

Explanation:

He was using visual clues to read the signs.

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3 years ago

What is the electric field at a location b → = <-0.5, -0.4, 0> m, due to a particle with charge +2 nC located at the origi

Naddika [18.5K]

Answer:

$E = \frac{8.99 x10^{9} \frac{Nm^2}{C^2} * 2x10^{-9} C}{(0.64m)^2} =43.85N$

Explanation:

For this case we assume that we want to find the electrical field at the point P as we can see on the figure attached.

The electrical field wormula is given by:

$E = \frac{K Q}{d^2}$

Where r is the distance from the point and the charge. On this case we can use the Pythagoras theorem and we got:

$d^2 = (-0.5m)^2 +(-0.4)^2 = 0.41m^2$

$d =\sqrt{0.41}= 0.64m$

And now we can replace into the formula since we know that $Q = 2nC= 2x10^{-9}C$ and $K = 8.99 x10^{9} \frac{Nm^2}{C^2}$ , and we got:

$E = \frac{8.99 x10^{9} \frac{Nm^2}{C^2} * 2x10^{-9} C}{(0.64m)^2} =43.85N$

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3 years ago

Which measurement is the most precise??<br>27 m<br>27.7 m<br>27.791 m <br>27.79 m

Vera_Pavlovna [14]

Answer: 27.791 meters

Explanation: The precision of a measure depends on the number of significative decimals that it has, so the number that is most exact is the one with more numbers after the decimal point, in this case, is the third option: 27.791 m

This one is the most exact because you know that the lenght is:

27 meters, 7 centimetrs and 9.1 milimeters

3 0

4 years ago

Name one advantage and one disadvantage of the prepaid electricity system.​

Name one advantage and one disadvantage of the prepaid electricity system.