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Alekssandra [29.7K]

2 years ago

12

Can you turn on a gas fireplace without electricity?

1 answer:

ludmilkaskok [199]2 years ago

8 0

Answer: Many gas fireplaces will work without electricity. You can run both intermittent pilot ignition fireplaces and standing pilot light systems during a power outage. IPI valve systems will normally have a backup battery system in place to ignite the flames

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A positive point charge (q = +5.45 x 10-8 C) is surrounded by an equipotential surface A, which has a radius of rA = 1.49 m. A p

ruslelena [56]

Answer:

$r_{B} = 3.34\ m$

Solution:

As per the question:

Point charge, q = $5.45\times 10^{- 8}\ C$

Test charge, $q_{o} = 4.96\times 10^{- 11}\ C$

Work done by the electric force, $W_{AB} = - 9.05\times 10^{- 9}\ J$

Now,

We know that the electric potential at a point is given by:

$V = \frac{kqq'}{r}$

where

r = separation distance between the charges.

Also,

The work done by the electric force i moving a test charge from point A to B in an electric field:

$W_{AB} = kqq_{o}(\frac{1}{r_{B} - \frac{1}{r_{A}}}$

$- 9.05\times 10^{- 9} = 9\times 10^{9}\times 5.45\times 10^{- 8}\times 4.96\times 10^{- 11}(\frac{1}{r_{B}} - \frac{1}{1.49}}$

$- 0.3719 = (\frac{1}{r_{B}} - 0.67}$

$r_{B} = \frac{1}{0.299} = 3.34\ m$

5 0

4 years ago

Please help me!

vovikov84 [41]

It is A. Im taking the test right now.

8 0

3 years ago

Read 2 more answers

Select all that apply.

sattari [20]

Answer: The temperature and the number of molecules must remain constant for the law to apply.

Explanation:

6 0

3 years ago

Greg can't remember how tall his 9-month-old niece is. He guesses that she is 100 cm tall. Which of the following is true?

77julia77 [94]

Answer:

C

Explanation:

7 0

3 years ago

1. A 2.10 m rope attaches a tire to an overhanging tree limb. A girl swinging on the

Alecsey [184]

Answer:

29.6 kg

Explanation:

Centripetal force = mass × centripetal acceleration

F = m v² / r

88.0 N = m (2.50 m/s)² / 2.10 m

m = 29.6 kg

5 0

3 years ago