3 years ago

3. Why is static electricity not useful as a power

1 answer:

3 0

The answer is B, because all energy is released at once in static electricity.

There’s a quizlet that mentions these questions, if you are having trouble. I’d suggest to give them a look.

You might be interested in

Can anyone answer my questions that I've asked?

Monica [59]

Answer:

76 N north-east

Explanation:

V = √(44²+62²) = 76 N

8 0

3 years ago

An electric toaster is rated 1200 watts at 120 volts. what is the total electrical energy used to operate the toaster for 30 sec

Tresset [83]

Answer : Total electrical energy is 36000 J.

Explanation :

It is given that,

Power of electric toaster, P = 1200 Watts

Voltage, V = 120 Volts

Time, t = 30 s

Electric energy is defined as the product of the power and the time taken.

$E=Pt$

$E=1200\ W\times 30\ s$

$E=36000\ J$

Total electrical energy used to operate the toaster for 30 seconds is 36000 J.

8 0

4 years ago

Read 2 more answers

which of these changes does a submarine encounter as it returns from the bottom of the ocean to the surface of the ocean? a. the

Lady bird [3.3K]

The amount of sunlight increases

4 0

3 years ago

Read 2 more answers

Electric charge is distributed over the disk x2 + y2 ≤ 4 so that the charge density at (x, y) is rho(x, y) = 4x + 4y + 4x2 + 4y2

maw [93]

Answer:

Q=185.84C

Explanation:

We have to take into account the integral

$Q=\int \rho dV$

In this case we have a superficial density in coordinate system.

Hence, we have for R: x2 + y2 ≤ 4

$Q=\int_{-2}^2\int_{-\sqrt{4-x^2}}^{\sqrt{4-x^2}}\rho dydx$

but, for symmetry:

$Q=4\int_0^2\int_0^{\sqrt{4-x^2}}\rho dydx\\\\Q=4\int_0^2\int_0^{\sqrt{4-x^2}}(4x+4y+4x^2+4y^2) dydx\\\\Q=4\int_0^{2}[4x\sqrt{4-x^2}+2(4-x^2)+4x^2\sqrt{4-x^2}+\frac{4}{3}(4-x^2)^{3/2}]dx\\\\Q=4[46.46]=185.84C$

HOPE THIS HELPS!!

8 0

3 years ago

To what extent are disorders the product of a particular environment, and to what extent

mixas84 [53]

Sorry don’t know hope you gave the answer to your questions

8 0

3 years ago