All categories

3 years ago

A 9.38 microFarad capacitor is measured to have a reactance of 260.0 Ohm. At what frequency (in Hz) is it being driven?

Physics

1 answer:

AleksandrR [38]3 years ago

8 0

Answer:

The frequency is 65.25 Hz.

Explanation:

Given that,

Capacitor = 9.38 μF

Reactant = 260.0 ohm

We need to calculate the frequency

Using formula of reactant

$X_{c}=\dfrac{1}{2\pi fC}$

Where, f = frequency

C = capacitor

$X_{c}$ =reactant

Put the value in to the formula

$260.0=\dfrac{1}{2\times\pi\times f\times9.38\times10^{6}}$

$f=\dfrac{1}{2\times\pi\times9.38\times10^{-6}\times260.0}$

$f=65.25\ Hz$

Hence, The frequency is 65.25 Hz

You might be interested in

Which of the following are known to exist on the moon? select all that apply.

denis-greek [22]

B. ice and d basalt............

3 0

3 years ago

Read 2 more answers

A scene in a movie has a stuntman falling through a floor onto a bed in the room below. The plan is to have the actor fall on hi

tekilochka [14]

Answer:

The maximum mass that can fall on the mattress without exceeding the maximum compression distance is 16.6 kg

Explanation:

Hi there!

Due to conservation of energy, the potential energy (PE) of the mass at a height of 3.32 m will be transformed into elastic potential energy (EPE) when it falls on the mattress:

PE = EPE

m · g · h = 1/2 k · x²

Where:

m = mass.

g = acceleration due to gravity.

h = height.

k = spring constant.

x = compression distance

The maximum compression distance is 0.1289 m, then, the maximum elastic potential energy will be the following:

EPE =1/2 k · x²

EPE = 1/2 · 65144 N/m · (0.1289 m)² = 541.2 J

Then, using the equation of gravitational potential energy:

PE = m · g · h = 541.2 J

m = 541.2 J/ g · h

m = 541.2 kg · m²/s² / (9.8 m/s² · 3.32 m)

m = 16.6 kg

The maximum mass that can fall on the mattress without exceeding the maximum compression distance is 16.6 kg.

6 0

3 years ago

when a circular plate of metal is heated in an oven, its radius increases at .03 cm/min, at what rate is the area increasing whe

Alinara [238K]

Answer:

Rate of change of area will be $9.796cm^2/min$

Explanation:

We have given rate of change of radius $\frac{dr}{dt}=0.03cm/min$

Radius of the circular plate r = 52 cm

Area is given by $A=\pi r^2$

So $\frac{dA}{dt}=2\pi r\frac{dr}{dt}$

Puting the value of r and $\frac{dr}{dt}$

$\frac{dA}{dt}=2\times 3.14\times 52\times 0.03=9.796cm^2/min$

So rate of change of area will be $9.796cm^2/min$

6 0

3 years ago

How many electrons are in the third energy level? 2 8 18 20

Blababa [14]

Answer:

B)8

Explanation:

In the first energy level you can have, at most, 2. Every energy level after that wants to have 8 electrons. Valence electrons I believe.

Hope this helps, have a nice day! (^-^)

6 0

3 years ago

Read 2 more answers

Select the correct answer.

natali 33 [55]

The wave speed completely depends on the characteristics and properties of the medium . . . physical properties for mechanical waves, electrical properties for electromagnedtic waves.

So if you want to change the speed of a wave, you have to change the medium . . . shoot it through some different kind of stuff. (B)

4 0

3 years ago

Read 2 more answers