Not sure if this is a physics question but how do I find the formula using
ohms law..any one

Answers

Answer 1

Answer:
Physics is as good a place as any, I guess.

And, before we roll up our sleeves, may I also note that assigning 48 fill-ins
(4 each for 12 problems) is exceeded in its excess only by expecting all of
the answers in return for 5 points. I'll give you the tips and hints you need
in order to solve these, and then I'll wish you well.

I see from the label in the upper corner that all of this refers to series circuits.
That's important to know, and I was about to ask. So we're going to assume
that for the whole bunch on the page, R1 and R2 are in series, connected
across VS, and there are no other components involved besides the two
resistors.

OK. Here are the tools you need:

On a resistor . . .
   ' K ' = 'thousand'
   ' Meg ' = 'million'

Total resistance . . . RT = R1 + R2 ohms

Voltage across each resistor:
VR1 = VS [ R1 / (R1+R2) ] volts

VR2 = VS [ R2 / (R1+R2) ]    volts

Total current in the series circuit:
   IT = VS / RT = VS / (R1+R2) Amps

And that's it. Easier than I thought. There are some other things that
it could have asked for, but it didn't.

Example:
Line #4:
VS = 5 volts
R1 = 470 ohms
R2 = 1,000 ohms

RT = R1 + R2 = 1,470 ohms

VR1 = VS ( R1/RT ) = 5 (470 / 1,470) = 1.598... volts
VR2 = VS ( R2/RT ) = 5 (1,000 / 1,470) = 3.401 volts

(Notice that VR1 + VR2 always = VS.)

IT = VS / RT = 5 / 1,470 = 0.0034 Amperes = 3.4 mA (milliamps)

The power supplied by the battery is (VS)²/RT = 0.017 watt ,
but it doesn't ask for that.

And that's it ! That's everything you need. Go get 'em, champ !

Related Questions

A suspect is leading the police on a car chase. The officer reports that the suspect is traveling north at 100 miles per hour. The officer has reported the suspect's
Compare the characteristics of 4d orbitals and 3d orbitals and compared the following sentences. Check all that apply4d orbitals would __________ than 3d orbitalsa. be a closer to the nucleus b. be larger in sizec. hold more electionsd.have different shapese.have more nodes
If two solutions have unequal concentrations of a solute, the solution with the lower concentration is called
Which is a chemical change
Which explanation of the solar system best fits the observations of the planets and how they orbit the sun? (Points : 3) The gravity of a large, massive star passing the sun ripped off blobs of material from it that formed the planets.The planets formed at the center of a collapsing spinning cloud of gas and dust. The sun and planets formed from a collapsing spinning cloud of gas and dust. A comet hit the sun and sent off fragments that became the planets.

What is the magnitude of a vector if the x component is - 12 m and the y component is 21m?290m

17m

24m

580m

Answers

Answer:

v = 24 m

Explanation:

Given that,

The x component of the vector = 12 m

The y component of the vector = 21 m

We need to find the magnitude of a vector. It can be solved as follows :

$v=√(12^2+21^2) \n\n=24.18\ m$

v = 24 m

So, the magnitude of the vector is equal to 24 m.

Why would you expect sodium (Na) to react strongly with chlorine (Cl)?1. They both need to lose one electron.
2. They both need to gain one electron.
3. Sodium needs to lose one electron, and chlorine needs to gain one electron.
4. Sodium needs to gain one electron, and chlorine needs to lose one electron.

Answers

Answer: The correct option is (3) " Sodium needs to lose one electron, and chlorine needs to gain one electron ".

Explanation :

The electronic configuration of sodium (Na) is $1s^2\ 2s^2\ 2p^6\ 3s^1$ . It has only one vacant electron.

While the electronic configuration of chlorine is $1s^2\ 2s^2\ 2p^6\ 3s^2\ 3p^5$ . It has seven valance electrons.

When Na reacts with Cl, Na will lose one electron and this lost electron gets transferred to chlorine. This forms a strong ionic bond.

So, the correct option is (3) " Sodium needs to lose one electron, and chlorine needs to gain one electron ".

3. is the answer, Sodium needs to lose one electron, and chlorine needs to gain one electron. This is because Sodium's row always wants to give away an electron, while Chlorine's row wants to gain an electron.

PLEASE HELP!! Use the information below to solve this problem: A note has a wavelength of 0.65551 m. If the speed of sound is 343.00 m/s, what pitch is this note? speed of sound in air: 343 m/s

A. 440.00 Hz
B. 493.88 Hz
C. 523.25 Hz
D. 587.33 Hz
E. 659.26 Hz
F. 698.46 Hz
G. 783.99 Hz

Answers

Answer:

Explanation:

Given that a note has a wavelength of 0.65551 m. If the speed of sound is 343.00 m/s, the pitch of the note is the same as the frequency.

Sound Velocity = product of frequency and wavelength.

Substitute wave speed and wavelength into the formula

343 = f × 0.65551

Make f the subject of formula

F = 343 / 0.65551

F = 523.58 Henz

Therefore, the pitch of the note is 523.52 Hz approximately

The correct answer is option C

________ is the ability to do work.
A. Force
B. Joules
C. Power
D. Energy

Answers

energy is the ability to do work so a

D is the answer, because you use your energy and that makes you capable to do work

[URGENT] A swimmer wants to end up at a dock due north of her starting position on the south shore of a river. In still water her maximum speed is 1.25m/s. The river has a current flowing 0.35m/s [E].a.) calculate the direction that she must aim herself through the water to arrive at the dock.

b.) how long will it take for the swimmer to cross the river, if the distance from the starting point to the dock is 300 m?

Please show all your work, thanks

Answers

a)The direction that she must aim herself through the water to arrive at the dock will be 73.7°.

b)The time it takes for the swimmer to cross the river will be 240 seconds.

What is speed?

Speed is defined as the rate of change of the distance or the height attained. it is a time-based quantity. it is denoted by u for the initial speed while v for the final speed. its si unit is m/sec.

Given data;

The maximum speed of the swimmer In still water,v=1.25m/s.

Speed of river = 0.35m/s [E]

α is the direction that she must aim herself through the water to arrive at the dock.

t is the time it takes for the swimmer to cross the river

The distance from the starting point to the dock is,s = 300 m

If the swimmer were to swim straight, the water's speed along the x-axis would have to match that of the swimmer.

$\rm v_w = v_x = 0.35 \ m/sec$

α is the angle between vx and v

The value of the

$\rm cos \alpha = (v_x)/(v) \n\n \alpha = cos ^(-1)((0.35)/(1.25) )\n\n \alpha = 73.7 ^0$

The time that the swimmer will use for reaching the dock;

s = V×t

t = s/(v)

t=300 m / 1.25 m/sec

t = 240 seconds

Hence, the direction that she must aim herself through the water to arrive at the dock. and it takes for the swimmer to cross the river will be 73.7° and 240 seconds respectively.

To learn more about the speed refer to the link;

brainly.com/question/7359669

#SPJ2

Explanation:

As you can see in the picture, we want the swimmer to go on a straight line, so the speed of the water must be equal to the speed of the swimmer along the x-axis. We also know the value of v, so we can calculate the of the cosine of the angle (alpha) between Vx and V. Thanks to the fundamental relation of gioniometry (cos^2(x) + sin^2(x) = 1) we can find the sine of alpha and calculate Vy. With Vy we can calculate the time that the swimmer will use for reaching the dock: s = Vy * t => t = s/(Vy).

I'll let you do all the calculations, you just have to plug in values.

10 pointsTrue or False? Charging by friction happens when you rub two objects
together and PROTONS move from one object to the other.