In the circuit shown in Fig. E26.17, the voltage across the 2.00 Ω resistor is 12.0 V. What are the emf of the battery and the current through the 6.00 Ω resistor?
Answers
The emf of the battery of the given circuit is 18 volts and the current through the 6 ohm resistor is 3A.
What is ohm's law?In a current carrying conductor, the voltage difference V is directly proportional to the current I through the conductor. The constant is called the resistance R.
i.e V=IR.
Emf of the battery is equal to e = V1 +V2
Current through 2 ohm resistor, I2 = V2 /R
I2 = 12/2
I2 =6 A
Voltage through 1 ohm resistor V1 = I1 R
V1 = 6 x 1 =6 volts
Emf of the battery E = 6+12 =18 volts.
The current through 6 ohm resistor is
I = 18 /6 = 3 A
Thus, emf of the battery is 18 volts and the current through the 6 ohm resistor is 3A.
Learn more about ohm's law.
https://brainly.com/question/18827428
#SPJ1
Related Questions
If a power source provides 54 watts of power to operate a machine that draws 4.5 amps of current when in use, what is the voltage used by the machine?
Answers
Answer:
.V=12v
Explanation:
P=VI
54W=V×4.5A
V=54W/4.5A
V=12V
What is the radius of a cone with a volume of 96π cubic inches and a height of 18 inches? 1. rewrite the formula using the base area: 2. substitute the values into formula: 3. simplify the right side: 4. undo the multiplication of 6π: 5. undo the square: what is the radius of the cone? inches v = one-third pi r squared h. 96 pi = one-third pi r squared (18). 96 pi = 6 pi r squared. 16 = r squared. startroot 16 endroot = startroot r squared endroot.
Answers
Based on the calculations, the radius of this cone is equal to 4 inches.
How to calculate the radius of a cone?Mathematically, the volume of a cone is calculated by using this formula:
V = 1/3 × r²h
Where:
h is the height.r is the radius.Making r the subject of formula, we have:
r = √(3V/πh)
Substituting the given parameters into the formula, we have;
r = √(3 × 96π/π × 18)
r = √(288/18)
r = √16
Radius, r = 4 inches.
Read more on radius here: https://brainly.com/question/10584345
#SPJ4
calculate area triangle 15*20
Answers
Answer:
300
Explanation:
15 * 20 = 30
15 *
20 =
——
300
Consider a man walking around a house in a rectangle pattern. He walks 70 feet across the front, 30 feet along the side, 70 feet along the back, and 30 feet along the other side o bring him back to where he began. How much distance did this man cover?
200 feet
100 feet
140 feet
70 feet
Answers
Answer:
200ft
Explanation:
To find out how much distance the man covered, you need to find the perimeter of the rectangle. To find the perimeter of a rectangle, the formula is:
P = (L + H) × 2
Step 1
Plug in the values for L and H.
P = (70 + 30) × 2
Step 2
Add 70 and 30, because you need to add parentheses first.
P = (100) × 2
Step 3
Remove parentheses, and multiply 100 by 2.
P = 100 × 2
P = 200
Thus, the man walked 200 feet in distance.
A train travels a distance of 1275 m at 92.1 m/s how long does it take?
1180 s
117.000 s
13.85
0.0722 s
Answers
The time taken by the train will be 13.84 sec. Time taken is the ratio of the distance and speed.
What is distance?Distance is a numerical representation of the distance between two objects or locations.
Distance can refer to a physical length or an estimate based on other factors in physics or common use. |AB| is a symbol for the distance between two points A and B.
Distance is found as the product of the speed and velocity.
Distance = speed × time
time = Distance/speed
time= 1275 (m)/92.1( m/sec)
time(t) =13.84 sec
Hence, the time taken by the train will be 13.84 sec
To learn more about the distance, refer to the link;
https://brainly.com/question/26711747
#SPJ1
Select the most accurate summary of kaku’s argument. newton’s scientific study transformed knowledge of the ocean and encouraged countless transformative inventions. newton’s discoveries led to the invention of machines and the beginning of an industrialized society. newton’s invention of the steam engine revolutionized transportation around the world. newton’s followers invented the machines that later stimulated factory productivity and success.
Answers
The most accurate summary of kaku’s argument is Newton’s discoveries led to the invention of machines and the beginning of an industrialized society.
What was Isaac Newton's most important discovery?According to her, “two bodies attract each other with a force proportional to their masses and inversely proportional to the square of the distance separating their centers of gravity”. With this discovery, Newton eliminated dependence on divine action and began modern science.
The text is about the achievements of Newton that led to the industrial progress, having strong impact on many generations incuding modern generations.
See more about newtons law at brainly.com/question/13549064
#SPJ4
Answer:
Newton’s discoveries led to the invention of machines and the beginning of an industrialized society.
Explanation:
What kind of atmosphere surrounds mercury?
none
carbon dioxide
methane
dense clouds
Answers
Answer:
None
Explanation:
Mercury does not have a atmosphere because it is simply to hot. Because of its temperature it's atmosphere is constantly being replenished as the atoms escape into space.
After reading the passage about acupuncture, identify which scientific claim explains why some people say acupuncture does not truly relieve pain.
Answers
Answer:
The answer would be "This ancient form of pain relief and stimulation is said to benefit patients by blocking channels which practitioners claim
Explanation:
Answer:
It provides only a placebo effect.
Explanation:
Edge
what evidence is there suggesting ellipticals may form from the mergers of 2 or more spiral galaxies
Answers
Elliptical galaxies could be formed by the collision and merging of two spiral galaxies.
What is galaxy?Galaxy is the huge collection of stars, interstellar gases, dust particles, stones. Galaxies tend to come in two shapes such as spirals and ellipticals.
In spiral galaxies, the stars orbit in a very thin disk, and all the stars move in the same direction. Two or more spiral arms wind around the center just like a pinwheel.
Selecting a sample of about 50 spiral galaxies that have collided and in the process of merging into a single object. We took infrared images using the UH 88-inch (2.2-meter) telescope, and obtained spectra of these mergers using one of the Keck telescopes.
Infrared images are used to see, if the starlight in these objects decreases with distance from the center of the galaxy the way it does in spirals or the way it does in ellipticals. The light intensity decreases exponentially in outward direction from the centers of spirals, but it declines much more slowly with distance from the center for ellipticals. It is found that at least 45 out of 51 mergers are ellipticals.
Thus, most of these mergers really are evolving into elliptical galaxies.
Learn more about galaxy.
https://brainly.com/question/24836631
#SPJ1
Chris shines a white light onto a surface, and the surface appears to be green. What color will the surface appear if he shines a combination of blue and green light on the surface?.
Answers
Answer: just realized this is more advanced physics so if this doesn't seem right I apologize, I had a really bad physics teacher lol. So ignore this for now!
Hey there! I think this might just be basic color mixing! The color would be a turquoise
Explanation: R G B make up our visible light spectrum. This has documented graphs. Through basic use of one, you can determine that the color would be a blue-green, commonly referred to as turquoise! There are many more color combinations then just this one as well!
A monochromatic beam of light is absorbed by a collection of ground-state hydrogen atoms in such a way that three different wavelengths are observed when the hydrogen relaxes back to the ground state.
Answers
Answer:
If the absorbed beam is monochromatic (one wavelength) then it excites the H atom to some state n.
When that state decays, some of the atoms may decay to state 1, others to state 2, and still others to state 3
The net energy emitted in such a case would depend on:
n -1, n - 2, n - 3 which would produce 3 different wavelengths
What happens when oxygen comes in contact with NOx and VOCs?
1. They combine to create ozone to replenish the ozone layer.
2. Oxygen neutralizes NOx and VOCs.
3. They combine to form low altitude ozone.
4. They combine to form smog.
Answers
When oxygen comes in contact with NOx and VOCs They combine to create ozone to replenish the ozone layer. Option A is correct.
What is an ozone layer?The layer form on the stratosphere region of the earth, which absorbs most of the ultraviolet rays.
The ultraviolet rays come from the sun are very harmful, increases global warming when enter inside the ozone layer due to its deplection.
When oxygen comes in contact with NOx and VOCs They combine to create ozone to replenish the ozone layer.
Hence, option A is correct.
To learn more about the ozone layer, refer to the link;
https://brainly.com/question/14330630
#SPJ1
If viewed at the correct time and in the right conditions, asteroids, comets, and meteors are all visible to the nked eye.
true or false
Answers
Answer:
True
Explanation:
If it is at right conditions and correct time (night time most likely) they will all be visible
Mutations and New Traits. Before watching the video, list one or two questions you may have about mutations. Alternatively, you can list a few things you already know about mutations.
Answers
Answer:
No, there are multiple ways in which different mutations in the same gene can cause the same phenotype
Explanation:
Several different mechanisms of mutation can lead to the same phenotype. For example, lets say our phenotype is that flies have white eyes, and we know that this occurs in one particular gene that normally makes the eye colour red. (the red gene)
These mutations likely rendered the red gene ineffective (as the eyes are not red). However, this could happen in a variety of ways.
There could be a single base deletion in the first exon of the mRNA, changing the reading frame of the protein and messing up the entire sequence (a frame shift mutations)
The entire gene could be deleted
A single base could be substituted in an important site of the gene, for example, one which translates into a catalytic residue or binding site in the protein
There could be an inversion at the promoter region of the gene, such that a transcription factor can no longer bind to transcribe the gene.
There are countless other ways in which a mutation could have been caused. Therefore, just because we know the same gene is affected does not mean that we can assume the mutations are identical.
A positive charge is placed in the center of an uncharged metal spherical shell with some thickness as shown above.
1. Draw the electric field that exists inside the empty volume enclosed by the shell.
(Empty except for
the positive charge.) Explain your drawing either in words or through use of a
diagram, or both.
2. Draw the electric field that exists inside the metal shell. Explain your drawing
either in words or
through use of a diagram, or both.
3. Draw the electric field that exists outside of the metal shell. Explain your drawing
either in words or
through use of a diagram, or both.
Answers
The drawing of the positive charge showing the electrical fields inside the empty volume enclosed by the shell is attached accordingly. See explanation below.
What is the explanation of the drawing the positive charge inside the center of the uncharged spherical metal?The electrostatic potential at any location outside the shell, assuming the center of the shell is Z, equals Z/4π∈₁r, where r is the distance from O.
It's also worth noting that the spherical shell's outer surface is an equipotential shell, which means that the electric field at any place inside the shell except O is zero.
Because the shell is metallic, charge Z will induce uniformly on the inner surface and +Z will induce uniformly on the outer surface, with O as the charge center.
As a result, an electric field will exist both within and outside the shell, but the total charge will remain the same.
Learn more about Electric Fields at:
https://brainly.com/question/14372859
#SPJ1
The force of gravity on an object varies directly with its mass. The constant of variation due to gravity is 32. 2 feet per second squared. Which equation represents F, the force on an object due to gravity according to m, the object’s mass? F = 16. 1m F = F equals StartFraction 16. 1 Over m squared EndFraction. F = 32. 2m F = F equals StartFraction 32. 2 Over m squared EndFraction.
Answers
Answer:
F = 32.2 m
Explanation:
F = ma
F = m * 32.2
what is collinear and concurrent
Answers
Answer:
Collinear Force System: When the lines of action of all the forces of a system act along the same line, this force system is called collinear force system. Concurrent Force System: The forces when extended pass through a single point and the point is called point of concurrency.
Coffee or certain cola drinks can be used to test the effect of __________ on reaction time. What drug completes the sentence?
Answers
Answer:
"caffeine" both products contain this compound
a 55kg skater is speeding towards a ramp. if the skater reaches a height of 0.8m before coming to a stop, how fast was the skater going in the beginning? ignore any friction.
Answers
Answer:
3.96 meters / sec
Explanation:
The skaters Kinetic Energy is converted to Potential Energy ( ignoring friction)
KE = PE
1/2 * 55 * v^2 = 55 * 9.81 * .8
solve for v = 3.96 m/s
Question 12 A wave has a wavelength of 7.96 m and travels at 30.67 m/s. What is the frequency of the wave?
Answers
Answer:
0.2597hertz
Explanation:
first of all we have to calculate time.
time is given by speed/distance
hence=30.67/7.96
=3.85s
frequency is given by 1/time
=1/3.85
=0.2597hertz
The half-life of gold-198 is 2.7 days. After 5.4 days, how much of the original gold-198 remains?
A. one-half B. one-quarter C. all D. none
Answers
The the amount of the original gold-198 that remains after 5.4 days is one-quarter.
What is half-life?Half-life is the time required or taken for half the amount of matter present in a given substance to vanish or decay.
The half-life of gold-198 is 2.7 days.
After, 5.4 days, the gold would have undergone two half-lives.
The amount of matter remaining = 1/2 * 1/2 = 1/4
Therefore, the amount of the original gold-198 that remains is one-quarter.
Learn more about half-life at: https://brainly.com/question/26689704
#SPJ1
Explain the roles of the sympathetic division and parsympathetic division of the ANS in a fear response.(this is for psychology class,thank you very much)
Answers
Answer:
The parasympathetic division increases digestive activity and the sympathetic division decreases it. The Sympathetic Division of the ANS is responsible for mobilizing the body in response to situations that are threatening or otherwise exciting.
Explanation:
Have a great rest of your day
#TheWizzer
Answer:
What he said :3
Explanation:
Have a LOVELY~ day
-Roxanne Wolf
P.S: Novy made this picture for mwe UWU
A driver traveling at 39.2 m/s spots a cop are and
hits the break. If he is able to brake for 2.1 seconds
and he accelerates at a rate of -7.6 m/s?, what is
his final speed?
Answers
Answer:
23.24 m/s
Explanation:
2.1 s * (-7.6 m/s^2) = - 15.96 m/s from original speed
39.2 - 15.96 = 23.24 m/s
A motorcycle starts 20m west of a reference point. It moves at a constant velocity for 5s, reaching a position of 10m east of the reference point.
What is the motorcycle’s average velocity?
Answers
The motorcycle's average velocity will be 6 m/sec. The ratio of the overall distance traveled to the total time taken by the body is the average velocity.
What is average velocity?The average velocity is the ratio of the total distance traveled to the total time taken by the body. Its unit is m/sec.
Total distance travelled by the motorcycle;
d=20 m+10 m
d=30 m
The average velocity is found as;
[tex]\rm v_{avg}=\frac{d}{t} \\\\ \rm v_{avg}=\frac{30}{5} \\\\ v_{avg}= 6 \ m /sec[/tex]
Hence,the motorcycle’s average velocity will be 6 m/sec.
To learn more about the average velocity refer to the link;
https://brainly.com/question/862972
#SPJ1
Explain how nuclear physics works?
Answers
Answer:
Nuclear physics are the study of protons, and neutrons at the center of an atom. This study shows the interactions between atoms, including what holds them together in a small space. Nuclear physics include fission, fusion, and decay.
can some one solve this for me please
Answers
#solid in liquid
gelatin#solid in gas
Dry ice(CO2)#solid in solid
synthesized gems#solid in liquid
magma#Liquid in a gas
MethaneIs quartzite a mineral, a rock, or neither?
Answers
Compare the temperature changes in the stratosphere with those in the troposphere.
Answers
Answer:
the temperature in the troposphere decreases while the temperature in the stratosphere increases because of the density of air molecules.
Explanation:
sorry ima little late
Which is not a formal planet?
A: neptune
B: uranus
C: saturn
D: jupiter
E: pluto
Answers
Answer:
Pluto
Explanation:
Pluto is now classified as a dwarf planet It used to be a formal planet but not anymore.
A flashlight is shined against the mirror at the angle of incident of 27 degrees * At what angle from the normal would you be able to see this light?
Answers
Answer:mirror
Explanation:
at an angle of 42° from the surface of the mirror. What angle does the reflected ray make with the normal Ans. 42° 2. A ray of light hits a mirror at 27° from the normal.
