Three resistors of 4. 0, 6. 0, and 10. 0 ω are connected in parallel. if the combination is connected in series with a 12. 0-v battery and a 2. 0-ω resistor, what is the current through the 10. 0-ω resistor
Answers
The current through the 10 Ω resistor is 0.586A which is connected with a resistor in series combination.
Voltage divides in a Series combination and current divides in a parallel combination.
Let the three resistors joined in parallel be R₁, R₂, R₃
where, R₁= 4 Ω
R₂ = 6 Ω
R₃ = 10 Ω
Given, a battery of 12V and a 2Ω resistor say r is series with the parallel combination.
Equivalent resistance(R) in parallel combination is:
1/R = 1/R₁ + 1/R₂ + 1/R₃
1/R = 1/4 + 1/6 + 1/10
On solving, R = 1.9 Ω
Now, the Equivalent resistance(R) of parallel combination is in series with r = 2Ω
Let Equivalent resistance of Series combination be R'
R' = R + r
R' = 1.9 + 2 Ω
R' = 3.9 Ω
Now let's calculate the voltage drop in the resistor r = 2Ω
v = i × r where, i is the current in r and v is the voltage drop across r
v = 3.07 × 2
v = 6.14V
Voltage drop, V' across the Equivalent resistance(R) in parallel combination = Total voltage - voltage drop in the resistor r
V' = 12 - 6.14 V
V' = 5.86V
Now, the Voltage drop, V' across the Equivalent resistance(R) in parallel combination is same for all the three resistors R₁, R₂, R₃
So, Voltage is same in a parallel combination.
V' = I × R₃
5.86 = I × 10
I = 0.586A
Hence, The current through the 10 Ω resistor is 0.586A
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Related Questions
which of the following is a correct statement of the ohm's law? responses a. the resistance of a conductor is always constant. a. the resistance of a conductor is always constant. b. the current in a conductor is always proportional to the potential difference across the conductor. b. the current in a conductor is always proportional to the potential difference across the conductor. c. the resistance of a conductor increases with increasing temperature. c. the resistance of a conductor increases with increasing temperature. d. the resistance of a conductor is constant only if the temperature of the conductor is constant.
Answers
Correct statement of the ohm's law is the current in a conductor is always proportional to the potential difference across the conductor.
What is Ohm's law's resistance?According to Ohm's law, the voltage across two places is precisely proportional to the current flowing through a conductor between them. As a result, V = RI, where R is the resistance constant. R is influenced by the conductor's material, size, and other factors. Ohm () is its SI unit.In accordance with Ohm's law, as the current increases, the voltage will follow suit. So, the appropriate choice is As resistance rises, current rises. Ohm's Law Declaration: According to Ohm's law, when all other physical parameters, including temperature, are held constant, the voltage across a conductor is directly proportional to the current flowing through it.To learn more about ohm's law refer to:
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give the 5 concepts of physical activity and give a short example each
Answers
Answer:
The 5 components of physical fitness are often used in our school systems, health clubs and fitness centers to gauge how good a shape we are truly in. The 5 components that make up total fitness are:
• Cardiovascular Endurance
• Muscular Strength
Muscular endurance
Flexibility
Body Composition
Total fitness can be defined by how well the body performs in each one of the components of physical fitness as a whole. It is not enough to be able to bench press your body weight. You also need to determine how well you can handle running a mile etc.
Explanation:
hope to help
if the velocity of an object is v=-5t 30, at what time does it change direction?A. t = 6B. t = 5C. t = 3D. t = 2E. t = 0
Answers
The object changes direction at time t = 6 (option A).
The concept of velocity is closely related to acceleration, which is the rate at which an object changes its velocity. If an object is accelerating, its velocity is changing, either in magnitude or direction, or both. Acceleration is also a vector quantity and is typically measured in meters per second squared (m/s^2) or other appropriate units.
To find the time when the object changes direction with a velocity function of v=-5t + 30, you need to find when the velocity equals zero, as this is the point where the object changes direction.
1. Set the velocity function to zero: 0 = -5t + 30
2. Solve for t: 5t = 30
3. Divide both sides by 5: t = 6
So, the object changes direction at time t = 6 (option A).
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Generdador = Generator Trabsformador = electric transformer Linea de transmisión = Transmission line Carga = electric charge Motor = Engine KVA = KILOVOLTAMPER
Answers
The term "KVA" stands for "Kilovolt-Ampere," which is a unit used to measure apparent power in an electrical system.
What is the purpose of an electric transformer in an electrical power system?KVA stands for kilovolt-amperes, which is a unit of apparent power in an electrical system. It represents the product of the voltage (in kilovolts) and the current (in amperes) in an AC circuit. The KVA rating of a generator, transformer, or any electrical equipment indicates its maximum power capacity.
Generador = Generator: A device that converts mechanical energy into electrical energy. It typically consists of an engine or motor that drives a rotating shaft, connected to an electrical generator, which produces electricity.
Transformador = Transformer: An electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. Transformers are commonly used to step up or step down the voltage levels in an electrical system, allowing efficient transmission and distribution of electricity.
Línea de transmisión = Transmission line: A system of conductors, such as overhead lines or underground cables, used to transmit electrical power from the generation source (such as a power plant or a generator) to the load (consumers or other electrical systems). Transmission lines are designed to minimize power losses and maintain voltage levels over long distances.
Carga = Electric charge: The property of matter that causes it to experience a force when placed in an electric field. Electric charge can be positive or negative, and it is responsible for the flow of electric current in a conductor.
Motor = Engine: A machine that converts various forms of energy into mechanical energy. Engines are commonly used to convert chemical energy (from fuels like gasoline or diesel) or electrical energy into mechanical work, such as the rotational motion of a shaft. Engines are widely used in vehicles, industrial machinery, and other applications.
Please note that while I have provided general definitions for these terms, there can be more technical details and variations depending on the specific context and application.
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What is the measure of angle wxy? 73° 90° 107° 163°
Answers
The measure of the angle WXY after applying appropriate propertiy is ∠WXY = 107°.
What is angle sum property of a quadrilateral?The angle sum property of a quadrilateral states that the sum of the interior angles of any quadrilateral is always equal to 360 degrees. This means that if you draw any quadrilateral, such as a square, rectangle, or parallelogram, and measure the angles inside the shape, the total of all those angles will always add up to 360 degrees.
Given a structure WXYZ with measure of ∠Y = ∠Z = 90° and ∠W=73°.
We have to find measure of ∠X .
Since, WXYZ is a closed figure having 4 sides, so it is a quadrilateral.
ANGLE SUM PROPERTY OF QUADRILATERAL
Sum of angles of a quadrilateral is always 360°
Thus, applying angle sum property to the given quadrilateral.
∠Y + ∠Z + ∠W + ∠X = 360°
90° + 90° + 73° + ∠X = 360°
253° + ∠X = 360°
∠X = 360° -253°
∠X = 107°
Thus, measure of angle ∠WXY = 107°.
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Answer:
WXY= 107
Explanation:
just did it
buildings
do not absorb much heat.
can affect the surface albedo.
have a net cooling effect on urban environments.
have a net effect of cooler evenings in urban environments.
can affect the surface albedo.
Answers
Buildings can affect the surface albedo.
The surface is the outermost or uppermost layer of a physical item or area. it is the element or place of the object which could first be perceived by an observer through the usage of the senses of sight and contact and is the component with which other materials first engage.
A surface is the outermost layer of any physical object. it is the part of the object that may be perceived by an observer using their experience of sight and touch and is the portion with which surrounding substances first engage.
The chemical and mechanical residences include chemical composition, grain, hardness, energy, and inhomogeneities.
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Are carbon compounds rigid and strong
Answers
A sound wave with a power of 8. 8 × 10–4 W leaves a speaker and passes through section A, which has an area of 5. 0 m2. What is the intensity of sound in this area? (Intensity = I = ) 1. 8 × 10–4 W/m2 1. 8 × 10–6 W/m2 1. 6 × 10–4 W/m2 1. 6 × 10–6 W/m2.
Answers
The intensity of sound can be calculated using the formula: Intensity (I) = Power (P) / Area (A).Plugging in the given values, we have: Intensity (I) = 8.8 × 10^-4 W / 5.0 m^2.
Calculating this expression gives us an intensity of 1.76 × 10^-4 W/m^2.
Therefore, the correct answer is: 1.6 × 10^-4 W/m^2.
The intensity of sound represents the amount of power per unit area. It is calculated by dividing the power of the sound wave by the area through which it is passing. In this case, the given power is 8.8 × 10^-4 W, and the area is 5.0 m^2. Dividing the power by the area gives us an intensity of 1.76 × 10^-4 W/m^2.
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this is a 3 part question6) (a) Your heart beats with a frequency of 1.45 Hz. How many beats occur in a minute? (b) If the frequency of your heartbeat increases, will the number of beats in a minute increase, decrease, or stay the same? (c) How many beats occur in a minute if the frequency increases to 1.55 Hz?
Answers
Given,
The initial frequency of the heartbeat, f₁=1.45 Hz
The increased heartbeat, f₂=1.55 Hz
The frequency of the heartbeat can be described as the number of occurence of the heartbeat per second. That is every second, the heart beats 1.45 times.
(a)
Thus for a minute, the number of the heartbeats is,
\(\begin{gathered} N_1=f_1\times60 \\ =1.45\times60=87 \end{gathered}\)Thus 87 beats occur for a minute.
(b)The increase in the frequency of the heartbeat implies the increase in the number of the heartbeat for every second. And hence the beats in a minute increase when the frequency of the heartbeat increases.
(c)
The number of the beats per minute after the increase of the frequency is,
\(\begin{gathered} N_2=f_2\times60 \\ =1.55\times60 \\ =93 \end{gathered}\)Thus after the increase in the frequency, 93 beats occur in a minute.
why is there a temperature difference between sand and water?
Answers
Both have temperature differences due to differences in their heat capacities and thermal conductivities.
Why there is a temperature difference between sand and waterThere is a temperature difference between sand and water because they have different heat capacities and thermal conductivities.
Water has a higher heat capacity, meaning it can absorb more heat before its temperature increases, while sand has a lower heat capacity.
Additionally, water has a higher thermal conductivity, meaning it can transfer heat more efficiently than sand. These differences in thermal properties cause sand and water to heat up and cool down at different rates, resulting in temperature differences between them.
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'If you increase the frequency of a sound wave four times, what will happen to its speed?
ОА.
The speed will increase four times.
OB.
The speed will decrease four times.
O c.
The speed will remain the same.
OD
The speed will increase twice.
O E.
The speed will decrease twice.
Answers
An ambulance emits a frequency of 450 Hz from its siren. What frequency is heard by a man as the ambulance moves toward him? less than 450 Hz more than 450 Hz 450 Hz 0 Hz.
Answers
Frequency is defined as the number of repetitions of waves occurring in 1 second. The frequency heard by the man as the ambulance move toward him will be greater than 450 Hz.
What is the frequency ?Frequency is defined as the number of cycles completed in 1 second. Frequency is given by the formula as,
\(\rm{Frequency =\frac{1}{time } }\)
As the formula shows frequency is inversely proportional to the time that shows if the time is decreasing frequency will increase and vice versa.
In the above case, the ambulance is moving toward the men. So that the time to meet up is decreased that's why the frequency will be greater than the initial frequency from the siren.
Hence the frequency heard by the man as the ambulance move toward him will be greater than 450 Hz.
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Answer: the answer is b more than 450 hz
Explanation: i took the test
the period of motion of an object-spring system is t = 0.570 s when an object of mass m = 212 g is attached to the spring. (a) find the frequency of motion in hertz.
Answers
The frequency of motion for the object-spring system is approximately 1.754 Hz.
The frequency of motion can be found using the formula:
f = 1 / T
Given the period of motion (T) for the object-spring system is 0.570 s, we can find the frequency (f) of motion in hertz (Hz) using the following formula: f = 1/T
where T is the period of motion. In this case, T = 0.570 s.
Plugging in the given period:
f = 1/0.570 s
f = 1.754 Hz
Therefore, the frequency of motion is 1.754 Hz.
So, the frequency of motion for the object-spring system is approximately 1.754 Hz.
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Inside most ball-point pens is a small spring that compresses as the pen is pressed against the paper. If a force of 0.1 N compresses the pen's spring a distance of 0.005 m, what is the spring constant of the tiny spring?
Answers
Answer:
20 N/m
Explanation:
From the question,
The ball-point pen obays hook's law.
From hook's law,
F = ke............................ Equation 1
Where F = Force, k = spring constant, e = compression.
Make k the subject of the equation
k = F/e........................ Equation 2
Given: F = 0.1 N, e = 0.005 m.
Substitute these values into equation 2
k = 0.1/0.005
k = 20 N/m.
Hence the spring constant of the tiny spring is 20 N/m
Use the following information to answer the next question.
Intensity vs. Wavelength of Electromagnetic Radiation Incident on Planet Omega
Creatures that live on Planet Omega have antennae that are sensitive to the most common type of electromagnetic radiation on the planet. From the graph above, the antennae of these creatures are most sensitive to wavelengths that range from
A) 1.0 x10^-7 m to 2.0 x10^-8 m
B) 3.0x10^-8 m to 5.5 x 10^-8 m
C) 7.0x 10^-8 m to 8.5 x 10^-8 m
D)8.5x 10^-8 m to 1.0 x 10^-7 m
Answers
Answer:
C) 7.0x10^-8 m to 8.5x10^-8 m.
Explanation:
Based on the given information, the antennae of the creatures on Planet Omega are most sensitive to wavelengths that range from 7.0x10^-8 m to 8.5x10^-8 m.
What is the mechanism that allows species to change over time?
Answers
Answer:
Evolution, mutation of genes
Explanation:
Evolution is the primary reason of undergo changes in speicies.There is also another reason why, which is the genetic mutation a creature has, like a toad becomes albino.
The following ratio is called:
A.efficiency
B.ideal mechanical advantage
C.actual mechanical advantage
D.torque
Answers
Answer:
B
Explanation:
How is it possible to lift a heavy car with a small force?
Answers
Answer:
By applying relative small force to the smaller piston
Explanation:
If a car sits on top of the large piston, it can be lifted by applying a relatively small force to the smaller piston, the ratio of the forces being equal to the ratio of the areas of the pistons
is this right, please answer
Answers
The eyes, spinal cord, and brain are all main or key parts of the nervous system.
A 2.0 cm tall object is 22 cm in front of a diverging lens that has a −30 cm
focal length.
(A) Calculate the image position.
(B) Calculate the image height. Type a positive value if the image is upright and a negative value if it is inverted.
Answers
A. Therefore, the image is formed 12.7 cm behind the lens.
B. Therefore, the image height is 1.15 cm, and it is upright (positive magnification value).
The image position and height for the given scenario, we can use the lens equation and magnification equation:
1/f = 1/do - 1/di
m = -di/do
where f is the focal length of the lens, do is the object distance (distance of object from the lens), di is the image distance (distance of image from the lens), and m is the magnification of the image.
(A) Calculate the image position:
Given, f = -30 cm (negative sign indicates a diverging lens) and do = 22 cm.
Using the lens equation, we can solve for di:
1/f = 1/do - 1/di
1/-30 = 1/22 - 1/di
-0.0333 = 0.0455 - 1/di
-0.0788 = -1/di
di = 12.7 cm
Therefore, the image is formed 12.7 cm behind the lens.
(B) Calculate the image height:
To calculate the image height, we can use the magnification equation:
m = -di/do
m = -12.7/22
m = -0.577
hi = -h x m
hi = -2.0 x (-0.577)
hi = 1.15 cm
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Order: Run the following IV's consecutively over the next 24 hours. (1) 1000 mL RL (2) 500 mL DENS (3) 1000 mL DsW 1. Calculate the total volume per minute using a standard macrodrip tubing 10 gtts/ml 2. Calculate the total volume per minute using a macrodrip tubing in which 25gtts = 1ml. Refer to the study guide for IV's
Answers
The total volume per minute using a standard macrodrip tubing (10 gtts/ml) is 34 drops/minute. The total volume per minute using a macrodrip tubing where 25 gtts = 1 ml is 14 drops/minute.
Calculation:
Total volume per minute using standard macrodrip tubing (10 gtts/ml):
To calculate the total volume per minute, we need to determine the total number of drops and convert it to milliliters per minute.
Given:
IV 1: 1000 mL RL
IV 2: 500 mL DENS
IV 3: 1000 mL DsW
Using a macrodrip tubing (10 gtts/ml):
IV 1: 1000 mL RL = 1000 * 10 = 10,000 drops
IV 2: 500 mL DENS = 500 * 10 = 5,000 drops
IV 3: 1000 mL DsW = 1000 * 10 = 10,000 drops
Total drops = 10,000 + 5,000 + 10,000 = 25,000 drops
Converting drops to milliliters per minute:
25,000 drops / 10 gtts/ml = 2,500 ml / minute
2,500 ml / minute ≈ 34 drops / minute
The total volume per minute using standard macrodrip tubing is approximately 34 drops/minute.
Total volume per minute using macrodrip tubing (25 gtts = 1 ml):
To calculate the total volume per minute, we need to determine the total number of drops and convert it to milliliters per minute.
Given:
IV 1: 1000 mL RL
IV 2: 500 mL DENS
IV 3: 1000 mL DsW
Using a macrodrip tubing (25 gtts/ml):
IV 1: 1000 mL RL = 1000 / 25 = 40 ml
IV 2: 500 mL DENS = 500 / 25 = 20 ml
IV 3: 1000 mL DsW = 1000 / 25 = 40 ml
Total volume = 40 ml + 20 ml + 40 ml = 100 ml
Converting milliliters to drops per minute:
100 ml * 25 gtts/ml = 2500 drops / minute
2500 drops / minute ≈ 14 drops / minute
The total volume per minute using macrodrip tubing (25 gtts = 1 ml) is approximately 14 drops/minute.
Using a standard macrodrip tubing (10 gtts/ml), the total volume per minute is approximately 34 drops/minute.
Using a macrodrip tubing where 25 gtts = 1 ml, the total volume per minute is approximately 14 drops/minute.
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Question 1
10 pts
A hypotheses should only contain the independent variable.
True
False
Answers
Answer:
false
A hypothesis states a presumed relationship between two variables in a way that can be tested with empirical data. ... The cause is called the independent variable; and the effect is called the dependent variable.
please help. Sound travels at 330 m/s. If a lightning bolt strikes the ground 5 m away from you, how long will it take for the sound of the strike to reach you?
Answers
Answer:
0.015 seconds
Explanation:
5/330=0.015
Answer:
0.015 seconds
Explanation:
divide 5 m and 330 m/s to get 0.015 seconds.
Under the current law on nutrition labeling, the Nutrition Facts
panel must include
a. total calories from trans fat
b. grams of monounsaturated fat
c. grams of total fat
d. total calories from satura
Answers
The Nutrition Facts panel must include the grams of monounsaturated fat, grams of total fat, and total calories from saturated fat.
a. The total calories from trans fat are not required to be included in the Nutrition Facts panel. Trans fat is listed separately under "Total Fat" and does not have its own specific calorie value.
b. The grams of monounsaturated fat are required to be included in the Nutrition Facts panel. Monounsaturated fat is a type of fat that is beneficial for health, and its quantity is provided to help consumers make informed choices.
c. The grams of total fat are required to be included in the Nutrition Facts panel. Total fat represents the sum of all types of fats present in the food product.
d. The total calories from saturated fat are required to be included in the Nutrition Facts panel. Saturated fat is a type of fat that is associated with an increased risk of certain health conditions, and providing the calorie value helps consumers monitor their intake.
Therefore, the Nutrition Facts panel must include b. grams of monounsaturated fat, c. grams of total fat, and d. total calories from saturated fat.
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A rollercoaster was moving from point a to b, and then to c, with the instantaneous velocity 5m/s, 15m/s, and 10m/s,
respectively. the instaneous velocity at a point between b and c could be
a)
less than 5m/s.
b)
less than 10m/s.
greater than 10m/s.
d)
greater than 15m/s.
Answers
The Instantaneous velocity between point b and c could be less than 10 m/s.
What is instantaneous velocity?
Instantaneous velocity is the velocity of an object under motion at a specific point of time.
given the following parameters;
Instantaneous velocity at point b = 15 m/sInstantaneous velocity at point c = 10 m/sInstantaneous velocity between point b and c = 15 m/s - 10 m/s = 5 m/s
Thus, the Instantaneous velocity between point b and c could be less than 10 m/s.
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How can red giants be so bright when they are so cool
Answers
Answer:
The star's luminosity rises above its previous level. Because it is so cool, the surface will be red, and it will be much farther away from the center than it was during the earlier stages of star evolution. Despite its lower surface temperature, the red giant has a large surface area, which makes it very luminous.
which planet has the closest gravity to Earth?
Answers
In terms of size, average density, mass, and surface gravity, Venus is also very similar to Earth.
Moon rocks resemble rocks from which of the following layers of the earth?
inner core
outer core
mantle
crust
Answers
Answer:mantle
Explanation:
People have vastly different opinions on the role and responsibility of schools to provide sex education. Teenage pregnancy and sexually transmitted diseases are real problems facing our adolescent population. In some cases, the decision to engage in a sexual relationship is a life or death decision.
References:
Coon, D., Mitterer, J.O., & Martini, T. (2019). Introduction to psychology: Gateways to mind and behavior (15th ed.). Belmont, CA: Cengage Learning.
Answers
Answer: ummm is this a question?
Explanation: what I said up there ^
Question 2 of 10
Why does a magnet attract a steel nail?
A. The nail becomes a permanent magnet when steel is in a
magnetic field.
B. The nail is a temporary magnet whether or not it is in a magnetic
field.
C. The iron in the steel it is attracted to anything else made of iron.
D. The iron in the steel becomes magnetized when the nail is in a
magnetic field.
Answers
A magnet attract a steel nail for the reason that nail is a temporary magnet whether or not it is in a magnetic field. The correct option is B.
What is magnet?A substance that is negatively charged at one end and positively charged at another end creating the magnetic field around it.
A nail is a magnet that can attract the particle that are charged. The nail is a temporary magnet whether or not it is in a magnetic
field.
Magnets have their own magnetic properties. They can be permanent or temporary. Magnets are made by induction or rubbing process or by cutting into small magnet pieces.
Thus, the correct option is B
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Answer:
The correct answer is:
Explanation:
the iorn in the steel becomes magnetized when the nail is in a magnetic field