1. Why is the equivalent resistance in a parallel circuit equal to the sum of the reciprocals of the individual resistances, whereas in a series circuit, the equivalent resistance is the sum of the individual resistances? ​

Answers

Answer 1

Answer: Kirchhoff first law: sum of currents coming in branch and leaving it are same.

Explanation: in parallel circuit current is divided between resistors.

In series circuit same current passes through all resistors.


Related Questions

30 POINTS PLS HELP

The picture attached has the question

Answers

Answer: cold or hot

Explanation:

A gas dissolves in a liquid most rapidly when under _______ pressure.
High

Answers

A gas dissolves in a liquid most rapidly when under High pressure.

An example of a high pressure boiler is one that produces energy in thermal power plants that runs at 80 bars or more. They produce electricity by turning water into steam through thermal energy using water-filled tubes in a metal tank or enclosure, which is then utilized to power machinery. There is a higher likelihood of leaks occurring in the system if the boiler pressure is too high. The system won't function as well if the boiler pressure is too low, though. For your system to effectively heat your home, it is crucial to maintain the proper boiler pressure.

Learn more about  High pressure here:

https://brainly.com/question/12473337

#SPJ4

What is the stopping potential when metal with work of 0.6 eV is illuminated with the light of 2.6 VB 3.6 VC 0.8 VD 1.4 V?

Answers

Correct option is D, the stopping potential when metal with work of 0.6 eV is illuminated with the light of 2.6 ev is 1.4 V

The minimal negative voltage that must be provided to the anode to halt the photocurrent is known as stopping potential. When expressed in electron volts, the maximal kinetic energy of the electrons is equal to the stopping voltage. The stopping potential (V0) for the specified frequency of incident radiation in an experimental setup for the photoelectric effect is the value of the negative potential of the collector plate or anode at which the photoelectric current will fall to zero.

Given: E = 2 eV and 0 = 0.6 eV

To locate Potential for stopping (Vo) Formula: Vo = (E - Φ₀)/ e

Calculation:

Vo= 2 × 1.6 × 10^-19 – 0.6 × 1.6 × 10^-1 / 1.6 × 10-19

= 2 -0.6

= 1.4 V

1.4 V is the stopping potential.

To learn more about stopping potential from given link

https://brainly.com/question/13839503

#SPJ4

Koby placed ½ teaspoon of baking soda into each of two identical glasses. He noticed the baking soda was lumpy, so he used a fork to break up the lumps. Why is it important to break up the lumps?

Answers

Answer:

because the lumps are just baking soda covered with whatever watery substance you used.

Explanation:

so pretty much inside the lumps is just a bunch of baking soda

Which produces more electricity wind or solar?

Answers

In comparison to solar panels, which are just 18% to 22% efficient, wind turbines typically capture 60% of the energy that travels through them. It follows that it is undisputed that a single house wind turbine can generate more electricity than a number of solar panels.

Tell me about solar energy?

Through photovoltaic (PV) panels or mirrors that concentrate solar radiation, solar technologies turn sunlight into electrical energy. Batteries or thermal storage devices can be used to store this energy or to generate power.

What are the principles behind a solar panel's operation?

On the top of a solar panel, a thin layer of silicon is hit by photons, or light particles, which dislodge electrons from silicon atoms. The wiring in solar panels is able to capture the electric current that this PV charge generates.

To know more about electricity wind or solar visit :-

https://brainly.com/question/889163

#SPJ4

How does sonar detect underwater objects?

Answers

An acoustic signal or sound pulse is sent into the water by active sonar transducers. The sound pulse will bounce off an item if one is in the way of the sound pulse, sending a "echo" back to the sonar transducer.

Does sonar function submerged?

SONAR is most useful underwater, although it also functions in the open air. The reason for this is that sound travels farther in water.

How does underwater sonar work to find submarines?

Sonar devices use sound waves to penetrate the ocean and record the sound waves that are reflected back to display items below the surface. This is known as active sonar, which is a type of echolocation similar to that employed by bats. Similar technology exists in radar, but radio waves are used in it.

To know more about sonar visit :-

https://brainly.com/question/4955683

#SPJ4

What i the velocity of the ice kater after
throwing the nowball? Diregard the friction
between the kate and the ice

Answers

Kinetic Friction, or Sliding Friction, is the friction between skates and ice. When two items slide past each other, this form of friction develops.

Sliding Friction is created when the skate blade passes through the ice. The beautiful curves are governed by the second law. Acceleration is required for a change in velocity, which includes both speed and direction. Because of the constantly changing direction, traveling in a circle at a constant speed includes acceleration. Because everyone is initially at rest, the system's linear momentum is zero. Because there is no external force acting on the system when the guy throws the ball, linear momentum must be conserved.

Learn more about velocity here-

https://brainly.com/question/18084516

#SPJ4

which of the following leaves will be the easiest to make a mat?

Answers

Answer:

c

Explanation:

Which of jupiter's moons experiences the greatest gravitational force of attraction to jupiter?.

Answers

The moon that experiences the greatest gravitational force of attraction from Jupiter is Io, which is the innermost of Jupiter's four largest moons (also known as the Galilean moons).

Io is the most massive of the Galilean moons, and it is also the closest to Jupiter, which means that it experiences the strongest gravitational force of attraction from the planet. In fact, the strong gravitational pull of Jupiter on Io is so great that it causes Io to experience significant tidal forces, which have caused its surface to become heavily fractured and geologically active.

It's worth noting that while Io experiences the strongest gravitational force of attraction from Jupiter, the other Galilean moons (Europa, Ganymede, and Callisto) also experience significant gravitational forces due to their large masses and close proximity to Jupiter.

To know more about Gravity

https://brainly.com/question/14874038

#SPJ4

Answer:the answer is A, lo

Explanation:

Paula is sailing across a lake. As the boat accelerates, she thinks about how
the wind is pushing on the sail. Which statement below best represents
what is happening between the sail and the air?

A. The sail is pushing the wind back and slowing down the air.
B. The sail and air are not pushing each other, they are just moving together.
C. The air is pushing on the sail, but the sail is not pushing the air.
D. The sail is pushing the wind forward with the air.

Which statement do you most agree with? Explain you reasoning.

Answers

A is the correct answer because the boat can’t sailor without a sailor that the boat

The answer is (A.) The sail is pushing the wind back and slowing down the air. The wind is pushing the sail and the sail pushes the wind back and slows the air down.

As the boat is sailing, the wind will be faster than the boat. This fast wind is obstructed by the sail. That is, the fast wind gets slowed down by the sail because the sail pushes the wind backwards which slows down the wind. This will make the wind push the boat forward thereby accelerating the boat.

Learn more about the forces acting on a boat here:

https://brainly.com/question/21186114

A 18.3 kg rock, m, is on the edge of a 105.4 m cliff, h, as shown in the picture. Assume that air resistance is negligible. The rock falls from the cliff. What is its kinetic energy just before it strikes the ground?

Answers

18902.4 J kinetic energy just before it strikes the ground.

What is kinetic energy?

The energy an item has as a result of motion is known as kinetic energy. A force must be applied to an item in order to accelerate it. We must put forth effort in order to apply a force. After the job is finished, energy is transferred to the item, which then moves at a new, constant speed.

Given that,

mass (m) = 18.3 kg

height (h) = 105.4 m

Thus, Potential energy (P.E) = mgh

or, P.E = (18.3) ×(9.8) ×(105.4)

or, P.E = 18902.4 J

Kinetic energy (K.E) = Potential energy (P.E)

or, Kinetic energy (K.E) = 18902.4 J

Thus, 18902.4 J kinetic energy needed just before it strikes the ground.

To know more about kinetic energy refer to:

https://brainly.com/question/8101588

#SPJ1

if equal numbers of suspension clamps are on each side of the support, can their weights be omitted from the calculations? explain

Answers

Yes, the weight of the suspension clamps is omitted from the calculation as long as each side of the support is the same.

Suspension clamps are mainly used for overhead power lines or substations. It can hang wire, lightning protection wire on insulator string, or lightning protection cable on the tower by connecting fittings. Suspension clamps are mainly made of malleable iron and aluminum alloy.

Given the same number of clamps on both sides of the support, when we calculate the torque, the weight of the clamps will disappear from each side.

Like there are 2 clamps on each side so the torque due to the clamps are going to be

                  τ = r x F = 2 * W * d - 2 * W * d          

So that the weight of the clamps can be omitted as in the final calculation of the torque as each clamp will cancel out. Provided that the position of the clamps on both sides of the support is the same (i.e., distance d from the support)

Learn more about the suspension clamps at https://brainly.com/question/17156840

#SPJ4

1a. state the condition for the equilibrum of a rigid body acted upon by parallel forces
1bi. Describe an experiment using the principles of moments to determine the mass of a meter rule
1bii. State two precautions necessary to ensure accurate results
c. what is a couple in physics​

Answers

The response to the questions are given below:

1a. The condition for the equilibrium of a rigid body acted upon by parallel forces is that the vector sum of all the forces acting on the body must be equal to zero, and the vector sum of all the torques (moments) acting on the body must also be equal to zero.

1bi. An experiment to determine the mass of a meter rule using the principles of moments could involve suspending the meter rule from a pivot point using a string or wire, and then applying known weights to the ends of the meter rule.

1bii. Two precautions that should be taken to ensure accurate results in this experiment would be to ensure that the pivot point is perfectly level and that the weights applied to the ends of the meter rule are applied at exactly the same distance from the pivot point.

C. A couple in physics is a pair of forces that act on a body in such a way that they produce a turning effect, or torque, about a fixed point. A couple consists of two equal and opposite forces that are applied to the body at different points.

What is equilibrium of a rigid body?

When a rigid body's linear momentum or rotational momentum are not changing at any given time, it is said to be in mechanical equilibrium. The body is in a state of mechanical equilibrium when there is no linear or angular acceleration.

When a rigid body's linear and angular acceleration are both zero with respect to an inertial frame of reference, we say that it is in equilibrium. A body in equilibrium can therefore move, but in that case, its linear and angular velocities must remain constant.

Therefore, In essence, there should not be any acceleration for an object to be in equilibrium (linear or angular). Therefore, the item must have zero net force and zero net torque.

Learn more about equilibrium  from

https://brainly.com/question/517289

#SPJ1

what is the velocity of a car that went a distance of 400ft in 25 seconds ​

Answers

Speed = (distance covered) / (time to cover the distance)

Speed = (400 ft) / (25 seconds)

Speed = 16 ft/sec

That's the car's speed.

We don't have enough information to state its velocity.

Explain why running up a flight of stairs is so much different than walking if both require the same amount of work?

Answers

Answer:

Running up a flight of stairs is different than walking because it requires a different type of muscle activity. When walking, the muscles in your legs move in a more controlled and rhythmic manner, allowing you to maintain a steady pace and avoid stumbling. In contrast, running up stairs requires your muscles to work in a more explosive and powerful manner, generating bursts of force to push you upward and forward. This type of muscle activity is much more intense and demanding, and it requires more energy and effort than walking.

Additionally, running up stairs also requires you to overcome the force of gravity to a greater extent than walking. When you walk up stairs, you are able to use the stairs to support your weight and to assist you in moving upward. When running, however, you are moving too quickly to use the stairs in this way, and you must rely on your own muscle power to lift your body upward. This additional force of gravity makes running up stairs more challenging and demanding than walking.

What is the formula of this energy frequency relations?

Answers

E = hv is the energy equation. In the formula, E stands for energy, h for Planck's constant (6.626 x 10 -34 J s), and v for frequency. Since frequency rises as energy falls, frequency and energy are related directly in the energy equation.

The frequency of the radiation directly affects how much energy each quantum contains. The amount of energy carried is inversely proportional to wavelength since frequency and wavelength have an inverse relationship.

The equation E=hv, where h is Planck's constant, describes the relationship between a photon's energy E and frequency v.

In essence, energy is inversely proportional to wavelength but directly proportional to radiation frequency. Accordingly, energy rises with a rise in frequency or a fall in wavelength, and falls with a fall in frequency or a rise in wavelength.

To learn more about energy frequency relation from given link

https://brainly.com/question/13396102

#SPJ4

Help me out please thank you

Answers

Answer:

Similarly, the law of conservation of energy states that the amount of energy is neither created nor destroyed. For example, when you roll a toy car down a ramp and it hits a wall, the energy is transferred from kinetic energy to potential energy.

Explanation: To be more clear, your answer would be A

If a species experiences a helpful mutation, like camouflage, explain how that mutation would help the species to better I survive and flourish. Again, be sure to explain how and why that mutation would be helpful.



HELP I NEED IT FAST PLEASE ILL MARK B!!!! IF CORRECT

Answers

A given environment are called adaptations. Adaptations are traits that an organism inherits from its parents. Within organisms are genes coding for a certain number of traits. Example: a human population may have genes for eyes that are green, brown, hazel or colour, but as far as we know, not purple or lime green or any other.

PLEASE I NEED HELP from an actual person who isn't going to give me links to hack me :(


Differentiate the between, Heat, Thermal Energy, and Temperature.

Answers

Thermal energy refers to the energy contained within a system that is responsible for its temperature. Heat deals with the flow of thermal energy. Temperature is the physical manifestation of thermal energy, and deals with whether it feels cold or hot. 

In which stage of the star, does nuclear fusion reaction begin?

Answers

Nuclear fusion reactions begin in the main sequence stage of a star's life.

During the main sequence stage, a star is in hydrostatic equilibrium, meaning that the outward pressure of the hot, dense gas at its core is balanced by the inward gravitational force. This balance allows the star to maintain a stable size and luminosity.

At the core of a main sequence star, the temperature and pressure are high enough to initiate nuclear fusion reactions, in which hydrogen nuclei combine to form heavier helium nuclei. These reactions release a large amount of energy in the form of light and heat, which helps to maintain the high temperature and pressure at the core and keep the star in hydrostatic equilibrium.

Learn more about Nuclear Fusion here:

https://brainly.com/question/17870368

#SPJ4

Discuss the importance of understanding both mechanical and electromagnetic waves by giving examples, such as designing comfortable and safe structures and technologies.

Answers

This procedure enables life as we know it. And electromagnetic waves influence modern life in countless smaller-scale (but more immediate) ways. For example, electromagnetic waves are responsible for your cell phone, Wi-Fi connection, microwave, and medical imaging methods like x-ray and MRI.

What understanding mechanical and electromagnetic wave?

Energy is moved around the planet in two main ways: mechanical waves and electromagnetic waves. Mechanical waves include air and water waves caused by sound.

Therefore, Ocean waves are crucial for climate modelling, weather forecasting, coastal towns, shipping lanes, and offshore business.

Learn more about waves here:

https://brainly.com/question/3101711

#SPJ1

while exploring an ancient mayan tomb, you discover that the walls begin to move and are closing in on you. by exerting 400 n of force, you are able to keep a wall from coming closer. the work you are doing on the wall is

Answers

Because the wall is not moving, the work you are performing on it is coming closer by exerting 400 n of force.

What work has been done to the wall?

Despite the man's forceful efforts, the wall does not budge. Work completed equals force applied times displacement, and since the wall's displacement is 0, work completed is also zero.

Is work completed when a wall is pushed?

When an object experiences force and is moved from its starting location, this is referred to as doing work. The Joule is the SI unit of work. A joule is defined as a newton of force applied to an object that results in a displacement of one meter. This signifies that when force is exerted to a wall, nothing is accomplished.

To know more about Work done visit:-

https://brainly.com/question/13662169

#SPJ4

Predict what happens to the mechanical advantage of a machine if friction is reduced through the use of oil or some other means.

Answers

A big machine is composed of several moving and stationary parts. Some of these parts are in a state of constant motion hence they periodically rub against each other.

Explain about mechanical advantage:The Mechanical Advantage (MA) of a machine is the ratio between the output force produced by the machine divided by the input force exerted on it:The MA is generally a number larger than 1, since machines are used to "multiply" the force applied.There are actually 2 values of the mechanical advantage for a machine:The Ideal Mechanical Advantage (IMA), which is the MA when there are no frictional force acting on the machine, and so when all the work done in input is transferred as energy in output The Actual Mechanical Advantage (AMA), which is the MA when taking into account the frictional forces, which cause a dissipation of part of the energy; so, not all the work done in input is transferred as energy in outputThe efficiency of a machine is defined as the ratio between the two:A machine cannot have an efficiency of 100% because there are always some frictional/resistive forces acting on the system, so part of the energy in input is always dissipated, and therefore AMA < IMA, and so the efficiency is not 100%.As we know that friction force is the resistive force due to relative motion of two surface. When one surface is moving relative to other surface then the motion is resisted by the interaction force between two surface which is known as friction force.

To learn more about mechanical advantage refer to:

https://brainly.com/question/25984831

#SPJ1

Which of the following is the minimum amount of work done by a hydraulic lift to raise a 150-kg aluminum block 2.0 m vertically?
a. 300 J
b. 2940 J
c. 1470 J
d. 75 J

Answers

d. 75 J. Have a nice day.

Important Formulas:

[tex]w=Fd[/tex]

[tex]F=ma[/tex]

work(measured in joules) = force(measured in newtons) * distance(measured in meters)

force(measured in newtons) = mass(measured in kg) * acceleration(measured in m/s^2)

__________________________________________________________

Given:

[tex]m=150kg[/tex]

[tex]d=2m[/tex]

[tex]a=9.8m/s^2[/tex] (acceleration due to gravity)

[tex]w=?[/tex]

__________________________________________________________

Finding force:

[tex]F=ma[/tex]

[tex]F=150\times9.8[/tex]

[tex]F=1470N[/tex]

__________________________________________________________

Finding work:

[tex]w=Fd[/tex]

[tex]w=1470\times2[/tex]

[tex]w=2940J[/tex]

__________________________________________________________

[tex]\fbox{Option B}[/tex]

I need help getting the answer for this!

Answers

The shuttlecock began 7 meters above the ground, and fell through a vacuum. The equation a = v/t shows acceleration (a), which is the change in velocity (v) over the change in time (t).

What is the formula for a graph of velocity and time?

time chart A velocity vs. time graph can be used to determine position and to calculate velocity. We are aware that v = d/t. Rearranging the equation with a little mathematics reveals that d = v t.

What is the acceleration time graph's formula?

△a = △v/△t, For an item travelling at a constant rate of acceleration, the rate of acceleration remains constant over all time intervals. As a result, the acceleration-time graph has a slope of zero and is parallel to the time axis.

Learn more about velocity here;

https://brainly.com/question/18084516

#SPJ1

Messi shoots a shot on goal with a speed of 200m/s.

A. What is its kinetic energy if the ball has a mass of 0.7kg?

B. How does its kinetic energy change if the speed is 180m/s

Answers

The kinetic energy of the ball when it has a mass of 0.7 kg is 14000J.

When the speed is 180 m/s its K.E. changes to 11340 J.

Calculate the kinetic energy of the following options?

A. Kinetic energy E = 1/2 [tex]mv^{2}[/tex]

mass (m) = 0.7 kg

speed (v) = 200 m/s

K.E = 1/2 (0.7) (200)^2

K.E = 1/2 (28000)

K.E = 14,000J

K.E = 14 x 10^3 J

The kinetic energy of the ball has a mass of 0.7 kg is 14 x [tex]10^{3}[/tex] J

B. The kinetic energy is directly proportional to the square of the speed or velocity. When the speed increases its kinetic energy also increases. When the speed decreases also its kinetic energy is decreases.

K.E. = 1/2 [tex]mv^{2}[/tex]

K.E. = 1/2 (0.7) (180)^2

K.E. = 11,340 J

So, the speed of the kinetic energy is decreased, the value of K.E. is also decreased.

To learn more about kinetic energy refer to:

https://brainly.com/question/25959744

#SPJ1

Atoms that have a positive charge will be attracted to atoms with a
charge. *
O Positive
O Negative
O Neutral

Answers

Answer:

negative

Explanation:

positive charges attract negative charges and vice versa. and are possible to nullify

6. A tuning fork, frequency 384 Hz, produces resonance with a closed tube 20.0 cm long. What is the speed of sound?


7. What is the frequency of a tuning fork that resonates with an open tube 25.0 cm long. Speed of sound that day is 343 m/s


Please show the work

Answers

Answer:

6. Speed = 76.8 m/s

7. Frequency = 1372 Hz

Explanation:

Given the following data;

6. Frequency = 384 Hz

Wavelength = 20 cm to meters = 20/100 = 0.2 m

To find the speed of sound;

Speed = wavelength * frequency

Speed = 0.2 * 384

Speed = 76.8 m/s

7. Wavelength = 25 cm to meters = 25/100 = 0.25 m

Speed = 343 m/s

To find the frequency of the turning fork;

Frequency = speed/wavelength

Frequency = 343/0.25

Frequency = 1372 Hz

A ball on a string is swung in a horizontal circle at a constant speed of 4.3m/s. The centripetal acceleration of the ball is 24.7 m/s^2. The mass of the ball is 3.2kg.

What is the length of the string?

Please show all work thank you so much!

Answers

The length of the string is 75 cm.

What is centripetal acceleration?

Centripetal acceleration is a characteristic of an object's motion along a circular path. Centripetal acceleration applies to any item travelling in a circle with an acceleration vector pointing in the direction of the circle's center.

Given that:  The centripetal acceleration of the ball is: a = 24.7 m/s^2.

constant speed of the ball is: v = 4.3m/s.

Let  the length of the string is l.

We know that:   The centripetal acceleration: a = v^2/l

l = v^2/a

= (4.3)^2/24.7

= 0.75 m.

Hence,  the length of the string is 0.75 m or 75 cm.

Learn centripetal acceleration here:

https://brainly.com/question/14465119

#SPJ1

Objects which stay at one place under water, neither sinking or floating, are said to have what kind of buoyancy? Neutral, negative, or positive

Answers

Answer:

Neutral

Explanation:

The buoyant force balances the force of gravity when the average density of an object is equal to the density of the fluid in which it is immersed, resulting in the object sinking (if its density is greater than the density of the fluid) or rising (if it is less). Neutral buoyancy occurs when the average density of an object equals the density of the fluid in which it is immersed. There is no sinking or rising for an object with neutral buoyancy.

Other Questions
WHAT X !!!!! PLEASE HELP !!! Please help and thank you A friend and I disagree about the answer to the simple math question posed by this post on social media, can you give me the correct answer. I think it's 35, she says 70. streptococcus diacetilactis hipotesis A pet store has 96 pets ( dogs, cats, birds) for sale. There are 3 more dog than cats. There are 9 less birds than cats. How many of each type of pet are in the shop? if he had not been killed in a duel , do you think hamilton would have become president? why or why not -6(-3x-3)=6(1+3x) solve How many atoms are in 9.44 moles of Al? how to find the hypotenuse Please help I need it soon Please help! Math question What is the value of Xpls dont sent false links Complete the sentence.9 is 36% of A nurse administers 25 milligrams of a drug to a patient. The amount of the drug, A, in milligrams, left in the patient after thours can be modeled by the function A(t) = 25e 0.354How many hours will it take for the amount of the drug left in the patient to drop to 0.25 milligrams? Round your answer to the nearest tenth of an hour.hoursPls helppp How did the wife of Chief John Ross die? A toy manufacturer wants to know how many new toys children buy each year. A sample of 305 children was taken to study their purchasing habits. Construct the 80% confidence interval for the mean number of toys purchased each year if the sample mean was found to be 7.6. Assume that the population standard deviation is 1.5. Round your answers to one decimal place. Factor the expression step by step Someone help me pls Isaac's finish 7 heavy cleans every 5 minutes Ryan finish heavy 8 clean every 4 minutes how many more cleans did Isaac complete than Ryan 7a +42 +8 < -10 + 9a -6 + 4a !!HELP ASAP!! No Links.The domain (input values) of the cosine function is:A. all negative and positive angle measures.B. angle measures less than 2 radians.C. angle measures less than 90.D. angle measures between 0 and radians.* I cant miss anymore please help*