a parallel-plate capacitor is charged by a battery and then disconnected. what will happen to the charge on the capacitor and voltage across it if the separation between the plates is decreased and the area is increased?

The correct option is C: As the lightbulbs are added in parallel, the power delivered by the battery remains the same.

When lightbulbs are connected in parallel, each bulb receives the same voltage from the battery. This means that the voltage across each bulb remains constant. Since power is calculated as the product of voltage and current, and the voltage remains constant, the power delivered by the battery also remains the same.

In a parallel circuit, the total current supplied by the battery is divided among the individual branches, with each branch having its own current. When the first lightbulb is connected, it draws a certain amount of current and produces a certain amount of brightness.

Adding more lightbulbs in parallel provides additional pathways for the current to flow, but the total current supplied by the battery increases to accommodate the additional bulbs.

While the current and brightness of each individual bulb may decrease slightly as more bulbs are added due to the increased overall resistance in the circuit, the power delivered by the battery remains constant. This is because the decrease in current is offset by the increase in the number of bulbs connected, resulting in the same total power output.

Learn more about power

brainly.com/question/29575208

#SPJ11

The correct answer is option D: index finger and thumb are flattened against the handle

All of the following are true of neutral hand position except the index finger and thumb are flattened against the handle.

When the wrist is straight or lightly bent then it is said to be in a neutral position.

Our neutral hand position refers to the palm of the hand being held in an open and relaxed position.

Similarly, the hand will be in a neutral position if the fingers apply light pressure against the instrument handle.

Another example is if we hold a glass full of water, then we will see that our thumb and forearm are aligned with respect to each other.

In the above-mentioned case, the hand will be in a neutral position.

If you need to learn more about rule of thumb click here:

https://brainly.com/question/943703

#SPJ4

A ball sitting still on the pitch obeys Newton's first law.

According to the first law of the Newton, a body would continue to be at rest or in state of uniform motion unless it is acted upon by an external force.

In this case, we have a football that is sitting still on a pitch. This ball is held by the force of inertia and the forces that act on it are balanced. If on the other hand this ball is not kicked (action of eternal force), it would continue to sit still on the pitch.

Learn more about Newton's law:https://brainly.com/question/27573481

#SPJ1

Answer:

The spark from the primer ignites the gunpowder. Gas converted from the burning powder rapidly expands in the cartridge. The expanding gas forces the bullet out of the cartridge and down the barrel with great speed. The rifling in the barrel causes the bullet to spin as it travels out of the barrel.

Explanation:

Answer:

The resistance of the 60 Watt light bulb is 240 ohms.

Explanation:

To calculate the resistance of the light bulb, we can use Ohm's Law, which states that resistance (R) is equal to voltage (V) divided by current (I). In this case, we are given the voltage (V = 120 V) and the current (I = 500 mA = 0.5 A). However, we first need to convert the power (60 Watts) into current using the equation P = IV.

P = IV

60 W = (0.5 A) * V

Now, we can rearrange the equation to solve for voltage:

V = (60 W) / (0.5 A)

V = 120 V

Now, we have the voltage (V = 120 V) and the current (I = 0.5 A). We can substitute these values into Ohm's Law to calculate the resistance:

R = V / I

R = 120 V / 0.5 A

R = 240 Ω

The calculation shows that there is a 0.2125 second lag between the sound of the drumstick striking the drum and indeed the audio heard by someone 1.6 kilometres distant.

Distance is the length of an object's real route in its entirety. The displacement of an item between two points is defined as the straight path (shortest) travel between all those two places when directed by one position to another. The metre is the SI unit for measuring distance and displacement (m).

Distance = 1.6 km = 1600 m

Speed of sound in air = 340 m/s

As we know, the expression for distance as,

Distance = Speed / Time

To find out the time delay, let us make time as subject.

Time = Speed / Distance = 340/ 1600 = 0.2125 sec

As a result, there is a 0.2125-second delay between the sound of the drumstick striking the wheel and indeed the music heard by someone 1.6 kilometres away.

To know more about Distance visit:

https://brainly.com/question/26550516

#SPJ4

When two mirrors are placed facing each other, it creates a phenomenon known as "mirror reflection" or "infinite reflection." This occurs as the light reflects back and forth between the mirrors, creating multiple reflections that appear to stretch infinitely into the distance.

The reflection continues on and on until it becomes too small to see. In this way, a person sees many reflections of themselves, and each reflection is smaller than the previous one. This is called an infinity mirror or a mirror tunnel.An infinity mirror is a visual illusion that looks like the mirror has no end. It is accomplished by placing a mirror in front of another and allowing a small amount of space between the two. Then, light is reflected back and forth in the space between the mirrors, generating an infinite loop of images.

To learn more about reflection  visit: https://brainly.com/question/29788343

#SPJ11

The probability that the sale price for a randomly selected car is greater than $25,000 is p(x>25) = 0.0228

B. To find the probability that the sale price for a randomly selected car is greater than $25,000, we need to use the cumulative distribution function (CDF) of the normal distribution.

The CDF of the normal distribution is given by P(X≤x)=F(x)=1/2*[1+erf((x-μ)/(σ*√(2)))]

Where x is the sale price, μ is the mean of the distribution, σ is the standard deviation of the distribution and erf is the error function.

Since we are looking for the probability that x>25, we need to subtract the probability that x≤25 from 1.

By plugging in the given values we can find out the probability, p(x>25) = 1 - P(X≤25) = 1 - F(25) = 0.0228 (approx)

For more questions like Probability click the link below:

https://brainly.com/question/30034780

#SPJ4

Thomas Young was a British scientist who described the phenomenon of thin film colors due to light scattered from a thin layer of a material, such as a soap bubble or a layer of oil on water.

This phenomenon is known as interference, where the light waves reflecting from the front and back surfaces of the thin film interfere with each other, resulting in certain wavelengths of light being reinforced and others being canceled out. This leads to the appearance of different colors depending on the thickness of the film and the angle of the incident light. Thomas Young's work on thin film interference laid the foundation for the study of optics and has important applications in industries such as electronics and coatings.

Young's explanation of thin film colors was based on the wave nature of light. He proposed that when light waves are reflected from a thin film, they interfere with each other and produce a pattern of constructive and destructive interference. The resulting pattern determines the color that is observed.

To learn more about interference, visit:

https://brainly.com/question/31857527

#SPJ11

Answer:

Centrifugal force = 1230.77 Newton.

Explanation:

The force associated with the car is generally referred to as centrifugal force and it can be calculated using the formula;

Centrifugal force = mv²/r

Given the following data;

Mass = 800kg

Radius = 65m

Velocity = 10m/s

To find the force;

Centrifugal force = (800*10²)/65

Centrifugal force = (800*100)/65

Centrifugal force = 80000/65

Centrifugal force = 1230.77 Newton.

Answer:

ya bestie Anda benar terima kasih nanti sekarang selamat tinggal

Answer:a usually reversible change in the physical properties of a substance, as size or shape:

Freezing a liquid is a physical change.

Explanation:

Answer:

Explanation:

A simple pendulum consists of a mass (usually represented as a small object or bob) attached to a string or rod of negligible mass. The mass is free to swing back and forth under the influence of gravity.

In the figure, the point of suspension is denoted by "O," and the mass (bob) is represented by the small circle. The string or rod is represented by the vertical line connecting the point of suspension to the bob.

Amplitude:

The amplitude of a pendulum refers to the maximum displacement or swing of the bob from its equilibrium position. In the figure, the amplitude can be represented by the angle formed between the vertical position and the position of the bob when it swings to its maximum distance on one side. It is usually denoted by the symbol "A."

Effective Length:

The effective length of a pendulum refers to the distance from the point of suspension to the center of mass of the bob. It represents the distance over which the mass swings back and forth. In the figure, the effective length can be measured as the length of the string or rod from the point of suspension to the center of the bob. It is usually denoted by the symbol "L."

It is important to note that the amplitude and effective length of a simple pendulum affect its period of oscillation (the time taken for one complete swing). The relationship between these parameters and the period can be described by mathematical formulas.

Overall, the simple pendulum is a fundamental concept in physics and provides a simplified model for understanding oscillatory motion and the principles of periodic motion.

Answer: The live wire is the most dangerous one, since it is at 230 V. it should never touch the earth wire (unless the insulation is between them, of course!), because this would make a complete circuit from your mains supply to the ground (earth). A shock or fire would be highly likely.

Explanation:

Option C, The amount of power produced by the automobile and the horse cannot be established purely based on the facts supplied.

Power may be estimated by dividing the amount of work or energy by the amount of time it takes to perform the work or transfer the energy. Power is defined as the pace at which work is completed or energy is transmitted.

Only the time required for each trip is provided in the issue; no information on the distance traveled, the amount of work completed, or the amount of energy used during each journey is provided. As a result, it is impossible to say whether one generates more power than the other or if their output is equal.

Learn more about power at

https://brainly.com/question/29104946

#SPJ4

The question is -

Imani drives her car from point A to point B, the trip takes 1 hour; then rides her horse from point B back to point A, this trip takes 2 hours. Does the car or the horse produce more power?

A. the car

B. the horse

C. No power is involved.

D. Both produce the same amount of power.

The amount of horizontal net force needed to stop the car at a distance of 50.0 m is equal to F = 3555 N.

When a thing with mass is pushed or pulled, it changes its velocity, according to the definition of force in physics. An external force is an agent that has the power to alter the resting or moving condition of a body. It has a direction and a magnitude. The newton, abbreviated N, seems to be the Standard unit of force.

Newton's second principle of motion provides the definition of the force formula: An object's force corresponds to its mass x its acceleration. F = m ⨉ a.

u = 15 m/s

v= 0

s = 50m

v2 = u2 +2as

= 15*15 + 2*50*a

225 + 100a

a = 2.25m/s2

F = ma

F= 1580 * 2.25

F = 3555 N.

To know more about force visit:

https://brainly.com/question/13191643

#SPJ4

Answer:

180.7km/hr²

Explanation:

Given parameters:

Initial velocity  = 10miles/hr

Final velocity  = 25miles/hr

Time taken = 5minutes

     To hr

               60min  = 1hr

               5min gives 0.083hr

Unknown:

Acceleration  = ?

Solution:

To solve this problem,

   Acceleration  = \(\frac{v - u}{t}\)  

v is the final velocity

u is the initial velocity

  Acceleration  = \(\frac{25 - 10}{0.083}\)   = 180.7km/hr²

ANSWER

EXPLANATION

Parameters given:

Initial velocity, v0 = 78.4

Angle of projectile, θ = 52 degrees

(a) To find the flight time of the tennis ball, apply the formula:

where g = acceleration due to gravity

Hence, the total flight time of the tennis ball is:

(b) To find the maximum altitude of the ball during its flight, apply the formula:

Therefore, the maximum height attained by the tennis ball is:

(c) To find the horizontal distance the tennis ball travels, apply the formula:

Hence, the horizontal distance traveled by the tennis ball is:

(d) To find the final velocity of the tennis ball, apply the formula:

where h = initial height = 0 m

Hence, the final velocity of the tennis ball just before impact is:

Detection methods to measure the gravitational tug of a planet on its star that is allowing us to estimate planetary mass is : (c) the astrometric and doppler methods.

Method for finding extrasolar planets and brown dwarfs from radial-velocity measurements through observation of doppler shifts in the spectrum of the planet's parent star is called doppler spectroscopy.

It is also known as the radial-velocity method or the wobble method.

Method that detects the motion of a star by making precise measurements of its position on the sky is called astrometry. This technique can be used to identify the planets around a star by measuring small changes in the position of the stars.

To know more about astrometric and doppler methods, refer

https://brainly.com/question/14191724

#SPJ4

Answer:

The answer is "In any element ,all the atoms are the same".

The given statement is true because the light from two different flaslihgts do not produce interference pattern because it's incoherent.

The base of table is "1.08856 m" far away from the ball land.

Given:

Distance travelled by ball,

Initial velocity,

Acceleration,

Constant speed,

As we know the formula,

→ \(S = ut+\frac{1}{2}at^2\)

By substituting the values, we get

→ \(1.2=\frac{1}{2}\times 9.8t^2\)

→ \(1.2 = 4.9 t^2\)

→    \(t = \sqrt{\frac{1.2}{4.9} }\)

→      \(= 0.4948 \ seconds\)

Let,

→ \(x = 2.2\times t\)

     \(= 2.2\times 0.4948\)

     \(= 1.08856 \ m\)

Thus the solution above is right.

Learn more:

https://brainly.com/question/19170664

Answer:

375 km

Explanation:

Using the equation, d = vt, we simply plug in the numbers:

v = 150 km/hr

t = 2.5 h

d = (150 km/hr)*(2.5 h)

d = 375 km

Answer:

ooooookkkkkk????

Explanation:

The transformer secondary turns should be 83 turns.

We need to know about the transformer to solve this problem. Transformer is a device that can increase or reduce the voltage. The changed voltage depends on the current and number of coil turns. It can be written as

Vi / Vs = Ni / Ns = Is / Ii

where Vi is input voltage, Vs is output voltage, Ni is primary turn, Ns is secondary turn, Is i output current and Ii is input current.

From the question above, we know that

Vi = 120 V

Ni = 1000 turns

Vs = 10V

By substituting the following parameters, we can calculate the secondary turns

Vi / Vs = Ni / Ns

120 / 10 = 1000 / Ns

Ns = 1000 / 12

Ns = 83 turns

Hence, the transformer secondary turns should be 83 turns.

Find more on transformer at: https://brainly.com/question/25886292

#SPJ4

From the calculations that we have performed here;

1) It travelled  3.81 x 10⁻⁶ meters

2) The voltage is  22.9 volts

The force experienced by the electron is given by F = qE, where q is the charge of the electron (1.6 x 10⁻¹⁹ C)

F=  (1.6 x 10⁻¹⁹ C)(6.0 x 10³ N/C)

= 9.6 x 10⁻¹⁶ N

But we can get the acceleration as follows;

a = F / m = (9.6 x 10⁻¹⁶ N) / (9.11 x 10⁻³¹ kg)

= 1.05 x 10¹⁵ m/s²

We can substitute the values into the distance equation:

d = (v² - v₀²) / (2a)

= (2.0 x 10⁴ m/s)² / (2 * 1.05 x 10¹⁵ m/s²)

= 3.81 x 10⁻⁶ meters

Then We have that;

V = Ed = (6.0 x 10³ N/C)(3.81 x 10⁻⁶ m)

= 22.9 volts

Learn more about electric field:https://brainly.com/question/11482745

#SPJ4

The bright, sphere-shaped region of stars that occupies the central few thousand light-years of the Milky Way Galaxy is called B) the galaxy's bulge.

The Milky Way Galaxy is composed of a central bulge, which is a bright, sphere-shaped region of stars that occupies the central few thousand light-years of the galaxy. The bulge is composed of several hundred billion stars and is the most densely populated region of the Milky Way. It is made up of an old population of stars, each of which is orbiting the galaxy's center in a highly eccentric orbit. The bulge is surrounded by the galaxy's disk, which is made up of a younger population of stars and contains the spiral arms of the Milky Way. The halo is a large, diffuse region that surrounds the bulge and disk, and contains the oldest stars in the galaxy. Globular clusters are collections of hundreds of thousands of stars that orbit the Milky Way and are found in both the bulge and halo regions.

learn more about Galaxy Refer: https://brainly.com/question/14766416

#SPJ11

Answer:

19

Explanation:

To find the atomic mass, you have to add together the number of neutrons and protons. It gives you the number of neutrons and the number of electrons is the same amount as the protons

Answer:

I would say the smaller object.

Explanation:

In any case, thermal energy can be spread throughout the object easier, and quicker, rather than the bigger object.

For example: You are boiling two pots of water, let's suppose Pot A has twice as much as Pot B:

|--------------------- |              |                            |

|                          |              |----------------------- |

|_____________|              |______________|

Pot A                                 Pot B

If you boil them at both the same time, temperature, and continue that for sometime, your results will be that Pot B will have risen in temperature alot faster than Pot A

The comparison:

Pot A and Pot B's Amount of water - Supposed to be the different size of the objects

Stove/Boiling: Would be if thermal heat were to enter the objects at the same temperatures.

Explanation:

In a parallel circuit, each lamp is connected to the power source independently, meaning that the lamps are not directly connected to each other. Therefore, if one lamp filament breaks in this setup, the other three lamps will continue to work unaffected.

When the filament of one lamp breaks, it essentially opens the circuit for that particular lamp. However, the remaining lamps are still connected in parallel, so the current can flow through them independently. The other lamps will continue to receive electricity from the power source and light up normally.

This behavior is a characteristic of parallel circuits, where each component has its own individual connection to the power source. If the lamps were connected in series, the situation would be different. In a series circuit, a break in one lamp's filament would interrupt the flow of current throughout the entire circuit, and all the lamps would go out.