A known reference point in an electrical circuit is called a.

To use Ohm's Law in the form of y=mx+c to calculate the average resistance of an ohmic conductor, you need to understand that Ohm's Law is V=IR, where V is voltage, I is current, and R is resistance.

In this case, y represents voltage (V), m represents resistance (R), x represents current (I), and c is the constant (0 for an ohmic conductor).

Now, you can rewrite Ohm's Law as y=mx+c or V=IR+0. To find the average resistance, you'll need to collect data on voltage (V) and current (I) at various points.

Then, plot these points on a graph with voltage (y-axis) against current (x-axis). The slope (m) of the best-fit line through these points will give you the average resistance (R) of the ohmic conductor.

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The ball will reach a height of 308 ft at approximately 2.7 seconds.

To find when the ball reaches a height of 308 ft, we need to solve the equation h(t) = 308 ft. The equation for the height of the ball as a function of time is given by h(t) = -16t^2 + 80t + 224.

Setting h(t) equal to 308 ft:

-16t^2 + 80t + 224 = 308

Rearranging the equation:

-16t^2 + 80t - 84 = 0

Dividing through by -4 to simplify the equation:

4t^2 - 20t + 21 = 0

We can solve this quadratic equation using factoring or the quadratic formula. Factoring is not possible, so we'll use the quadratic formula:

t = (-b ± √(b^2 - 4ac)) / (2a)

In our case, a = 4, b = -20, and c = 21.

Plugging in the values into the quadratic formula:

t = (-(-20) ± √((-20)^2 - 4(4)(21))) / (2(4))

t = (20 ± √(400 - 336)) / 8

t = (20 ± √64) / 8

t = (20 ± 8) / 8

There are two possible solutions:

t1 = (20 + 8) / 8 = 28 / 8 = 3.5

t2 = (20 - 8) / 8 = 12 / 8 = 1.5

However, we are interested in the time when the ball reaches a height of 308 ft, which is a positive value. Therefore, the ball will reach a height of 308 ft at approximately t ≈ 2.7 seconds.

The ball will reach a height of 308 ft at approximately 2.7 seconds.

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Answer:

5000

Explanation:

m/a

maybe

or maybe not

sorry help

Answer:

A. Their shape

Explanation:

The name clearly shows that the shape of these canals are semi-circular. The semi-circular canals consist of three tubes filled with fluid and located in the inner ear. They help to maintain balance and transmit impulses through the movement of the fluids. The impulses sent through these fluids are sent to the brain for interpretation.

The function of the canals are not indicated by the name, rather the shape is hinted through the name.

Answer:

212 f

Explanation:

The work was done by the force on the block of 2 kg with an acceleration gravity of  9.81 \(m/s^2\) and at an angle of \(29^o\) 42.83 J.

When an object is moved over a distance by an external force, at least some of that force must be applied in the direction of the displacement. This is known as work in physics. Work may be estimated if the force acting along the path is constant by multiplying the length of the path by the component of the force acting along the path.

To express this formally, the work W is equal to the force f times the length d, or W = fd. The work is W = fd cos if the force is applied at an angle to the displacement.

Given:

The mass, m = 2 kg,

The acceleration, g = 9.81 \(m/s^2\),

θ = angle between block and surface kinetic friction = μ

Calculate the work done by the formula given below,

\(W_{fy}\) = F sinθ

\(W_{fy}\) =  (\(mgsin\)θ)/ (sinθ -  μ * cosθ)

Substitute the values

\(W_{fy}\)  = \((2*9.81 sin29^{o} )/sin29^o - 0.30cos29^o\)

\(W_{fy}\)  = 42.83 J

Therefore, the work done by the force on the block of 2 kg with an acceleration gravity of  9.81 \(m/s^2\), and at an angle of \(29^o\) is 42.83 J.

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Answer:

balance, eyes, elbow in, follow-through

Explanation:

Answer:

A.ruler and balance is the answer.

Answer:

A) Ruler and balance

Explanation:

Answer:

Height of the cliff, H = 54.66 m

Explanation:

Given that,

Speed of the car, u = 30 m/s

The car lands 100 m from the base of the cliff.

We need to find the height of the cliff.

First we will find the time time needed for the car to reach the bottom of the cliff. It can be calculated as :

\(t=\dfrac{h}{v}\\\\t=\dfrac{100}{30}\\\\t=3.34\ s\)

Let H is the height of the cliff. Using second equation of motion as follows

\(H=v_yt+\dfrac{1}{2}gt^2\\\\H=\dfrac{1}{2}gt^2\\\\H=\dfrac{1}{2}\times 9.8\times (3.34)^2\\\\H=54.66\ m\)

So, the cliff is 54.66 m tall.

When a nonvolatile solute is added to a volatile solvent, the vapour pressure of the solvent decreases due to the solute-solvent interactions. This phenomenon is governed by Raoult's law, which states that the vapour pressure of a solvent above a solution is directly proportional to the mole fraction of the solvent in the solution.

When a nonvolatile solute is added to a volatile solvent, the solute particles interact with the solvent particles, causing a reduction in the number of solvent particles available to escape into the vapour phase. As a result, the vapour pressure of the solvent decreases compared to its pure form. This decrease in vapour pressure is explained by Raoult's law, which states that the partial vapour pressure of a component in a solution is equal to the product of its mole fraction in the solution and the vapour pressure of the pure component.

Mathematically, Raoult's law can be expressed as:

\(\[ P_{\text{{solvent}}} = x_{\text{{solvent}}} \cdot P_{\text{{solvent}}}^0 \]\)

where \(\( P_{\text{{solvent}}} \)\) is the vapour pressure of the solvent above the solution, \(\( x_{\text{{solvent}}} \)\) is the mole fraction of the solvent in the solution, and \(\( P_{\text{{solvent}}}^0 \)\) is the vapour pressure of the pure solvent.

The presence of the nonvolatile solute reduces the mole fraction of the solvent in the solution, leading to a decrease in the vapour pressure of the solvent. This phenomenon has practical applications in various fields, such as in the determination of the molecular weight of solutes and in controlling the evaporation rates of solvents in industrial processes.

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Answer:

2.5 A

Explanation:

Ohms law is a physical law relating the voltage difference between two points, the electric current flowing between them, and the resistance of the path of the current. Mathematically, the law states that V = IR, where V is the voltage difference, I is the current in amperes, and R is the resistance in ohms. It is can easily be deduced from the foregoing that the voltage is directly proportional to current and the resistance is the constant of proportionality.

From ohm's law;

R= 6Ω

V= 15V

I= ???

V=IR

I= V/R

I= 15 V/6Ω

I= 2.5 A

ANSWER:

7 m/s

STEP-BY-STEP EXPLANATION:

Given:

Initial velocity (u) = 4 m/s

Acceleration (a) = 1.5 m/s^2

Time (t) = 2 s

We can calculate the final velocity using the following formula:

We replace and calculate the value of the final velocity:

The final velocity is equal to 7 m/s.

Answer:

Sagittarius A

At its center, surrounded by 200-400 billion stars and undetectable to the human eye and by direct measurements, lies a supermassive black hole called Sagittarius A*, or Sgr A* for short. The Milky Way has the shape of a spiral and rotates around its center, with long curling arms surrounding a slightly bulging disk.

Explanation:

Answer:

black hole is the answer

Explanation:

The examples of heat transfer by convection are the air being heated in a hot-air balloon, Sea breeze and land, Air conditioner and Hot airflow in summer.

Heat transfer by convection is the heat flow from one place to another due to the movement of fluid.

Examples of heat transfer by convection include the followings;

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Answer: Ohm's law states that the voltage or potential difference between two points is directly proportional to the current or electricity passing through the resistance, and directly proportional to the resistance of the circuit. The formula for Ohm's law is V=IR.

Answer:

22.5 inches in 6hours

Explanation:

Because it tells us it grows 3.75 an hour which is an ratio of 3.75 to 1 so you would just multiply 3.75 with 6

Hope this helps

The potential energy of the child at the highest point of the bounce can be calculated using the formula: potential energy = mass × gravity × height.

Given:

Mass of the child (m) = 33 kg

Gravity (g) = 9.8 m/s²

Height (h) = 1 m

Potential energy = 33 kg × 9.8 m/s² × 1 m = 323.4 Joules

The potential energy represents the energy stored in the trampoline as the child reaches the highest point of the bounce. As the child starts descending, this potential energy will be converted into kinetic energy, resulting in the child bouncing back up. The spring restoring force of the trampoline, with a constant of 5050 N/m, will contribute to the upward acceleration of the child and assist in the subsequent bounce.

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Answer:

Answer:

Vf = Vi + a t       fundamental equation

-60 m/s= Vi - 9.8 m/s^2 * 6 sec      taking upward direction as positive

Vi =58.8 m/s - 60  m/s = -1.2 m/s   so the coin was initially thrown downward

As a check take the downward direction as positive

Vf = 1.2 m/s + 58.8 m/s = 60 m/s  

4.19 inches x is the distance traveled by the tip of the minute hand in minutes.

A 4-inch circle's circumference may be reached in one minute:

Time = 60 minutes Circumference = 2r = 2(2in) = 4 in

2) Constant angular velocity: x = 4/ 3 inches (4/ 60) = (x / 1)

4.19 inches x

Solution: 4.19 inches

4.19 inches x is the distance traveled by the tip of the minute hand in minutes.

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Answer:

more point plzzzzz... eeeeeeeee

A to B in the graph shows the object going at the fastest speed.

In a distance-time graph, the gradient of the line is equal to the speed of the object. The greater the gradient (and the steeper the line) the faster the object is moving.

"The rate of change of position of an object in any direction. Speed is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude."

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A rifle has a mass of 2. 5 kg. if it is loosely gripped and a 1. 5-g bullet is fired from it with a muzzle velocity of 1400 m/s. The recoil velocity of the rifle just after firing is 0.840 m/s.

Rifle

A rifle is a long-barreled gun with a helical pattern of grooves (rifling) etched into the bore wall that is intended for precise shooting. Rifles are often made to be handled with both hands and stabilized on the shooter's shoulder by a buttstock, in line with their emphasis on accuracy. Armed conflict, self-defense, law enforcement, criminal activity (most notably assassinations), hunting, and shooting sports all make substantial use of rifles.

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Given what we know, we can confirm that the spring toy uses the transfer of potential gravitational energy into kinetic energy of motion in order to fall down the stairs.

Therefore, we can confirm that the spring toy uses its position at the top of each stair as a source of potential energy, which using the momentum from the last fall, it transfers into the kinetic energy of motion as it falls, all through the help of gravity.

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From 1859 to 1994, lacrosse was known as the only official national sport of Canada.

Lacrosse, a game with Indigenous origins, was declared the official national sport of Canada in 1859. It held this distinction until 1994. The sport has a rich history in Canada, with Indigenous communities playing it for centuries before European settlers arrived. Lacrosse symbolized a connection to Indigenous culture and traditions.

However, in 1994, the Canadian government recognized ice hockey as the official winter sport and lacrosse as the official summer sport. This change reflected the growing popularity and cultural significance of ice hockey in Canada while still acknowledging the historical importance of lacrosse.

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The statement exists true. Alternating current (AC) frequently changes its direction, while direct current (DC) only moves in one direction and cannot do so.

When compared to direct current (DC), which only travels in one direction and cannot sporadically shift, alternating current (AC) is an electric current that periodically flips direction.

Alternating current (AC) frequently changes its direction, while direct current (DC) only moves in one direction and cannot do so.

An electrical circuit is a non-stop, continuous loop constructed of conductive material that enables electrons to travel through it without starting or stopping.

Direct current is formed when electrons move continuously in one direction. To identify it, use "DC". Due to the fact that direct current can only flow in one direction, its electrical pressure or voltage is always oriented in that direction, or "polarity."

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Answer:

A

Explanation:

The best advice for Maurice is he should recognize that celebrities often present unrealistic body images. The correct option is A.

A suggestion made to you by someone regarding what to do or how to act in a specific circumstance: Steven offered me some wise counsel. I believe I will heed your counsel and purchase the green dress. Can I offer you some advice? I require assistance choosing a PC.

Body Dysmorphic Disorder is a condition where “imagined ugliness” is present. People who have this disease perceive a wildly distorted version of themselves when they look in the mirror.

These people frequently spend hours scrutinizing, trying to hide, or worrying about their perceived shortcomings.

Therefore, the correct option is A. He should recognize that celebrities often present unrealistic body images.

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The data provided includes position (x) and time (t) measurements for an object that starts at rest and moves with constant acceleration. By analyzing the data, we can determine the position of the object at a specific time (t).

The given data consists of position (x) and time (t) values at four different instances: (0, 0), (1, 5), (2, 14), and (3, 29). From this data, we can observe that the object's position increases with time, indicating that it is moving with a positive acceleration.

To find the position of the object at a specific time (t), we need to determine the equation that describes its motion. Since the object is moving with constant acceleration, we can use the equation for position as a function of time: x = ut + (1/2)at^2, where u is the initial velocity and a is the acceleration.

However, since the initial velocity is not given explicitly in the data, we can deduce that the object starts at rest (u = 0). Therefore, the equation simplifies to x = (1/2)at^2.

By analyzing the data points and applying the equation, we can calculate the acceleration (a). Substituting the known values of position and time into the equation, we can solve for a. Once we determine the acceleration, we can use it to find the position of the object at any given time (t) using the equation x = (1/2)at^2.

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