your electric utility company sends you a monthly bill informing you of the number of kilowatt- hours you have used that month. a. is the utility charging you for energy or power? explain.

Answer:

Anxiety. Depression. Hypoxia, or lack of oxygen supply. Hyperalgesia, or sensitivity to pain.

The volume and molarity of the KHP solution, and the volume of NaOH solution used to titrate it, we can determine the molarity of NaOH solution as follow:

What is a titration?

Titration is a procedure for determining the concentration of a substance (the analyte) in a solution by adding a carefully measured volume of a reagent of known concentration (the titrant) until the reaction of the analyte with the titrant is complete. The point at which the reaction is complete is known as the equivalence point.

Let's solve the problem provided: The molarity of KHP solution,

M₁ = 0.256 mol/LVolume of KHP solution,

V₁ = 15.00 ml = 0.01500 L

Volume of NaOH solution, V₂ = 20.75 ml = 0.02075 L

From the chemical equation:

KHC₈H₄O₄ + NaOH → NaKC₈H₄O₄ + H₂O

Molar ratio between KHP and NaOH is 1:1

Moles of KHP in 15.00 ml of solution:

moles KHP = Molarity * Volume

= 0.256 mol/L * 0.01500 L = 0.00384 mol

Moles of NaOH used to react with 0.00384 mol of KHP:

moles NaOH = moles KHP = 0.00384 mol

Molarity of NaOH solution:

M₂Molarity = Moles of solute / Volume of solutionM₂

= moles NaOH / Volume of NaOH

= 0.00384 mol / 0.02075 L

= 0.1846 mol/L

Therefore, the molarity of the unknown NaOH solution is 0.1846 M.

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Answer: I think it would be lava, water and air

Explanation: I’m not so sure

Answer:

fire , water , land

Explanation:

i'm guessing i don't know what kind of forces we're talking about here :)

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Answer:

9kgm per second

Explanation:

Answer: 9 kg*m/s

Explanation:

Momentum = mass*velocity

Momentum = 18kg*0.5 m/s

Momentum = 9 kg*m/s

The momentum of the bowling ball at the point where it reaches a speed of 3.6 m/s is 22.3 Kg.m/s (Option C)

Momentum is defined as the product of mass and velocity. It is represented mathematically as:

Momentum = mass × velocity

Now, we can obtain the momentum of the bowling ball at the point where it reaches a speed of 3.6 m/s. Details below:

Momentum = mass × velocity

Momentum =  6.2 × 3.6

Momentum = 22.3 Kg.m/s

Thus, the momentum at the point is 22.3 Kg.m/s (Option C)

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The speed of the train on the open track is 58.3 m/s.

The distance between stations A and B is 21,000 m. We can determine the speed of the train on the open track by finding the slope of the distance-time graph.

For a straight-line distance-time graph, the slope is equal to speed. Slope is given by:

Slope = (change in y) / (change in x)

Here, the change in distance is 21,000 m and the change in time is 6 minutes (360 seconds).

Therefore, Slope = (21000 m - 0 m) / (360 s - 0 s) = 21000/360 = 58.3 m/s

Therefore, the speed of the train on the open track is 58.3 m/s.

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When is the average velocity of an object equal to the instantaneous velocity is C. This is the case only when the velocity is constant.

The instantaneous velocity of an object is equal to the average velocity of an object when the velocity is constant or when the acceleration is zero, this is the case only when the velocity is constant. When an object has a constant velocity, the instantaneous velocity of the object is equivalent to the average velocity of the object. This is true because the velocity of the object remains constant over time.

For example, if an object travels at a speed of 20 meters per second for a time period of 5 seconds, then the instantaneous velocity at the end of the 5 seconds is 20 meters per second, and the average velocity of the object over the 5 seconds is also 20 meters per second. This is because the velocity remained constant throughout the entire time period. Therefore, option c is correct, this is the case only when the velocity is constant.

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Answer:

i) The extension of the cable can be calculated using the formula:

ΔL/L = F/(A*Y)

where ΔL is the extension in length, L is the original length, F is the tension force, A is the cross-sectional area of the cable, and Y is the Young's modulus of steel.

First, we need to calculate the cross-sectional area of the cable:

A = πr^2 = π(0.02m)^2 = 0.00126 m^2

Now we can calculate the extension:

ΔL/L = 400N/(0.00126m^2 * 2.0×10^11 N/m^2) = 1.5873×10^-6

ΔL = (1.5873×10^-6)(7m) = 1.11×10^-5 m

So the cable has to be extended by 1.11×10^-5 m under this tension.

ii) The work done in producing this extension can be calculated using the formula:

W = (1/2)FΔL

where W is the work done, F is the tension force, and ΔL is the extension in length.

Substituting the given values:

W = (1/2)(400N)(1.11×10^-5 m) = 2.22×10^-3 J

Therefore, the work done in producing this extension is 2.22×10^-3 J.

Explanation:

The plane's horizontal and vertical velocity components are 33.65 m/s and 53.85 m/s respectively.

What is velocity ?

velocity is defined as rate of change of displacement d of the object with respect to rate of change in time t. In mathematics It is written as :

v = d/t

it should be noted that, velocity is nothing but speed in particular direction. That is velocity is vector quality having both magnitude and direction where as speed is just the magnitude of velocity.

It is given that :

A plane moves with a velocity v of 63.5 m/s at 32 degrees South of East with the horizontal.

Therefore, the planes horizontal velocity components will be :

v₁ = vsinθ

v₁ = 63.5 x sin 32⁰

v₁ = 33.65 m/s

the planes vertical velocity components will be :

v₂ = vsinθ

v₂ = 63.5 x cos 32⁰

v₂ = 53.85 m/s

Therefore, the plane's horizontal and vertical velocity components are 33.65 m/s and 53.85 m/s respectively.

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Option 2 is the correct answer. The Roche limit is reached when ring particles closest to a planet fall into its atmosphere.

The Roche limit is the minimum distance at which a celestial body, such as a moon or a ring system, can approach a planet before being disrupted by tidal forces. When a celestial body gets too close to a planet, the planet's tidal forces can overcome its gravitational pull, and the body may be torn apart by these forces.

Option 2 is the correct answer. The Roche limit is reached when ring particles closest to a planet fall into its atmosphere. This happens because the tidal forces from the planet become stronger than the gravitational forces holding the particles together, causing them to break apart and fall towards the planet. Once the particles are within the Roche limit, they will continue to break apart and eventually form a disk or ring around the planet.

The Roche limit is an important concept in planetary science, as it helps us understand the structure and behavior of planets, moons, and other celestial bodies. It can also help us explain the formation of planetary rings, such as those around Saturn and other gas giants in our solar system.

So, the right response is Choice 2. When ring particles closest to a planet enter its atmosphere, the Roche limit is achieved.

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Answer:

Explanation:

Hope this helps!

Answer:

a. constructive interference

Explanation:

100% correct

Answer:

c

Explanation:

The net torque on the seesaw is 294 Nm.

Torque is the force that tends to rotate the body to which it was applied.

To calculate the net torque, we use the formula below

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, The net torque on the seesaw is 294 Nm.

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The  potential energy gained by the pie on lifting 5 meters from the ground floor to the second floor of the restaurant is 14.7 J.

Potential energy is a form of stored energy that is dependent on the relationship between different system components.

Potential energy is a characteristic of systems rather than of particular bodies or particles; for instance, the system made up of Earth and the elevated ball has more potential energy as they become further apart.

Given that mass of the apple pie: m = 0.30kg

The waitress lifts an apple pie: h = 5m

Acceleration due to gravity: g = 9.8m/s^2

Hence, potential energy gained by the pie: Ep = m•g•h

= 0.30kg x 9.8m/s^2 x 5m

= 14.7 J

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Answer:

The momentum of the steel ball is 0.28 kg m/sec.

Explanation:

The momentum of an object can be calculated using the formula: momentum = mass x velocity. In this case, the mass of the steel ball is 100 g, which is equivalent to 0.1 kg. The velocity of the ball is 2.8 m/sec. Plugging in the values into the formula, we get:

momentum = 0.1 kg x 2.8 m/sec

momentum = 0.28 kg m/sec

So the momentum of the steel ball is 0.28 kg m/sec.

In astronomy, the eccentricity aspect of the astronomical theory refers to the shape of an object's orbit around another object. Specifically, it measures how much an orbit deviates from a perfect circle.

The eccentricity of an orbit is defined as the ratio of the distance between the two foci of the ellipse that describes the orbit to the length of the major axis of the ellipse. An orbit with an eccentricity of 0 is a perfect circle, while an orbit with an eccentricity of 1 is a parabola, and an orbit with an eccentricity greater than 1 is a hyperbola. In the context of the Solar System, the eccentricity of a planet's orbit determines how close it comes to the Sun at its closest approach (perihelion) and how far away it gets at its furthest point (aphelion).

For example, the eccentricity of Earth's orbit is about 0.0167, which means that its distance from the Sun varies by about 3.1 million miles (5 million kilometers) between perihelion and aphelion. The eccentricity of an orbit can have important effects on the object that is orbiting. For example, objects with highly eccentric orbits may experience significant changes in temperature or gravitational forces as they move closer to or further away from the object they are orbiting.

This can have important consequences for the object's physical and chemical processes, and may even contribute to the development of life in some cases.

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Answer:

a subatomic particle that has a negative charge is called an electron

Explanation:

In order to be a vector quantity, the quantity needs to have a direction, besides its magnitude.

For example, temperature has no direction, only magnitude, but velocity has direction and magnitude.

From these options, the only one that is a vector quantity is displacement, therefore the correct option is A.

Answer:

c) Albert Einstein,

Explanation:

in his theory of special relativity, determined that the laws of physics are the same for all non-accelerating observers, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels.

hope this helped

-lvr

The radiation detector that uses detection of flashes of light is a scintillation counter.

A scintillation counter detects and measures ionizing radiation by using the excitation action of incoming radiation on a scintillating substance and detecting the light pulses that arise.

One of the most critical considerations for anyone who operate with or near radiation is being aware of the amounts of radiation present.

This is generally performed through the use of several types of radiation detectors.

The radiation detector that uses detection of flashes of light is a scintillation counter.

Hence,scintillation counter is the correct answer.

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The answer to the question is:

77.0 dB

When the distance from a point source of sound is doubled, the intensity level decreases by 6 dB. This decrease in intensity level with increasing distance is due to the spreading of sound waves over a larger area. According to the inverse square law, the intensity of sound is inversely proportional to the square of the distance from the source.

In this case, the distance is doubled from 2.00 m to 4.00 m. Since the distance is doubled, the intensity level will decrease by 6 dB. Therefore, we subtract 6 dB from the initial intensity level of 80.0 dB.

80.0 dB - 6 dB = 74.0 dB

So, the intensity level at a distance of 4.00 m from the source will be 74.0 dB.

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Answer:

program explanation

Explanation:

program explanation

The set of activities having a long-term aim should be a program.

A program refers to a set of instructions that a computer follows in order to perform a specific task. At the time When you program a computer, you provide it a set of instructions to make it able to perform a particular task.

So here the program should be considered.

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A 25.5 kg video cart is rolled down a hallway. It is accelerated at 0.12 m/s2. If a force of 30 N is applied to move the cart . The wheels have 26.4 N  force of friction against the floor

Force of friction is that force  that resists the sliding or rolling of one solid object over another

F(applied) - friction = F net

30 - fr = mass * acceleration

30 - fr  = 25.5  *  0.12  

fr = 30 - 3.06

  = 26.4 N

The wheels have 26.4 N  force of friction against the floor

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Answer:

W i think but i think it's W

Explanation:

Answer:

Gamma rays have the highest energies.

Explanation:

HOPE IT WILL HELP ^_^

Answer:

Gamma rays have the highest frequencies.

Explanation:

The speed of the Earth in its orbit about the sun is approximately 18.5 miles per second.

To find the speed of the Earth in its orbit about the sun, we need to divide the distance traveled by the Earth in one year by the time it takes to travel that distance. The distance the Earth travels in one year is the circumference of its orbit, which is 2 x pi x radius.

Using the given distance of 93,000,000 miles as the radius, we get:

circumference = 2 x pi x 93,000,000 = 584,336,720 miles

Since there are 3.15 x 10^7 seconds in one year, we can divide the circumference by the time to get the speed:

speed = 584,336,720 miles / 3.15 x 10^7 sec = 18.5 miles per second
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The correct answer is Option(C). The proper time between two events is measured by clocks at rest in a reference frame in which the two events are separated by the distance a light signal can travel during the time interval.

The concept of proper time is a fundamental concept in special relativity. It refers to the time interval measured by an observer who is at rest relative to the events being measured. According to special relativity, the passage of time can be affected by relative motion and gravitational fields.

The proper time between two events is independent of the reference frame from which it is measured. It is a fundamental property of the events themselves. In order to measure the proper time between two events, one must use clocks that are at rest relative to the events being measured.

Option (C)  states that the two events are separated by the distance a light signal can travel during the time interval. This is the correct choice because the speed of light is a fundamental constant in special relativity and is the maximum speed at which information can propagate. Using the distance traveled by light during a time interval ensures that the measurement of proper time is consistent with the principles of special relativity.

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--The question is incomplete, the complete question is:

"The proper time between two events is measured by clocks at rest in a reference frame in which the two events:  (A). occur at the same time  (B). occur at the same coordinates  (C). are separated by the distance a light signal can travel during the time interval  (D). occur in Boston  E. satisfy none of the above"--

Yes, I can defend the driver in court. In this scenario, The car skidded 39 m on a level road while attempting to stop before hitting a standing car.  The coefficient of kinetic friction between the car and the road is given as 0.90.

To defend the driver, it is important to analyze the situation using the principles of physics. By calculating the deceleration of the car using the skidding distance and the coefficient of friction, it is possible to determine the car's initial velocity. Comparing this velocity to the speed limit of 35 mi/h, it can be argued that the driver was not exceeding the speed limit and the ticket should be dismissed. Deceleration refers to the reduction in speed or velocity of an object over time. It is the opposite of acceleration, which represents an increase in speed. When an object decelerates, it slows down.

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Answer:

N = q / e    where q is the total charge on the ion and e = 1.6E-19 the charge on an electron or N = coulombs / (coulombs / electron)

Answer:

It helps prevents falls and supports your body. So having a strong core is beneficial to everyone because it allows your body to function properly. Improved Balance and Stability. Core exercises train the muscles in your pelvis, lower back, hips and abdomen to work together.