______ Is the degree of exactness of a measurement; _____ Describes how well the results of measurement agree with the real value

A: accuracy, precision
B: Percision, accuracy
C: accuracy, the line of best fit
D: Percision, the line of best fit

The original two light bulbs will appear brighter when the third resistor is added in parallel.

When a third resistor is added in parallel to the other two resistors in a circuit, it will have an impact on the overall brightness of the original two light bulbs.

In a parallel circuit, each resistor has its own branch connected to the power source. The current flowing through each branch is inversely proportional to the resistance of that branch. Adding a third resistor in parallel means an additional path for current to flow.

The introduction of the third resistor reduces the total resistance of the circuit. As a result, the total current drawn from the power source increases, as per Ohm's Law (I = V/R). The increased current is distributed among the parallel branches, including the original two light bulbs.

Since the current through the bulbs is now greater, their brightness will also increase. This is because the brightness of an incandescent light bulb is directly proportional to the current passing through it.

It's worth noting that the specific effect on brightness depends on the resistance values of the resistors and the characteristics of the light bulbs. However, in general, adding a resistor in parallel reduces the overall resistance, increases the current, and subsequently enhances the brightness of the light bulbs in the circuit.

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The weight watcher must climb : 3.45 km to work off the equivalent of a large piece of chocolate cake rated at 670 calories.

First step : convert the energy to joules

670 calories to Joules

E = 670 * 10³ * 4.184

  = 2803280 J

Next step : Equate energy to gravitational potential energy

2803280 J = mgh

2803280 = 82.9 * 9.8 * h

Therefore :

h = 2803280 / ( 812.42 )

  = 3451 m  = 3.45 Km

Hence we can conclude that The weight watcher must climb : 3.45 km

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B. The reactants have higher potential energy, and energy is absorbed is the statement that best describes the total energy change of the system.

The difference in the amounts of chemical energy that are stored in the products and reactants accounts for the energy change in a chemical reaction. Enthalpy refers to the system’s heat content or stored chemical energy.

Potential energy can be described as the energy which a body possess because of its position. The potential energy can also be said as stored energy. The energy diagram that shows the changes in energy is called as a chemical reaction.

Potential energy and the Reaction progress are shown in the problem and from this the reactants are seen as the substance which reacts and form one or more than one product.

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Step 1: Use Pictures

Research how other ads (especially Newspaper ads) market their toothpaste. Usually they just show a picture of a tube of toothpaste with either their target demographic using it or the toothpaste squirting out.

Step 2: Accentuate the Good Stuff

Make sure your audience is aware of all the benefits and give them evidence so they can determine if it's the best choice for them, and be sure to list all ingredients and list all additional components that sets it apart from other brands. Think of this step as a resume for your toothpaste. Obviously don't lie about what your toothpaste can do, but you want your potential customers to consider buying it.

Step 3: Focus Group (Feedback)

Post some results of how well your toothpaste was received by a group of people. Keep it sweet and simple and straight to the point. (Gather a diverse group of people who are in your target demographic to try the toothpaste, and ask for their opinions, make tweaks if needed and test again until a good chunk of people like it, that's how you get support for your brand of toothpaste.)

Step 4: Spark the Press

Reach out to local newspapers/magazines and show them your portfolio of people's feedback on your toothpaste, and with whatever money you have, you'll be paying them to allow you to put your ad in their paper (sometimes it can be vise versa).

Hope this helps, this is just a short summery of what I learned in Entrepreneurship.

The coefficient of static friction between the block of wood and the table is 0.449.

The weight of the block of wood is Mg = 4.0 kg × 9.81 m/s^2 = 39.24 N.

The coefficient of static friction μs is given by the equation μ_s = fs/N, where N is the normal force from the table.

Since the block is not accelerating vertically, we know that N = Mg, so we have:

μs = fs/N = 17.64 N / 39.24 N = 0.449

Therefore, the coefficient of static friction between the block of wood and the table is 0.449.

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Organelles are specialized structures within cells that perform specific functions, such as energy production, protein synthesis, and waste removal.

Some examples of organelles include mitochondria, which produce energy for the cell, and ribosomes, which are involved in protein synthesis.

The size of cells can vary widely depending on the organism and the type of cell. For example, human cells can range from 10 to 30 micrometers in diameter, while bacterial cells are typically much smaller, ranging from 1 to 5 micrometers in diameter.

In summary, organelles are specialized structures within cells that perform specific functions, and the size of cells can vary widely depending on the organism and the type of cell.

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Answer:

Based on  the passage, the article's claim is not true.  Therefore, the answer is:

No, because radio waves  have energies that are too  low to fall in the ionizing  range.

Explanation:

Radio waves are generally known as forms of non-ionizing radiation.  This means that they do not have enough energy, unlike microwaves, to separate electrons from atoms or molecules, thereby ionizing them.  They cannot cause electron displacement, as claimed in the article.  Therefore, they cannot break chemical bonds, which can cause chemical reactions or DNA damage. As non-ionizing radiation, radio waves occur at lower frequencies in the electromagnetic spectrum.

Answer: Rectangular frames are easy to make but can get pulled out of shape. so if the sides are still attached , then the figure formed is parallelogram. useing the given measurement use the formula of a parallelogram.

formula : A = BASE X HEIGHT

Explanation:

Finding unknown responses for statics beam and truss issues can be done by solving for the total of pressures acting in the x- and y-directions. When in balance, the total of the forces acting in each direction on each beam and truss will be equal to zero.

A beam is a long, slender structural component that can support twisting stresses by deforming transverse to its long axis. It should be noted that bending loads are imparted across the long plane.

Steel beams can have cross-sections in a variety of forms, including square, rectangle, circular, I, T, H, C, and tubular.The normal or axial force, the shearing force, and the bending moment are the three potential internal forces that may be generated when a beam or frame is exposed to transverse loadings, as shown in section k of the cantilever.

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Answer:

True, the total amount of mechanical energy is merely the sum of the potential energy and the kinetic energy. This sum is simply referred to as the total mechanical energy.

Explanation: Hope it helps you:))))

have a good day

Answer:

The value is \(E = 14.12 \ N/C\)

Explanation:

From the question we are told that

     The radius of the cylinder is  \(r = 12 \ cm = 0.12 \ m\)

     The density of the charge is  \(\rho = 5.0 \ nC/m^3 = 5.0*10^{-9} \ C/m^3\)

    The position consider is  a =  5.0 cm  =  0.05 m

Gnerally from the magnitude of the magnetic field is mathematically represented as          

       \(E = \frac{\rho * s}{ 2 * \epsilon_o }\)

Here \(\epsilon_o\) is the permittivity of free space with value \(\epsilon_o = 8.85 *10^{-12} \ C/(V \cdot m)\)

=>     \(E = \frac{5.0*10^{-9} * 0.05}{ 2 * 8.85*10^{-12} }\)

=>   \(E = 14.12 \ N/C\)

Answer:

option 1

Explanation:

Answer:

Centripetal acceleration = 3.125 m/s²

Explanation:

Given the following data;

Radius, r = 50 m

Velocity, V = 12.5 m/s

To find the centripetal acceleration;

Centripetal acceleration = Velocity²/radius

Centripetal acceleration = 12.5²/50

Centripetal acceleration = 156.25/50

Centripetal acceleration = 3.125 m/s²

Therefore, the centripetal acceleration of the greyhound running on a circular track is 3.125 meters per seconds square.

Continents have undergone major shifts around 12 times.

To calculate the number of times continents have gone through major shifts in the 4.6 billion year history of the Earth, we can divide the total time span by the average duration between shifts.

Total time span = 4.6 billion years

Average duration between shifts = 395 million years

To convert the total time span to years, we multiply 4.6 billion by 1 billion (1 billion = 1,000 million).

Total time span in years = 4.6 billion years × 1 billion = 4.6 × 10^9 years

Now we can calculate the number of shifts by dividing the total time span by the average duration between shifts:

Number of shifts = Total time span / Average duration between shifts

               = (4.6 × 10^9 years) / (395 million years)

               ≈ 11.65

Therefore, continents of our planet have gone through major shifts approximately 11.65 times in the 4.6 billion year history of the Earth. Since we cannot have a fraction of a shift, we can round the result to the nearest whole number. Thus, continents have undergone major shifts around 12 times.

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Victor's acceleration when he increases from 12 m/s to 29 m/s over a period of 6 seconds is 2.83 m/s².

Acceleration can be defined as the rate of change of velocity.

The S.I unit of acceleration is m/s².

To calculate Victor's acceleration, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values above into equation 1

Hence, Victor's acceleration when he increases from 12 m/s to 29 m/s over a period of 6 seconds is 2.83 m/s².

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Answer:

Handwashing with soap has been shown to reduce the risk of gastroenteritis by up to 47%.

Of course, avoiding contaminated foods that could harbor toxic bacteria and parasites is also important.

Explanation:

Here's what I found on the web to further explain and give you more info :) , "Vaccinations are also effective, particularly for rotavirus. The rotavirus The use of clean water and good sanitation practices are important for reducing rates of infectious gastroenteritis.

vaccines have seen a marked decline in the rate and severity of disease in both developing and developed countries.

Oral rehydration is the cornerstone of treatment for those suffering from mild to moderate dehydration. This can be achieved through a solution containing water, salts, and sugar. For severe cases of dehydration, hospitalization and intravenous fluids may be required.

Antibiotics are generally not recommended unless the gastroenteritis is bacterial or parasitic and symptoms are severe.

I hope I helped! :)

Would appreciate Brainliest! ;)

The minimum force required to move the book and paper system is 0.0098 times the mass of the book.

To determine the minimum force required to move the book and paper system, we need to consider the forces acting on the system. There are two forces acting on the paper: the force of friction and the applied force P. The force of friction is equal to the coefficient of friction times the normal force, which is the weight of the paper. The weight of the paper is 0.1Mg, where g is the acceleration due to gravity.

Ffriction = μN = μ(0.1Mg) = 0.01Mg

To move the paper, the applied force P must be greater than or equal to the force of friction. Therefore:

P ≥ Ffriction

P ≥ 0.01Mg

Substituting the weight of the paper, we get:

P ≥ 0.01M(9.8 m/s²)(0.1) = 0.0098M

Therefore, the minimum force required to move the book and paper system is 0.0098 times the mass of the book.

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Answer:

d. convention

Explanation:

hope this helped

At 30°C, the rms speed of a sample of oxygen with a molar mass of 16 g/mol is approximately 482.34 m/s.

The root mean square (rms) speed of a gas molecule is a measure of the average speed of the gas particles in a sample. It can be calculated using the formula:

vrms = √(3kT/m)

Where:

vrms is the rms speed

k is the Boltzmann constant (1.38 x 10^-23 J/K)

T is the temperature in Kelvin

m is the molar mass of the gas in kilograms

To calculate the rms speed of oxygen at 30°C (303 Kelvin) with a molar mass of 16 g/mol, we need to convert the molar mass to kilograms by dividing it by 1000:

m = 16 g/mol = 0.016 kg/mol

Substituting the values into the formula, we have:

vrms = √((3 * 1.38 x 10^-23 J/K * 303 K) / (0.016 kg/mol))

Calculating this expression yields the rms speed of the oxygen sample:

vrms ≈ 482.34 m/s

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Answer Explanation:

d = vt

You will be 3(15) = 45 m west of where you began.

As we do not know where the lion is to begin with, it's hard to say where we will end up relative to it.

Answer:

hello your question is incomplete below is the missing part

Ex = 0

Ey = \(\frac{-2kQ}{\pi a^2}\)

Explanation:

Attached below is a detailed solution showing the integration of the expression dEx and dEy from ∅ = 0 to ∅ =π

Ex = 0

Ey = \(\frac{-2kQ}{\pi a^2}\)

Remain the same.

Explanation:

The kinetic energy of the ejected electrons, and thus the resulting photocurrent, does not depend on the intensity of the incident radiation. Instead, it depends on the frequency. So since the stopping potential is used to reduce the photocurrent to zero and the photocurrent does not depend on the intensity, the stopping potential remains the same.

Answer:

Explanation:

The Workdone is the product of force and distance, Hence, the Workdone on the box from distance x = 0 meters and x = 16 meters is 0 Joules.

Using the graph given :

The work done from x = 0 to x = 16 metres ;

The distance can be split evenly into :

(x = 0 to x = 8) and (x = 8 to x = 16)

Workdone = Force × distance

Workdone from ; x = 0 to x = 8 ;

Force at a distance of 8 meters = - 40N

Workdone = - 40N × 8 m = -320 Nm

Workdone from ; x = 8 to x = 16 ;

Force at a distance of 16 meters = 40 N

Workdone = 40 N × 8 m = 320 Nm

The total workdone :

(-320 + 320) Nm = 0 J

.

Therefore, the Workdone ls 0 Joules.

The time interval between the man clapping and hearing his echo is approximately 1.75 seconds.

An echo is a repetition or reflection of a sound or signal. It can be caused by sound waves bouncing off a surface, signal interference, or the repetition of a message in communication.

The speed of sound in air at room temperature is approximately 343 meters per second. When a person claps, the sound waves propagate outward in all directions and reach the school building, where they bounce off and return to the person as an echo. The time it takes for the sound to travel the distance to the building and back to the person is the time interval between the clap and the echo.

To calculate the time interval, we can use the following formula:

time = distance / speed

where distance is the total distance traveled by the sound (twice the distance from the person to the school building), and speed is the speed of sound in air.

distance = 2 x 300m = 600m

speed = 343 m/s

time = 600m / 343 m/s = 1.75 seconds (rounded to two decimal places)

Therefore, the time interval between the man clapping and hearing his echo is approximately 1.75 seconds.

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The average acceleration of the motorcycle over the given distance is approximately 9.39 m/s².

To calculate the average acceleration of the motorcycle, we can use the formula:

Average acceleration = (final velocity - initial velocity) / time

First, let's convert the final velocity from km/h to m/s since the distance is given in meters. We know that 1 km/h is equal to 0.2778 m/s.

Converting the final velocity:

Final velocity = 78 km/h * 0.2778 m/s = 21.67 m/s

Since the motorcycle starts from rest (initial velocity is zero), the formula becomes:

Average acceleration = (21.67 m/s - 0 m/s) / time

To find the time taken to reach this velocity, we need to use the formula for average speed:

Average speed = total distance/time

Rearranging the formula:

time = total distance / average speed

Plugging in the values:

time = 50 m / 21.67 m/s ≈ 2.31 seconds

Now we can calculate the average acceleration:

Average acceleration = (21.67 m/s - 0 m/s) / 2.31 s ≈ 9.39 m/s²

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a) The magnitude will be 0.838m

b) The displacement will be -17.35°

The path covered by an object from its initial point to final point.

Forces acting on the duck

x-axis:    0.13 + 0.16*cos(-56°) = 2.7 * ax  

ax = 0.0813 m/s^2

y-axis:    0.13*sin(-56°) = 2.7 * ay  

ay = -0.0491 m/s^2

The displacement on the x-axis

X = Vox * t + ax/2 * t²

X = 0.12* 3.2 + 0.0813/2*3.2²

X = 0.8

The displacement on the y-axis:

Y = Voy * t + ay/2 * t²

X = 0 - 0.0491/2*3.2²

Y=-0.25m

So, the magnitude and angle of this displacement [0.8,-0.25] is:

0.838m  at an angle of -17.35°

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The potential difference (voltage) between the plates is approximately 1.45 kV.

The kinetic energy of an electron can be related to the potential difference between the plates of an electric field using the equation:

KE = qV,

where KE is the kinetic energy of the electron, q is its charge, and V is the potential difference between the plates.

We know that the electron is accelerated from rest to a final velocity of 8 x 10^7 m/s, so its change in kinetic energy is given by:

ΔKE = 1/2 mv^2 - 1/2 m(0)^2 = 1/2 mv^2

where m is the mass of the electron.

The potential difference between the plates can be found by rearranging the equation to solve for V:

V = ΔKE / q

Substituting the values we have:

V = (1/2) mv^2 / q

The mass of an electron is approximately 9.11 x 10^-31 kg, and its charge is -1.6 x 10^-19 C. Substituting these values and the final velocity of 8 x 10^7 m/s, we get:

V = (1/2) (9.11 x 10^-31 kg) (8 x 10^7 m/s)^2 / (-1.6 x 10^-19 C)

V = -1.45 kV

Therefore, the potential difference (voltage) between the plates is approximately 1.45 kV.

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Answer:

at number 8 the answer is Uranus