when the ciliary body changes the size and shape of the lens by contracting or relaxing, this refractory adjustment is known as:

Explanation:

The answer is 150 because we must subtract again, we subtract the reactant (50) from the highest point in the graph, 200 – 50 equals 150.

Answer: 137.5m

Explanation:

We are given the acceleration, the initial velocity, and implicitly given the final velocity. It wasn't stated, but the final velocity is zero. The car will eventually come to a stop. We can use the kinematic formula below to find the displacement given the initial conditions:

\(v_f^2=v_i^2+2ad\)

\(0^2=55^2+2(-11)(d)\)

\(-55^2=-22d\)

\(55^2=22d\)

\(3025=22d\)

\(d=137.5m\)

The relative frequency of salespersons earning more than $1,599 per month is 0.28 or 28%.

To find the relative frequency of salespersons earning more than $1,599 per month, we can use the formula:

Relative frequency = Number of salespersons earning more than $1,599 / Total number of salespersons

In this case, the number of salespersons earning more than $1,599 is given as 42, and the total number of salespersons is 150.

Plugging these values into the formula:

Relative frequency = 42 / 150

Simplifying the calculation:

Relative frequency = 0.28

Therefore, the relative frequency of salespersons earning more than $1,599 per month is 0.28 or 28%.

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--The complete Question is, In a sales company, there are 150 salespersons. The company keeps track of their monthly earnings. Out of these salespersons, 42 earn more than $1,599 per month. What is the relative frequency of those salespersons that earn more than $1,599?--

Answer:

The electron gives up It's extra energy in a form called "photon light" and falls back down to its normal energy level

Explanation:

Answer:

A

Explanation:

Answer:

Distance divided by time

Explanation:

To find the density of freon-11 at 120°C and 1.5 atm, we need to use the ideal gas law equation: PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature in Kelvin.

First, we need to convert the temperature to Kelvin by adding 273.15: 120 + 273.15 = 393.15 K.

Next, we need to find the number of moles of freon-11. We can use the molar mass of freon-11, which is 137 g/mol, and the mass of the gas. Let's assume we have 1 gram of freon-11. Then:

n = 1 g / 137 g/mol = 0.0073 mol

Now we can rearrange the ideal gas law equation to solve for density:

n/V = P/RT

Density = (n x Molar Mass) / V

Density = [(P x Molar Mass)/(R x T)] x V

Plugging in the values we have:

Density = [(1.5 atm x 137 g/mol)/(0.08206 L.atm/mol.K x 393.15 K)] x 1 L

Density = 5.91 g/L

Therefore, the density of freon-11 at 120°C and 1.5 atm is 5.91 g/L.

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The statement "the primary datum feature for a runout tolerance must never be a flat surface" is false. The statement "the primary datum feature for a runout tolerance must never be a flat surface" is false.

Runout tolerance is a measurement used to check the circularity of the part with the axis. It is the maximum difference between the actual circular shape of the part, and its ideal circular shape, which is formed when the part is spun. A flat surface is not a good datum feature to use for runout tolerance since it does not contain any axis for rotation.However, it is not accurate to say that the primary datum feature for a runout tolerance must never be a flat surface. It is possible to use a flat surface as a datum feature for runout tolerance, but it is not the ideal feature to use. In some situations, the flat surface may be the only datum feature available. In this case, it is necessary to use the flat surface as a datum feature and adjust the tolerances accordingly.

Runout tolerance is a crucial aspect of geometric dimensioning and tolerancing (GD&T). It helps ensure that the circularity of a part with respect to its axis is within acceptable limits. Runout tolerance is measured by the maximum difference between the actual circular shape of the part and its ideal circular shape, which is formed when the part is spun. Runout is important in manufacturing since it helps ensure that the parts function correctly and do not experience any issues due to excessive runout.One of the key aspects of runout tolerance is the datum feature. The datum feature is the surface or surfaces used as a reference to measure the tolerances.

The datum feature is important since it defines the coordinate system used for measurement. The primary datum feature is the surface that is critical to the functionality of the part. This surface is usually the surface that contacts other parts or components.There is a misconception that a flat surface cannot be used as a primary datum feature for runout tolerance. This statement is false. It is possible to use a flat surface as a datum feature for runout tolerance, but it is not the ideal feature to use. In some cases, the flat surface may be the only datum feature available. In this case, it is necessary to use the flat surface as a datum feature and adjust the tolerances accordingly.

The primary datum feature for a runout tolerance does not have to be a flat surface. It is possible to use a flat surface as a datum feature for runout tolerance, but it is not the ideal feature to use. The choice of the datum feature depends on the specific requirements of the part and the manufacturing process.

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Answer:

Force = 4.25 Newton

Explanation:

Given the following data;

Mass = 10 kg

Momentum = 15 Kgm/s

Time, t = 20 seconds

Final velocity, V = 10 m/s

To find the average force required;

First of all, we would determine the initial velocity of the object.

Momentum = mass * velocity

15 = 10 * velocity

Velocity = 15/10

Velocity = 1.5 m/s

Next, we would determine the acceleration of the object by using the first equation of motion;

V = U + at

10 = 1.5 + a*20

10 - 1.5 = 20a

8.5 = 20a

Acceleration, a = 8.5/20

Acceleration, a = 0.425 m/s²

Lastly, we would find the average force by using the formula;

Force = mass * acceleration

Force = 10 * 0.425

Force = 4.25 Newton

Answer: The Rock will be traveling at 5.93 m/s or around 21.4 km/hr or 13.3 mi/hr when it reaches the ground. (you can use go0gle to convert the speeds to something else, if needed)✅

PLEASEE GIVE BRANLIEST!!!

Explanation: ✅

The speed of the rock when it reaches the ground can be calculated using the equation:

v = √(2gh)

where v is the velocity, g is the acceleration due to gravity (approximately 9.8 m/s^2 on Earth), and h is the height from which the rock is dropped.

So, the speed of the rock when it reaches the ground will be approximately:

v = √(2 * 9.8 * 18.16) = √(35.1328) = 5.93 m/s

It will be traveling at 5.93 m/s or around 21.4 km/hr or 13.3 mi/hr when it reaches the ground.

Answer:

góc phản xạ 15°

Explanatin

Answer:

100 N is the answer of the question

Answer:

The direction of partlcle movement is perpendicular to the direction of movement of energy of the wave.

Answer:

the answer of question no5 is b

According to the given statement the number x is 2. The number x represents the dimensions of the term p * a in the given equation.

By comparing the dimensions of both sides of the equation, we find that x is equal to 2.

The equation given is:

Volume per second = k * (p * a) / n

Where:
- k is a constant
- p is the excess pressure (force per unit area)
- a is the radius of the pipe
- n is the frictional quantity of dimension MLT⁻¹


To find the number x, we need to determine the dimensions of each term in the equation.

1. Dimension of Volume per second:

  - Volume has the dimension L³ (length cubed)
  - Time has the dimension T (time)
  - Therefore, Volume per second has the dimension L³  / T

2. Dimension of k:

  - The equation states that k is a constant. Constants are dimensionless.

3. Dimension of p * a:

  - Pressure has the dimension M / (L * T² ) (mass divided by length and time squared)
  - Radius has the dimension L (length)
  - Multiplying pressure by radius results in the dimension M / (L * T² ) * L = M / (L²  * T² )

4. Dimension of n:

  - Given in the question, n has the dimension MLT⁻¹
(mass times length times time to the power of -1)

Now, we can equate the dimensions:

L³  / T = k * (M / (L²  * T² )) * MLT⁻¹


Simplifying the dimensions:

L³  / T = k * M / (L²  * T² ) * MLT⁻¹


L³  / T = k * M / L²  * M / T²  * L^-1 * T⁻¹


L³  / T = k * M²  / L²  * T⁻¹


To equate the dimensions, both sides of the equation must have the same dimensions. Therefore:

L³ / T = k * M² / L² * T⁻¹


Comparing the dimensions on both sides, we can conclude:

L³ / T = k * M² / L²* T⁻¹

The dimensions on the left side are L^3 / T, and the dimensions on the right side are (k * M²) / (L² * T).

Therefore, the number x is 2.

The number x represents the dimensions of the term p * a in the given equation.

By comparing the dimensions of both sides of the equation, we find that x is equal to 2.

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Answer:

about 5000 °F

Explanation:

Answer:

the final volume of the gas is 1.923 L.

Explanation:

Given;

initial pressure, P₁ = 8.4 atm

initial volume of the gas, V₁ = 1.9 L

final pressure of the gas, P₂ = 8.3 atm

The final volume of the gas is calculated by applying Boyle's law as follows;

P₁V₁ = P₂V₂

V₂ = P₁V₁ / P₂

V₂ = (8.4 x 1.9) / 8.3

V₂ = 1.923 L

Therefore, the final volume of the gas is 1.923 L.

According to the research, the correct option is a. The heat generated from the fission reaction is used to boil water, which rises and spins a turbine.

In fusion, two atoms come together to form a larger one, releasing enormous amounts of energy in the process, this is used by generators to produce electricity.

As a result of nuclear fusion, large amounts of heat are generated that are used to produce pressurized steam, which allows mechanical energy to be obtained to start up electric power generators.

Therefore, we can conclude that according to the research, the correct option is a. The heat generated from the fission reaction is used to boil water, which rises and spins a turbine.

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Ungrounded alternating-current systems from 50v to 1,000v or less that are not required to be grounded in accordance with article 250.20(b) shall have ground detectors installed.

The current systems is known to be a kind of techniques that are often used to examine the current systems and know the extent of support given to the set of business activities.

A ground detector is known to be a tool that is often use to be able to know or detect conductor insulation that are said to be resistance to ground.

Note that the ground detection is also a sensing equipment that is linked as close as possible to where the system gets  its supply and as such, Ungrounded alternating-current systems from 50v to 1,000v or less that are not required to be grounded in accordance with article 250.20(b) shall have ground detectors installed.

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The amount of force necessary to keep it submerged in water is F=0.258N.

The force required to hold a table tennis ball submerged in water is calculated using the formula:

\(F =\frac{ (\rho * V * g) }{ A}\)

Where F is the force, ρ is the water's density, V is the ball's volume, g is its gravitational acceleration, and A is its cross-sectional area.

The following formula is used to determine the ball's volume:

\(V = \frac{4}{3}*pi*r^3\)

where r is the ball's radius.

The radius of the ball is half its diameter, thus:

\(r = 3.8 cm^2\)

Therefore,

\(V = \frac{4}{3}*pi *(3.8 cm ^2)3\\V = 0.5222 cm3\)

The cross-sectional area of the ball is calculated using the formula:

\(A = \pi * r^2\\\\A = \pi* (\frac{3.8 cm }{ 2})^2\\A = 4.5257 cm^2\)

Substituting the values in the above formula,

\(F =\frac{ (0.084 g/cm^3 * 0.5222 cm^3 * 9.8 m/s^2) }{4.5257 cm^2}\\F = 0.258 N\)

Hence, the force needed to keep it submerged in water is 0.258N

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The mass of oil contained in the tank is 2400 kilograms.

To calculate the mass of oil contained in the tank, we need to determine the volume of oil first. The volume of the oil can be calculated using the formula:

Volume = Base Area × Height

Given:

Base Area = 2.5 square meters

Height = 1.2 meters

Volume = 2.5 m² × 1.2 m

Volume = 3 cubic meters

Next, we can calculate the mass of the oil using the formula:

Mass = Density × Volume

Given:

Density of oil = 800 kg/m³

Volume = 3 cubic meters

Mass = 800 kg/m³ × 3 m³

Mass = 2400 kilograms

Therefore, the mass of oil contained in the tank is 2400 kilograms.

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When you look at an object in a mirror, the image appears behind the mirror due to the principles of reflection. Reflection occurs when light waves bounce off a surface. In the case of a mirror, the smooth surface of the mirror reflects the light waves that hit it.

The image formed in a mirror is a result of the light rays bouncing off the mirror and reaching our eyes. The reflection follows the law of reflection, which states that the angle of incidence (the angle between the incoming light ray and the normal to the mirror's surface) is equal to the angle of reflection (the angle between the reflected light ray and the normal to the mirror's surface).

As a result of this reflection, the light rays appear to originate from a point behind the mirror. This virtual image is formed at a location where the extended reflected rays intersect. Our eyes perceive this virtual image as if it were located behind the mirror.

Therefore, the image appears behind the mirror because it is a result of the reflection of light rays off the mirror's surface.

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Answer:

19.98Joules

Explanation:

Energy possessed by the body is the kinetic energy

Kinetic Energy = 1/2mv²

m is the mass

v is the velocity

For the 4kg moving at 6m/s

kE = 1/2 * 4 * 6^2

KE = 1/2 * 4 * 36

KE = 72Joules

For the 4kg moving at 5.1m/s

kE = 1/2 * 4 * 5.1^2

KE = 1/2 * 4 *26.01

KE = 52.02Joules

Amount of Energy lost = 72 - 52.02

Amount of Energy lost = 19.98Joules

Hence the amount of Energy lost is 19.98Joules

Answer:

Which battery has a longer battery life?

Explanation:

duh

Answer:

is leslin testing on a brand hope it's helpful to you

1. The time taken to discharge to 2 V is 2×10⁻⁹ s

2. The time taken to discharge to 1 V is 5×10⁻¹⁰ s

The energy stored in a capacitor is given by

E = ½CV²

But

E = Pt

Thus,

Pt = ½CV²

Where

With the formula (Pt = ½CV²), we can determine the time in each case. Detail below:

Data obtained from the question include:

Pt = ½CV²

100 × t = ½ × 1×10⁻⁷ × 2²

Divide both sides by 100

t = (½ × 1×10⁻⁷ × 2²) / 100

t = 2×10⁻⁹ s

Thus, the time required to discharge to 2 V is 2×10⁻⁹ s

Data obtained from the question include:

Pt = ½CV²

100 × t = ½ × 1×10⁻⁷ × 1²

Divide both sides by 100

t = (½ × 1×10⁻⁷ × 1²) / 100

t = 5×10⁻¹⁰ s

Thus, the time required to discharge to 1 V is 5×10⁻¹⁰ s

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Earth Science is the scientific study which involves geology, geography, and ecology.

Answer:

earth science!

Explanation:

Answer:

the fast carbon cycle follows the movement of carbon through living (biotic) components of an ecosystem. This occurs faster because life moves more quickly. The fast carbon cycle focuses primarily on the biosphere, while the slow carbon cycle is more involved with the hydrosphere, lithosphere and atmosphere.

Explanation:

The types of energy that move through the system are as follows: potential energy, kinetic energy, mechanical energy, and electrical energy.The water stored in the dams contains potential energy.

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In case of node to node, the message travels faster. Our brain can exchange signals with our toes in a few thousandths of a second by jumping signals hundreds of times quicker than signals that travel along the surface of the axon.

The speed of nerve impulse conduction is accelerated by the presence of a myelin sheath. Similar unmyelinated axons conduct impulses about ten times slower than myelinated ones do.

Action potentials "jump" from node to node as they move down the axon. The term saltatory conduction, which means "to leap," describes this. Moving in an axon with myelin is slower than traveling along an axon through saltatory conduction.

E. myelinated neurons conduct impulses at the quickest speeds. A fatty layer called myelin surrounds the neuronal axon. When compared to continuous conduction on unmyelinated axons, saltatory conduction on myelinated axons is a faster and more energy-efficient type of impulse conduction.

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The identification of the correct color of the light with the proper justification would be by student 4: violet, because it has the highest frequency, therefore the correct answer is option D.

It can be understood in terms of the distance between any two similar successive points across any wave for example wavelength can be calculated by measuring the distance between any two successive crests.

As given in the problem, students in a science class were provided with this image and asked to identify which color of light would refract the most if white light was passed through a prism.

Student 4 would correctly identify and justify violet as the appropriate hue of the light since it has the greatest frequency, making option D the right response.

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