While taking measurements using the uv-vis spectrometer, if the absorbance reading of a sample is more than _____, we will have to dilute the sample and collect a lower absorbance reading.

The height of the cliff is 200 meter where potential energy of the boulder is measured.

Potential energy in physics is the energy that an item retains as a result of its position in relation to other objects, internal tensions, electric charge, or other elements.

The gravitational potential energy of an item, the elastic potential energy of a stretched spring, and the electric potential energy of an electric charge in an electric field are examples of common types of potential energy.

The height of the cliff is = 90,000 ÷ (45 ×10) meter = 200 meter.

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Answer:

28.8kg

Explanation:

h1=8m

h2=2m

h2-h1=6m

k=48 N/m

g=10m/(s^2)

w=F

10m=6*48

m=28.8kg

Measurements taken with a spectrometer require a cuvette to eliminate background readings from components other than what is being measured in the sample.

A spectrometer technological device is a tool used in the b]lab to determine the light that may pass across a substance, which is an intrinsic property of a material and can be used to determine the type of biomolecule.

Therefore, with this data, we can see that a spectrometer technological device is used to determine the substance by using light as source to measure.

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The statement that matches refraction is Waves bend while passing from one medium to another.

Generally, Your definitions for the terms reflection, diffraction, transmission, absorption, and refraction are correct.

Here are a few more examples to help solidify your understanding:

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The first law of thermodynamics, which states that you cannot produce or destroy matter or energy, is broken by this. Critics assert that the big bang theory implies the universe didn't exist before the big bang.

According to a theoretical hypothesis known as the Big Bang theory, the cosmos first existed in a state of extreme density and heat. The evolution of the observable universe from the earliest known times through its later large-scale form is explained by a variety of cosmological models of the Big Bang. These models provide a thorough justification for a wide variety of known phenomena, including the abundance of light elements, cosmic microwave background (CMB) radiation, and large-scale structure. Cosmic inflation, or the abrupt and extremely rapid expansion of space during the Universe's early moments, provides an explanation for the flatness problem, or the appearance of uniformity over the whole cosmos. The initial conditions of the Big Bang, however, are not currently well modeled by any commonly accepted quantum gravity theory.

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Frequency is defined as the number of repetitions of waves occurring in 1 second. The frequency heard by the man as the ambulance move toward him will be greater than 450 Hz.

Frequency is defined as the number of cycles completed in 1 second. Frequency is given by the formula as,

\(\rm{Frequency =\frac{1}{time } }\)

As the formula shows frequency is inversely proportional to the time that shows if the time is decreasing frequency will increase and vice versa.

In the above case, the ambulance is moving toward the men. So that the time to meet up is decreased that's why the frequency will be greater than the initial frequency from the siren.

Hence the frequency heard by the man as the ambulance move toward him will be greater than 450 Hz.

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Answer: the answer is b more than 450 hz

Explanation: i took the test

Answer: 17cm.

Explanation:

The equation you're using is:

Δd = df - di

Which means the change in position is equal to the final position minus the starting position. In this case that works out to 20cm - 3cm = 17cm. We're only interested in how much the snail moved, not how long it took to move, so even though they give a time it actually doesn't matter for this question.

It would take 500 seconds (or 8 minutes and 20 seconds) for a net charge of 2.5C to pass a location in a wire carrying a steady current of 5mA.

To calculate how long it would take for a net charge of 2.5C to pass a location in a wire carrying a steady current of 5mA, we can use the equation:
q = I * t
where q is the charge, I is the current, and t is the time.
Rearranging the equation, we get:
t = q / I

Substituting the values given in the question, we get:
t = 2.5C / 0.005A
Simplifying, we get:
t = 500 seconds
Therefore, it would take 500 seconds
It is important to note that this calculation assumes that the wire is a perfect conductor with no resistance, which is not the case in real-world scenarios. In reality, the wire would have some resistance which would affect the flow of current and the time it takes for the charge to pass through the wire.

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Answer:

Boyle's law, Charles's law, and Avogadro's law

Explanation:

The speed of the automobile after 1.32 s have elapsed is 11.77 m/s

we are given the speed which is  19.8 m/s and the time which is  1.32 s.As we know  that acceleration is the rate of change of velocity,  so the formula we can use is to calculate the value of velocity

v = u + a t  .................. (1)

here the t is the time taken, u is the initial velocity and a is  the acceleration. As after slamming the brakes, there rising up an  external force which  is due to friction, and it is equal to the  product of normal force and coefficient of kinetic friction, as  it is only external  force acting horizontally and here the normal force is equal to the gravity

using Newton's 2nd Law,

F(total) = ma

=> Ff = m a

⇒ -μk *m*g = m.a

=> a = -  0.620*9.8 =  -6.076

substituting the value of  a, and other values in equation  1

=> v= 19.8 +(-6.076)*1.32 = 11.77 m/s

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Momentum is a product of the mass and velocity of particles in motion while impulse is the rate of change of the momentum of particles/objects when a force acts on the object.

The impulse of the collision in system A is twice the impulse of the collision in system B

Impulse is given as J = F.dt

In case of impulse 1,

it is F(1-0.5) = 4* 0.5 = 2 Ns

In case of impulse 2,

it is = 2(2.5 - 1.5) = 2Ns

We saw that, both the impulses are calculated to be 2Ns.

Therefore, both the impulses in the graph are same.

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Answer:

Explanation: I kinda think soo

We will have that the flux density will be:

Answer:

If it is a true mixture, the mixing enthalpy is negligible, and there is no reaction or phase change, then you can do this using exclusively the temperatures of the individual compounds and their heat capacities. Any other process that takes place needs to be taken into account separately.

The solution can be found by understanding that we’re only using state variables. You can design any complicated process that starts with the starting situation and ends up at the ending situation, and the state variables will be the same. And sometimes a complicated process is easier to calculate than the simple one-step process, like here when mixing multiple components.

One way that will work is to start by bringing all compounds to the lowest temperature of either of the compounds. All but one of the compounds must be cooled down for this; make sure to calculate for each of the components how much energy is released. Now, mix all the components together. In the simplest situation sketched above you can calculate the heat capacity of the mixture by adding all the heat capacities of the components. Use this total heat capacity to calculate how much you can heat up the mixture using the energy you saved in cooling down the components earlier. This will be your desired end situation.

In case there are any phase changes or other processes in between, you need to take the energy needed for those into account too but in very similar ways.

Answer:

flujo de energia

Explanation:

Answer:

8.36e2

Explanation:

Use a scientific calculator

Its notation is written as :

8.36 x 10^2

Dolasetron (anzemet) is an antiemetic for a nauseous 7 weekold 4 kg pitbull puppy named "Spot" will be given a dose of 2.4 mg of dolasetron (anzemet).

To calculate the dose of dolasetron for "Spot," we multiply the weight of the puppy (4 kg) by the dose per kilogram (0.6 mg/kg). This gives us 2.4 mg. Therefore, "Spot" will be given a dose of 2.4 mg of dolasetron.
To calculate the volume in milliliters (ml) needed for this dose, we need to consider the concentration of dolasetron, which is 20 mg/ml. Since we have 2.4 mg of dolasetron, we divide this by the concentration to obtain the volume. Therefore, "Spot" will be given a dose of 0.12 ml of dolasetron.
In summary, "Spot" will be given a dose of 2.4 mg and the corresponding volume is 0.12 ml of dolasetron.

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d)A solar cell is an object that converts light into chemical energy.

It works by using sunlight to convert photons into electrons, which are then used to generate electricity. Solar cells can be used to power a variety of objects, such as calculators, phones, and other electronic devices. They can also be used to generate electricity for homes and businesses. Solar cells are made of special materials that allow them to capture light and convert it into energy. When sunlight hits the solar cell, electrons in the material become excited and move freely, creating an electric current. This current is then used to produce electricity.

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Answer:

P₁ = 1.0 atm

V₁ = 35 L

P₂ = 0.75 atm

Formula:

P₁V₁ = P₂V₂

Solution:

P₁V₁ = P₂V₂

V₂ = P₁V₁ / P₂

V₂ = (1.0 atm)(35 L) / 0.75 atm

V₂ = 47 L

Final Answer:

V₂ = 47 L

Answer:drfdcfrfvgtgy6hbhhbhyg vcfrfr5tgvcfrtg vcdftghegthetrgbdgtthethe3thet

Explanation:

Sdwerftyrujtnyhbvcrdefgswthyujdehrtgfyhrjfuygtdhjueyrtgehwu3y4tgrehjwheyrgdhbnsjhfgvbdnhgfdhjsdehbrvbdensdvfgreyhsdgrftyhedggrfdhsgfv

Answer:

See below

Explanation:

Assuming no resistance

DISTANCE =  1/2 a t^2

443 = 1/2 (9.81)t^2      Shows t = 9.5 seconds

The rubber is stretched and firmly gripped by the nail due to the pressure inside the tire, which prevents air leakage.

The force of all gas particle/wall collisions divided by the surface area of the wall is the definition of pressure (P): One of the fundamental measurable quantities of this phase of matter, pressure is a property shared by all gases. The amount of force applied to a given area is referred to as pressure.

For instance, the weight of the snow divided by the area of the roof would represent the pressure from snow on a roof. Gases are typically where pressure in chemistry comes from. Gas is added to a balloon before it is inflated. Gas molecules collide with one another and the balloon's walls.

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The amount of energy radiated by a star is directly proportional to its surface area and the fourth power of its temperature. Therefore, the more luminous star radiates 81 times more energy than the less luminous star.

If two stars have the same surface area but one has 3 times the temperature of the other, we can calculate the ratio of the energy radiated by the more luminous star compared to the less luminous star.

Let's assume the surface area of both stars is A. The energy radiated by the less luminous star can be represented as E1, and the energy radiated by the more luminous star can be represented as E2.

Since both stars have the same surface area, we can say that \(E1 ∝ T1^4\) and\(E2 ∝ T2^4\), where T1 is the temperature of the less luminous star and T2 is the temperature of the more luminous star.

Given that T2 = 3T1, we can substitute this value into the equations:

\(E1 ∝ T1^4\)
\(E2 ∝ (3T1)^4\)

Simplifying, we get:
\(E1 ∝ T1^4\)
\(E2 ∝ 81T1^4\)

Therefore, the more luminous star radiates 81 times more energy than the less luminous star.

In conclusion, if two stars have the same surface area but one has 3 times the temperature of the other, the more luminous star will radiate 81 times more energy than the less luminous star.

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Answer:

a region around a magnetic material or a moving electric charge within which the force of magnetism acts.

Explanation:

The definition of a magnetic field is a place in space near a magnet or an electric current where a physical field is created from a moving electric charge that creates a force on another moving electric charge. An example of a magnetic field is the Earth's magnetic field.

The form of energy stored in a stretched spring is elastic potential energy. When a spring is stretched or compressed, it possesses potential energy due to the deformation of its structure.

This potential energy is called elastic potential energy because it is associated with the elasticity of the spring.

As the spring is stretched, work is done to overcome the forces within the spring that resist the change in its length. This work is converted into potential energy, which is stored in the spring. The amount of potential energy stored in the spring is directly proportional to the amount by which it is stretched or compressed.

When two forces are simultaneously applied to a spring in opposite directions, it may result in elongation or contraction of the spring, depending on the magnitude and direction of the forces. If the applied forces are strong enough to overcome the spring's elasticity, the spring will undergo deformation and exhibit elongation or contraction. This deformation is a manifestation of the stored elastic potential energy being converted into mechanical energy.

Shear, bending, and intermolecular binding energy are not directly related to the stretching of a spring.

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A symphony is a protracted orchestral piece that often consists of multiple significant sections or movements, at least one of which uses the sonata form also called first-movement form.

"Chamber orchestras" are the smallest orchestra types. It has a maximum of 50 members in total. The "sinfonietta" is the next size up and can have up to about 75 players. There are between 80 and 100 musicians in a full "symphony" or "philharmonic" ensemble.

Composition forms include symphony, sonata, piano quintet, and concerto. Many of these forms were used by classical music composers, and frequently, a single composer used a certain form multiple times.

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Answer:

D. All of the above

Explanation:

Answer: 180m/s

Explanation:

use formula

velocity = displacement /time

12=d/15
=180m/s