When using a liquid as a solvent, what could be the state(s) of matter of the solute?

Yes they do. So if you need to add or subtract a pair, then you have to first change one or the other so that they both have the same power of 10.

Answer:

B C & D

Explanation:

should make you money, time well spent no time lost.

Answer:

B and C

Explanation: i looked at the test and i got it right

The blueness of the daytime sky is due mostly to light scattering.

The Earth's atmosphere is composed of particles such as nitrogen and oxygen molecules, which scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why the sky appears blue to us during the day. At sunrise and sunset, the light has to pass through more of the atmosphere to reach us, and the blue light is scattered out, giving the sky a reddish or orange hue.

During the daytime, light scattering is the phenomenon that causes the blue color of the sky. When sunlight enters the Earth's atmosphere, it interacts with the gas molecules, particularly nitrogen and oxygen. These molecules are much smaller than the wavelength of visible light, and so they scatter the light in all directions.

However, blue light has a shorter wavelength and higher energy than other colors, such as red and orange. When blue light interacts with the gas molecules, it is scattered much more than the other colors. As a result, the blue light is scattered in all directions, creating a blue sky that we see during the day.

The reason why the sky is not always blue is that the amount of scattering depends on the number of gas molecules in the atmosphere. During sunrise or sunset, when the sun is near the horizon, the light has to travel through more of the Earth's atmosphere to reach our eyes. This means that more of the blue light is scattered away, and the remaining light appears to be reddish or orange.

In summary, light scattering during the daytime is the process by which the gas molecules in the Earth's atmosphere scatter sunlight in all directions, with blue light being scattered more than other colors, resulting in the blue color of the sky.

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Answer:

solid to gas or gas to liquid

Explanation:

welcome

Answer:

solid to gas or gas to liquid

Explanation:

Edge

Answer:

The length of the arrow tells you the size of the quantity in the vector diagram.

The direction of the arrow simply tells you the direction

Answer and Explanation:

A vector in this sense is a thing that has both magnitude (length) and direction.

Say you're walking at a speed of 5 miles per hour. If you keep walking in a straight line, then in two hours you will have walked 10 miles.

This doesn't give any information about where you started or any information about where you ended up after those 2 hours.

This is because "speed" is a scalar. It's a number with no associated geometry. It's just a magnitude. It's the magnitude of velocity.

Velocity is a vector.

Look on a map at where you are right now. Call that the center of the circle. Draw the circle with a 10 mile radius around where you are now.

The length of the arrow represents all of the possible places you could be after a two hour walk.

Which direction the arrow was pointing is what allows your friends to meet you there without checking along a ~63 mile path to find you or searching ~314 square miles to find you if you slowed down or stopped off along the way.

Answer:

Three laws

Explanation:

Three laws of motion that Newtown developed.

The acceleration is equal to the acceleration of gravity multiplied by the sine of the angle for a frictionless incline of degree.

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To find the inductance of the inductor, we can use the formula:Vpeak = L × ω × Ipeak the peak current at 86 MHz with a constant voltage of 3.7 V is 66.6 µA.

Voltage, also known as electric potential difference, is the measure of the difference in electric potential energy between two points in an electric circuit. It is the driving force that pushes electric charge through a circuit. Voltage is measured in volts (V) and is typically represented by the symbol "V".

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"ECG is an equipment which measure the electrical impulses." Correct option is C.

These electrical impulses are captured by an ECG to provide information about the heart's rate, rhythm, and the intensity and timing of the electrical impulses as they pass through the various heart chambers. EKG variations can indicate a variety of heart-related diseases.

An electrocardiogram (ECG) is a quick examination that can be used to examine the electrical activity and rhythm of your heart. The electrical signals that your heart beats out each time it beats are picked up by sensors that are affixed to your flesh.

Electrocardiography involves attaching tiny, sticky electrodes to the arms, chest, and thighs. These electrodes are wired up to the ECG device so that it can identify the electrical impulses that are sent during each heartbeat.

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Answer:

0.375 N

Explanation:

1250 * 3 mm^2 =0.375 N

The element (A) F (fluorine) doesn't have similar chemical properties to neon (Ne).

The noble gases comprise a group of the periodic table, consisting of six chemical elements: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The noble gases are the chemical elements that are the least reactive.

They are the lightest and have the smallest atomic radii of any element in their respective periods. Their non-reactivity makes them very useful in a wide range of applications. They are used in lighting, cryogenics, as pressurized gases for spacecraft propulsion, and in the semiconductor industry. The noble gases are located in the last column of the periodic table. The number of electrons in their outermost shell (the valence shell) is the same as the group number.

For example, helium and neon have two valence electrons, and argon has eight. Fluorine, represented by F on the periodic table, is a chemical element with the atomic number 9. It is the lightest halogen and exists as a highly toxic pale yellow diatomic gas at standard conditions. As a member of the halogen group, it is a highly reactive element. Therefore, the option (A) F (fluorine) is not a noble gas and doesn't have similar chemical properties to neon (Ne).

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Answer:

100 mph

Explanation:

speed=distance/time

Answer:

(C)  all bodies

F = G M1 M2 / R^2     all bodies (M1 and M2)  are gravitationally connected

Answer:

an hour and 30 minutes i believe.

Explanation:

Answer:

a hours and 30 mins

Explanation:

The control in the experiment is option B. The group that is given no shock.

The method utilized by the researcher in scientific study to reduce the impact of unimportant factors is known as experimental control. The power of the independent variable to alter the dependent variable is further strengthened by experimental control. 9 Nov 2021

A controlled experiment is a scientific test carried out under predetermined circumstances in which only one (or a small number of) variables are altered at a time while all other variables are maintained constant.

Researchers use experimental controls to reduce the impact of unrelated experience and environmental factors, as well as to strengthen the conclusion that changes in the dependent variable are caused by the independent variable (the ability to infer causality).

Hence, option B is correct as it is not receiving any special treatment in the experiment.

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Answer:

5 metre.

Explanation:

Wavelength = Velocity / Frequency

= 23,000/ 4,500

= 5 metre.

Let's first resolve the two forces into their components as shown in the diagram below: The larger force (617 N) makes an angle of 46° with the horizontal axis.

Therefore, the horizontal component will be given by:

H = 617 cos 46°H = 617 × 0.69H = 425.73 N

The vertical component will be given by:V = 617 sin 46°V = 617 × 0.73V = 450.66 NOn the other hand, the smaller force (411 N) makes an angle of (90° - 46°) = 44° with the horizontal axis. Therefore, the horizontal component will be given by:H = 411 cos 44°H = 411 × 0.72H

= 296.52 N

The vertical component will be given by:V = 411 sin 44°V = 411 × 0.67V = 274.47 N The resultant horizontal component, R will be given by:R = 425.73 + 296.52R = 722.25 N The resultant vertical component, R will be given by:R = 450.66 + 274.47R = 725.13 N The magnitude of the resultant, R will be given by:R² = (722.25)² + (725.13)²R = √(522198.06)R = 722.82 N The angle that R makes with the larger force (617 N) will be given by:θ = tan⁻¹(725.13/722.25)θ = 45.23° Therefore, the magnitude of the resultant is 722.82 N and it makes an angle of 45.23° with the larger force.

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About 4.5 billion years ago, a dense cloud of interstellar gas and dust gave rise to our solar system. The supernova shockwave from a nearby exploding star, or supernova, may have caused the cloud to collapse.

Within the initial 10 million years of the solar system's formation, Jupiter and Saturn are assumed to have formed first and fast. Rocky planets start to develop in the warmer, star-closer regions of the disk. There isn't much gas left for the terrestrial planets to accrete after the formation of the icy giants.

Let's, therefore, travel back in time more than 4.6 billion years to the time before Earth, Sun, and even Solar System existed. We were surrounded by gas and dust, most likely in one of the spiral arms. Do you want to know how it appeared? Your favorite Hubble Space Telescope images should be helpful.

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Our solar system was created from a massive cloud of interstellar gas and dust some 4.5 billion years ago. The collapse of the cloud may have been triggered by the supernova boom from a nearby exploding star.

Jupiter and Saturn are believed to have formed initially and quickly during the first 10 million years of the solar system's creation. In the warmer, star-closer parts of the disc, rocky planets begin to form. After the development of the icy giants, there is not much gas left for the terrestrial planets to accrete. Therefore, let's go back in time more than 4.6 billion years to the period before the Earth, Sun, and even the Solar System were created. Dust and gas were all around us called supernova.

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Answer:

the answer is C

Explanation:

because the moon has to be in front of the sun hope this helps

Explanation:

may be (C) is the correct answer .

Answer:

Wow this I very simple actually, but its hard if you don't know how to do it like me

At time t1=2.0 s, the 3 kg block is moving at a speed of 4.0 m/s.

a group of connected parts arranged to transmit force or change force in order to carry out beneficial task. Also known as a basic machine. a mechanism, especially a lever, screw, wedge, or pulley, for changing the strength or direction of a force.

Machines are typically defined as devices that modify the speed of a motion or convert it from one type of motion to another utilizing gears, pulleys, belts, shafts, cams, or cranks.

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Answer:

left to right

Explanation

1. illonois

2. texas

3. Maine

4. Arizona

45oN 100oW

35oN 90oW

Answer:

32.77 W/cm²

Explanation:

When unpolarized light passes through a single polarizer, the intensity is reduced to half of the incident intensity.

Since the second polarizer is removed, we now have only two polarizers in the stack, with their polarizing axes at an angle of 62.0° - 27.0° = 35.0° with respect to each other.

To find the intensity of the light after passing through the two remaining polarizers, follow these steps:

1. The unpolarized light passes through the first polarizer, reducing its intensity to half. So, the intensity after the first polarizer is (1/2) * 80.0 W/cm² = 40.0 W/cm².

2. The polarized light then passes through the third polarizer, whose axis is at an angle of 35.0° to the first polarizer's axis. The intensity after passing through the third polarizer can be found using Malus's Law:

 I_out = I_in * cos²(θ)
 
  where I_out is the output intensity, I_in is the input intensity, and θ is the angle between the polarizing axes.

3. Apply Malus's Law:

  I_out = 40.0 W/cm² * cos²(35.0°)
  I_out ≈ 40.0 W/cm² * 0.8192
  I_out ≈ 32.77 W/cm²

So, the intensity of the light after passing through the modified stack (with the second polarizer removed) is approximately 32.77 W/cm².

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Two object experiencing force between them the strength of the force increases as the mass increases , and decreases as the distance increases.

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

The gravitational constant, denoted by the capital letter G, is an empirical physical constant involved in the calculation of gravitational effects in Sir Isaac Newton's law of universal gravitation and in Albert Einstein's theory of general relativity.

f = Gmm/r²

Two object experiencing force between them the strength of the force increases as the mass increases , and decreases as the distance increases.

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If a metal ball is suspended by a rod , the forces acting on the system are balanced so there is no motion observed in the system and this is because of the upward tension in the rod .

Option 1 says : the tension in the rod

The gravitational pull that is acting downwards direction and the tension in rod that is acting in a anti parallel direction to the gravitational pull . being on the same line of action and in opposite directions , these forces cancels each other out .

Option 2 says : the friction of rod

Friction acts in cases of contact forces like a drag or pull not in cases of non-contact forces like gravity , thus friction can't balance it .

Option 3 says : the electromagnetic force

There are no charges or magnets present in the system so the electromagnetic force is absent in this case Thus they cant balance the gravitational force.

Option 4 says : the strong force around the rod

The strong force around is not on the line of action of the gravitational pull so it cant balance it.

So out of all the forces only the tension present in the rod is able to balance the gravitational force

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Hard glass is a type of glass characterized by its high resistance to thermal and mechanical stress. It is commonly used in scientific and industrial applications. The components of glass can be classified into formers, intermediates, and modifiers.

Hard glass, also known as borosilicate glass, is a type of glass that possesses high resistance to thermal expansion and mechanical stress. It is composed mainly of silica (SiO2) and boron oxide (B2O3), which act as formers in the glass structure. The formers provide the basic framework of the glass and contribute to its high durability and thermal stability.

In addition to formers, glass can also contain intermediates and modifiers. Intermediates, such as alumina (Al2O3) and magnesia (MgO), help in reducing the melting point of the glass and improve its workability during the manufacturing process. Modifiers, such as sodium oxide (Na2O) and calcium oxide (CaO), alter the properties of the glass, such as its refractive index and chemical resistance.

By combining the right proportions of these components, glassmakers can produce glass with specific characteristics suitable for various applications, ranging from laboratory equipment and optical lenses to household items and industrial containers.

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The statement that illustrates how progress in engineering has affected the natural environment is extracting mineral resources with modern mining equipment removes fertile topsoil.

The natural environment may be defined as anything that can be present in the surroundings of living entities whether it is a biotic or abiotic factor.

The utilization of contemporary mining tools terminates fertile topsoil and admiringly impacts the fertility of the soil.  It is tough to rebuild topsoil and modern mining tools constantly damage soil fertility.

Advancement in engineering has influenced the natural environment and mining is one of the most accepted measures of this.

The complete question is as follows:

Therefore, it is well described above.

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The electric field strength inside the capacitor does not depend on the distance between plates. Hence, Potential difference and Electric field strength is  -234V and -1.8 x 10^5 V/m respectively.

The ability of electrical fields to pass through a conventional vacuum is represented by the physical constant known as the permittivity of free space. The constant has a relative standard uncertainty of 1.5 x 10-10 and is equal to around 8.854 x 10-12 F/m (farad per metre).

Q= charge =>  ± 0.708 nC

E => electric field strength = Q/Aεο

A=> area of plates 2.10x 2.10 cm2.

εο = > 8.854 x 10-12 F/m.

E= -0.708 x10^-9/ (2.1 x 2.1 x 8.854 x 10^-4 x 10^-12)

 =  -1.8 x 10^5 V/m.

Potential difference = Ed => -1.8 x 10^5 x 1.3 x 10^-3 => -2.34 x 10^2V

                             => -234V.

The intensity of an electric field at a specific location is expressed quantitatively as "electric field strength." The volt per metre (V/m or Vm-1) is the common unit.

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Following Greek customs of direct democracy and majority rule when passing legislation, the Mayflower Compact of 1620 served as the Massachusetts colony's constitution. The House of Burgesses had an impact on the founding fathers' decision to create a representative form of government where members gathered to discuss topics, adopt laws, and pass taxes.

To help organise and rule the populace, they all passed laws.

Because the Mayflower Compact was the first document to establish self-government in the New World, it was significant. Up until Plymouth Colony joined Massachusetts Bay Colony in 1691, it was still in operation.

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