Ki is making lemonade using a lemonade powder mix. Which scientific property of water is demonstrated by the lemonade powder dissolving into water, making lemonade?
A. Solubility
B. Cohesion
C.Adhesion
D. Capillary Action

Answer:

this may not help but :)))

Explanation:

Anatomy deals with the body's structure, different parts like cells, tissues, organs and organ system, etc. Physiology deals with the working of the body's part and their specific roles. ... The understanding of the physiology of a living organism is essential to know the function of every organ of the body.

Answer:

Explanation:

For every action (or force), there is an equal and opposite action (or force).

Explanation: Well, If you arrive in my class 45 seconds after leaving math, which is 90 meters away. you traveled 2m/s ( I hope this helped <3)

Answer:

It allows them to write better and more comprehensible research papers. As well as being able to communicate the relevance and impact of their ideas and discoveries.

Explanation:

The total mechanical energy of the bicyclist is 1400 J, obtained by adding her potential energy of 720 J and kinetic energy of 680 J. The correct answer is option B.

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Answer:

The correct answer is option A: they are isotopes.

Explanation:

From atom X we know that the number of protons is 7 and the number of neutrons is 7 and from atom Z we know that the number of protons is 7 and the number of neutrons is 8.

Since the number of protons of atom X and atom Z is the same, we have that atom X and atom Z is the same element. The difference in the number of neutrons tells us that atom X and atom Z are isotopes. Remember that an isotope is one element that has atoms with different numbers of neutrons.            

The mass number is given by:              

\( A = p + n \)

Where n is the number of neutrons and p is the number of protons.

For atom X and atom Z we have:

\( A_{x} = 7 + 7 = 14 \)

\( A_{z} = 7 + 8 = 15 \)

Hence, they have a different mass number.  

We know that the element with 7 protons is nitrogen. The first isotope is \(^{14}_{7}N\) and the second isotope is \(^{15}_{7}N\). Both isotopes are stables (they are not radioactive).  

Therefore, the correct answer is option A: they are isotopes.

I hope it helps you!                                                          

Answer:

I don't know sorry brother/sister

Explanation:

please mark as brilliant

Answer:

Explanation:

The car will fall with acceleration due to gravity which is equal to 9.8 m /s²

For downward fall ,

initial velocity u = o

acceleration due to gravity = g = 9.8 m /s

final velocity v = ?

displacement h = 5.2 m

v² = u² + 2 gh

v² = 0 + 2 x 9.8 x 5.2

= 101.92

v = 10.1 m /s

Answer: B.

Explanation:
Lakes and ponds are considered aquatic regions, as almost all life in them is marine.

No, the distance to a star cannot be determined strictly by the intensity of its radiation.

Stars emit radiation in the form of electromagnetic waves across the entire electromagnetic spectrum. This includes everything from radio waves, microwaves, and infrared radiation to visible light, ultraviolet radiation, X-rays, and gamma rays. The specific types and amounts of radiation emitted by a star depend on its temperature, size, age, and other properties.

Most of the radiation emitted by stars is in the form of visible light, which is what allows us to see them in the night sky. The colors of stars, ranging from red to blue, indicate their temperature, with cooler stars appearing redder and hotter stars appearing bluer.

In addition to visible light, stars also emit ultraviolet radiation, which can cause damage to living cells and is absorbed by the Earth's atmosphere. X-rays and gamma rays are also emitted by some stars, particularly those that are very hot or undergoing extreme nuclear reactions, and can only be detected with specialized telescopes.

The radiation emitted by stars plays an important role in shaping the universe, influencing the formation and evolution of galaxies, stars, and planets. It is also the source of energy that powers life on Earth, as it is ultimately responsible for driving photosynthesis in plants and other organisms.

Here in the Question,

The intensity of a star's radiation can provide valuable information about its properties, such as its luminosity and surface temperature, distance estimation requires additional measurements and calculations.

One way to determine the distance to a star is through the method of parallax. This involves observing the apparent shift in a star's position against the background of more distant stars as the Earth moves in its orbit around the Sun. The amount of shift is measured and used to calculate the star's distance.

Another method is the use of standard candles, which are objects of known intrinsic brightness, such as certain types of supernovae or Cepheid variable stars. By comparing the observed brightness of a standard candle with its known intrinsic brightness, astronomers can determine its distance based on the inverse square law of radiation, which states that the intensity of radiation decreases with the square of the distance.

Therefore, while the intensity of a star's radiation provides important information about its properties, it is not sufficient to determine the star's distance, which requires additional measurements and calculations.

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Answer:

The drawdown in a confined aquifer under transient conditions can be estimated using the Theis solution for the non-equilibrium radial flow of water. This solution is given by:

s = Q / (4πT) * W(u),

where s is the drawdown, Q is the pumping rate, T is the transmissivity, and W(u) is the well function (also called the Theis function) which depends on the variable u, where:

u = r²S / (4Tt),

where r is the distance from the pumping well and t is the time since pumping began.

Given T = 2500 m²/day, S = 1.0 x 10-3, and Q = 500 m³/day, we can calculate the drawdown at 10 m (r1 = 10 m) and 50 m (r2 = 50 m) for t = 150 days.

For (i) r1 = 10 m:

u1 = r1²S / (4Tt) = (10 m)² * 1.0 x 10-3 / (4 * 2500 m²/day * 150 days) = 0.000667

s1 = Q / (4πT) * W(u1) = 500 m³/day / (4π * 2500 m²/day) * W(0.000667).

For (ii) r2 = 50 m:

u2 = r2²S / (4Tt) = (50 m)² * 1.0 x 10-3 / (4 * 2500 m²/day * 150 days) = 0.01667

s2 = Q / (4πT) * W(u2) = 500 m³/day / (4π * 2500 m²/day) * W(0.01667).

Explanation:

Unfortunately, the well function W(u) cannot be evaluated directly without more specialized knowledge or tools. The well function is related to the exponential integral function, which requires numerical computation. You would typically use a table of values, a calculator with this function, or a computer program to evaluate it. After obtaining W(u), multiply it by the remaining fraction to find the drawdowns.

Answer:

120 Newtons

Explanation:

m = 20 kg

a = 6 m/s

F = ?

F = m x a

F = 20 x 6

F = 120 Newtons

Answer:

No, it is not necessary for them to have same mass.

Explanation:

Let both bodies have a density d1 and d2 respectively.

Since their volumes are equal V1 = V2

we know that, https://tex.z-dn.net/?f=%5Cfrac%7Bmass%7D%7Bvolume%7D

Hence, d1 =  and d2 =    

Taking the ratio of densities,we get

This implies that unless the bodies have same densities, the mass of the two bodies will not be same.

The acceleration required to increase the speed of a car from 24 mi/h to 52 mi/h in 5 seconds is 8.204ft/s2.

Acceleration is given by:

.

.

where,

Vf is the final speed of the car =52mi/h

vi is the initial speed of the car=24mi/h

Δt is the change in time =5 seconds

The constant acceleration required is:

.

.

pk

Therefore the constant acceleration required is

.

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A thermal energy transfer portfolio would be an excellent way for students to showcase their knowledge and understanding of this important scientific concept.

Thermal energy transfer is the energy transfer between two or more objects that have different temperatures. This energy transfer can take place in three different ways: conduction, convection, and radiation. A portfolio is a collection of documents or pieces of work that demonstrate a person's skills, abilities, and achievements in a particular area.

Therefore, a thermal energy transfer portfolio would be a collection of documents or pieces of work that demonstrate a person's skills, abilities, and achievements related to thermal energy transfer. This portfolio could include lab reports, experimental data, diagrams, and explanations of the various ways thermal energy can be transferred.

For example, a student's thermal energy transfer portfolio might include:

1. A lab report detailing an experiment they conducted to measure the rate of heat transfer through different materials using conduction.

2. A diagram showing the process of heat transfer through convection in a fluid, such as air or water.

3. A written explanation of the concept of radiation and how it relates to thermal energy transfer.

4. A spreadsheet of data showing the temperature changes in a system as heat is transferred through it.

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The age of the cloth material is obtained from the calculation as  1843 years .

We know that the half life of a radioactive isotope refers to the time that is taken for only half of the number of the original radioactive isotopes that are present to remain in the sample.

We can be able to obtain the age of the cloth by looking at the amount of the radioactive carbon -14 that is still left in the sample. How do we do that? We have to turn to a formula that says;

0.693/\(t_{\frac{1}{2} }\) = 2.303/tlog (Ao/A)

\(t_{\frac{1}{2} }\) = half life of the material

t = age of the material

Ao = amount initially present

A = Amount present at time t

Then we have;

0.693/5730 = 2.303/tlog (Ao/0.8Ao)

1.21 * 10^-4 = 0.223/t

t = 0.223/1.21 * 10^-4

t = 1843 years

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The primary medium through which the sound waves travel is

Air.

A wave is defined as a disturbance that travels through a

medium which transports energy from one place to another in

the process.

In a guitar, the vibration of the string sets the surrounding air

molecules into vibrational motion which thereby produces

sound heard.

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Answer:  An electronic circuit is an essential part of the device. It features many components connected together to inform the network. The electric circuits are closed-loops or paths which form a network of electrical components through which electrons flow. The flow of electrons through a circuit is known as electrical current and is measured in amperes. The path of the circuit is made using electrical wires and is powered by a source, like a battery.

Explanation:

Answer:

i took a screenshot of the answer

Explanation:

Hope this helps! :)

A property that can be observed without changing the identity of a substance is a Physical Property.

A physical property is a property that can be observed or measured without changing the composition of the substance. They are used to observe and describe matter. Texture, color, smell. Melting point, boiling point, density, solubility, polarity, electrical conductivity, ductility, ductility, luster, sound intensity, etc., are some examples of physical properties.

Physical properties are often characterized as strength and general properties. Intensive properties do not depend on the size or extent of the system, nor on the amount of matter in the object, while extensive properties exhibit an additive relationship. These classifications are generally valid only if the smaller subdivisions of the sample do not interact in a physical or chemical process when combined.

Goods can also be classified according to the meaning of their nature. For example, isotropic properties do not vary with viewing direction, while anisotropic properties have spatial variance.

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Answer: The energy incident on the solar panel during that day is \(9.24 \times 10^{7} J\).

Explanation:

Given: Mass = 250 kg

Initial temperature = \(16^{o}C\)

Final temperature = \(38^{o}C\)

Specific heat capacity = 4200 \(J/kg^{o}C\)

Formula used to calculate the energy is as follows.

\(q = m \times C \times (T_{2} - T_{1})\)

where,

q = heat energy

m = mass of substance

C = specific heat capacity

\(T_{1}\) = initial temperature

\(T_{2}\) = final temperature

Substitute the values into above formula as follows.

\(q = 250 kg \times 4200 J/kg^{o}C \times (38 - 16)^{o}C\\= 250 kg \times 4200 J/kg^{o}C \times 22^{o}C\)

As it is given that water absorbs 25% of the energy incident on the solar panel. Hence, energy incident on the solar panel can be calculated as follows.

\(\frac{25}{100} \times q = 250 kg \times 4200 J/kg^{o}C \times 22^{o}C\\q = 9.24 \times 10^{7} J\)

Thus, we can conclude that the energy incident on the solar panel during that day is \(9.24 \times 10^{7} J\).

Answer:

It's basically a lever which pivots around the sharp bend in the metal. This amplifies the force applied to the long arm.

Explanation:

it's a force magnifier

Answer:

5HZ

Explanation:

The frequency of a wave:

It is the number of wave crests  that pass a fixed point in one second. To find the frequency of the wave you observed, we divide velocity by wavelength as below.

frequency = velocity / wavelength

where velocity is the speed of the wave and wavelength is the distance between consecutive wave .

Since the wavelength of the wave is 2m and the velocity of the wave is 10 m/s, we can calculate the frequency of the wave as:

frequency = 10m/s / 2m = 5 Hz

Explanation:

1- El primer paso para calcular la fuerza del brazo en el punto medio de la excavadora para levantar la tierra, es averiguar dónde está el fulcro, que en este caso está en las manos.

2- El segundo paso es calcular el brazo de potencia, al que llamaremos Bp, y el brazo de resistencia, que estará representado por Br.

Si Bp es igual a la distancia de la potencia al fulcro, Bp = 60cm

y si Br es igual a la distancia desde la resistencia al fulcro, entonces

Br = 40 + 60 = 100cm

3- Ahora aplicamos la fórmula de la ley de la palanca. Nosotros

piden que se aplique la fuerza en manos de

en el medio, es decir, la potencia P. La fórmula sería:

Y en el tercer paso, aplicaremos la fórmula de la ley de la palanca, que es:

P = R x Br / Bp

P = 8 x 100/60

P = 13,33 Kgf

Entonces la respuesta final es:

P = 13,33 Kgf

Answer:

The answer is not B or D because they need light co2 and water to make their food so B and D are out. and unless someone is walking during winter to feed it. It will not be A so the answer is C.

Explanation:

Plants can use heat in the ground to make food in winters. Plants make food through photosynthesis, and photosynthesis takes place mostly in plant leaves, but when plants lose their leaves in the winter, they do not die. Thus, the correct option is B.

Photosynthesis is the process through which plants use the sunlight, which is trapped in the chlorophyll pigment present in the chloroplast of cells to convert water, and carbon dioxide to produce oxygen gas and energy in the form of sugar (carbohydrate).

Photosynthesis is the process in which energy transformation takes place. In this process, light energy from the sun is converted into chemical energy that is in the form of carbohydrate in the leaves of the plant.

Therefore, the correct option is B.

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The form of electromagnetic radiation with the longest wavelength according to the chart is radio waves, which have a wavelength of \(10^{5}\)meters. So, the correct answer is D. radio waves.

What is Wavelength?

Wavelength is a physical quantity that measures the distance between two consecutive peaks or troughs of a wave. It is usually denoted by the Greek letter lambda (λ) and is measured in units of length, such as meters (m), centimeters (cm), or nanometers (nm). In other words, wavelength is the distance over which a wave repeats itself.

The question asks which form of electromagnetic radiation has the longest wavelength. Based on the chart, the answer is D. radio waves. Radio waves have wavelengths of about 10 meters to \(10^{5}\) meters, which is much longer than the wavelengths of visible light, ultraviolet light, X-rays, and gamma rays. In fact, radio waves are about the same size as buildings, while gamma rays are about the same size as atomic nuclei.

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The statement that is false is "there are places on earth where all forces are absent." Forces, such as gravity, are always present on Earth.

All the given statements are true except the statement "there are places on earth where all forces are absent." is false.

Forces change the momentum of a body,forces always occur in equal and opposite pairs (Newton's third law), where there is no force, objects continue to move the way they were moving, and forces cause an acceleration to take place are all true statements about forces.

Newton's third law simply states that there is an equal and opposite reaction to every action. So, if object A exerts a force on object B, object B will exert an equal but opposite force on object A.

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