Can anyone solve this question PLEASE hurry❗️⚠️

Answer:

You first push in then when the syringe is full push the out

Explanation:

1. in

2. out

but u should watch a You-tube video just in case

I hoped this helped!

The mass of a full tank of fuel is 5,784 kilograms.

To calculate the mass of the fuel, we first need to convert the volume from gallons to liters. Since 1 gallon is approximately equal to 3.785 liters, the fuel tank's volume is

7,230 gallons × 3.785 liters/gallon ≈ 27,369.45 liters.

Next, we can calculate the mass of the fuel by multiplying the volume by the density. The density of aviation fuel is given as 0.80 kilograms per liter. Therefore, the mass of the fuel in the tank is

27,369.45 liters × 0.80 kilograms/liter ≈ 21,895.56 kilograms.

Hence, the mass of a full tank of fuel is approximately 21,895.56 kilograms.

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Answer:

D

Explanation:

light moves in a straight line (sorry if I'm wrong)

If a  student wants to draw a diagram to show the path of a light wave would be an arrow starting at the wave source and pointing away from it , therefore the correct answer is option D.

Science is the methodical, empirically-based pursuit and application of knowledge and understanding of the natural and social worlds.

A method of learning about the world is science. Science allows people to participate in the creation of new knowledge as well as use that knowledge to further their goals.

If a  student wants to draw a diagram to show the path of a light wave would be an arrow starting at the wave source and pointing away from it, therefore the correct answer is option D.

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Option A and F are correct. If the angle of the slope is increased, the change of gravitational potential energy between the two heights: (A) increases, and (F) depends only on the difference between the two heights.

Gravitational potential energy is determined by the height and mass of an object. When an object moves up or down a slope, the angle of the slope affects the height change between two points. Increasing the angle of the slope means that the object moves to a higher height in a shorter distance. As a result, the change in height increases, leading to an increase in gravitational potential energy. Therefore, option A is correct.

The change in gravitational potential energy between two heights depends on the difference in height and not on the path followed. It is independent of factors such as the length or shape of the slope. Hence, option F is also correct.

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Answer:

a & b

Explanation:

In the peak of summer, it hasn't rained in a week, and the plants are looking rough, so watering the plants for an hour is a good idea.

However, the next day, you come back to the garden, and the plants look in worse shape than they did previously, as if none of that water made it to the plant. Plants absorb water through their roots. The root system of a plant is responsible for drawing water and nutrients from the soil. A plant's root system must be able to absorb water quickly in order for the plant to grow and thrive. When the soil around the root system is dry, the roots will stop growing and will not be able to absorb water.

It may even start to die. Watering plants during the peak of summer is important because it will help keep the soil moist and prevent the roots from drying out. However, watering a plant too much can be harmful. If a plant is overwatered, the water may not be able to penetrate the soil and reach the roots. Instead, it may just sit on top of the soil, causing the roots to rot and die. This can cause the plant to wilt and die.To summarize, if the soil around the plant is too dry, the roots may not be able to absorb the water you gave them, causing the plant to look worse than before. Conversely, overwatering can also be harmful because the water may not be able to penetrate the soil and reach the roots, causing the roots to rot and die.

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Gases also expand when they are heated and contract when they are cooled. The molecules of a hot gas move faster than the molecules of a cold gas, so they hit each other harder and bounce harder off the sides of a container. This makes the molecules move farther apart and push the sides of a container outward.

An astronomical unit (AU) is approximately 149.6 million kilometers (93 million miles), representing the average distance between the Earth and the Sun.

represent distances within the Solar System. It is approximately equal to the average distance between the Earth and the Sun.The current accepted value for the length of an astronomical unit is approximately 149.6 million kilometers (93 million miles) or about 8.3 light minutes. This value provides a useful reference for measuring distances within our Solar System.The AU is frequently used to express distances between planets, asteroids, and other celestial bodies in our solar system.

For example, the average distance from the Sun to Earth is approximately 1 AU, while the average distance from the Sun to Mars is about 1.5 AU.

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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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The best data about the surface topography of Venus has come from various missions and instruments sent by different space agencies. The first spacecraft to provide information about Venus was NASA's Mariner 2, which made a flyby in 1962.

However, it was the Soviet Venera missions that provided the most detailed information about the planet's surface in the 1970s and 1980s. The Venera probes used radar to map the surface, revealing that Venus has vast volcanic plains, impact craters, and mountain ranges. Later missions, such as NASA's Magellan spacecraft in the 1990s, provided even more detailed maps of Venus' surface topography using advanced radar imaging techniques.

With these missions, scientists have been able to study the geology and morphology of Venus, including its thick atmosphere, which has made it difficult to observe the surface with visible light. Overall, the data collected from these missions has greatly improved our understanding of Venus and its unique topography.

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According to the Two Column Model of Air Pressure, the column of air becomes narrower when the air inside the column cools.

In the Two Column Model of Air Pressure, the atmosphere is represented by two vertical columns of air, one on either side of the equator. The column of air is influenced by temperature changes, among other factors. When the air inside the column cools, it becomes denser and contracts. This contraction causes the column of air to become narrower.

To understand this concept, let's consider an example. Imagine a column of air in the atmosphere that extends from the Earth's surface to the top of the atmosphere. If the air inside this column cools, let's say due to a cold front moving in, the molecules in the air slow down and come closer together. As a result, the column of air becomes narrower.

In conclusion, according to the Two Column Model of Air Pressure, the column of air becomes narrower when the air inside the column cools. This is because cooling causes the air to contract and the molecules to come closer together.

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NOCl is a polar molecule due to its trigonal pyramidal shape and polar covalent bond between nitrogen and chlorine.

NOCl (Nitrosyl chloride) is a polar particle because of its sub-atomic calculation and the extremity of its bonds. The particle has a three-sided pyramidal shape with a solitary sets of electrons on the nitrogen iota and a polar covalent connection between the nitrogen and chlorine molecules.

The electronegativity distinction among nitrogen and chlorine makes a dipole second in the NOCl particle, with the nitrogen iota conveying a fractional negative charge and the chlorine molecule conveying a halfway sure charge. This extremity permits NOCl to show intermolecular powers, for example, dipole associations and hydrogen holding.

As a polar particle, NOCl has a higher limit and is more dissolvable in polar solvents contrasted with nonpolar solvents. The extremity of NOCl makes it valuable in different modern applications like in the creation of colors and drugs.

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Explanation:

\(period = 2\pi \sqrt{ \frac{length}{g} } \)

\(3.65 \: s = 2\pi \sqrt{ \frac{(1.25 \: m)}{g} } \)

Squaring both sides and solving for g, we get

g = 3.70 m/s^2

which is close to what is expected (3.71 m/s^2).

1.  The dispersion angle can be calculated as follows:

The angle of refraction for red and violet light using Snell's Law. For red light:

sin(41.00°)/1.638 = sin(θ)/1, where θ is the angle of refraction.

Solving for θ, we get θ = 24.42°.

Similarly, for violet light:

sin(41.00°)/1.668 = sin(θ)/1,

solving for θ, we get θ = 24.07°.

The dispersion angle is then the difference between these two angles:

Δθ = θ_violet - θ_red = 24.07° - 24.42° = -0.35°.

Therefore, the dispersion angle is -0.35°.

2. Let w be the width of the beam at the bottom of the block, as measured along the bottom surface. Then, for red light:

sin(24.42°)/1 = sin(θ)/1.638,

solving for θ, we get θ = 16.68°.

Using the same approach for violet light, we get θ = 16.48°.

The width of the beam at the bottom of the block is then:

w = 13.5 cm × tan(16.68°) + 13.5 cm × tan(16.48°) = 6.69 cm.

Therefore, the width of the beam at the bottom of the block is approximately 6.69 cm.

3.  When the rainbow-colored beam emerges from the bottom of the block, the exiting rays of light are once again refracted at the air-glass interface, and they spread out further due to the dispersion of the glass.

Dispersion refers to the phenomenon of a wave or radiation being separated into its component frequencies as it passes through a medium. This occurs because different frequencies of the wave travel at different speeds through the medium, causing them to spread out and separate.

One common example of dispersion is the separation of white light into its constituent colors when it passes through a prism. The different colors of light are refracted differently, causing them to separate into a rainbow-like spectrum. Dispersion is also an important phenomenon in the study of materials, particularly in optics and acoustics. In materials, dispersion can result in the absorption or reflection of certain frequencies, affecting the overall properties of the material.

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At each end of a long bone is an expanded portion called an "epiphysis," which articulates (or forms a joint) with another bone.

An epiphysis is a rounded or flat surface located at the ends of a long bone and is covered by a layer of smooth articular cartilage. This cartilage provides a low-friction surface that allows for smooth and pain-free movement between the bones at the joint. The epiphysis is separated from the main shaft of the bone (the diaphysis) by the epiphyseal plate, a layer of hyaline cartilage that allows for growth in children and adolescents. The epiphysis and diaphysis are joined together by a strong and flexible tissue called the epiphyseal line, which eventually fuses in adulthood and forms a solid connection between the two parts of the bone. The epiphysis and diaphysis work together to provide strength, stability, and support to the bones of the skeleton, and the joints formed by the articulation of the epiphysis and another bone play a crucial role in enabling movements such as walking, jumping, and twisting.

In short, an epiphysis is an expanded portion at the end of a long bone that articulates with another bone to form a joint, and it plays an important role in the movement and stability of the skeleton.

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From the calculated de Broglie wavelength of 2.545 × 10⁻¹⁴ m, we can see that option (c) 2.8 × 10⁻¹³ m is the closest match to the required size aperture to observe diffraction effects for the given neutron's kinetic energy of 10 MeV.

To determine the size aperture necessary to observe diffraction effects for a neutron with a kinetic energy of 10 MeV, we can use the de Broglie wavelength. The de Broglie wavelength (λ) can be calculated using the following equation:

λ = h / p

where λ is the wavelength, h is the Planck constant (6.62607015 × 10⁻³⁴ J s), and p is the momentum of the neutron.

The momentum (p) of the neutron can be calculated using the equation:

p = √(2mE)

where m is the mass of the neutron (1.675 × 10⁻²⁷ kg) and E is its kinetic energy (10 MeV).

First, let's convert the kinetic energy from MeV to joules:

10 MeV = 10 × (1.602 × 10⁻²⁷) J

= 1.602 × 10⁻¹² J

Now, calculate the momentum (p):

p = √(2 × 1.675 × 10⁻²⁷ kg × 1.602 × 10⁻¹²J)

= 2.601 × 10⁻²⁰ kg·m/s

Finally, we can calculate the de Broglie wavelength (λ):

λ = (6.62607015 × 10⁻³⁴ J s) / (2.601 × 10⁻²⁰ kg·m/s)

= 2.545 × 10⁻¹⁴ m

From the calculated de Broglie wavelength of 2.545 × 10^-14 m, we can see that option (c) 2.8 × 10^-13 m is the closest match to the required size aperture to observe diffraction effects for the given neutron's kinetic energy of 10 MeV.

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Answer:

A. Neutrons have 0 Charge

Explanation

Neutrons have no charge for the same reason that plastics (and other insulators don't). They just don't.

"This isn't a great answer, but the thing with charge is that we don't really know what "charge" is. We know that certain "charged" objects will attract some objects, while repelling . We also know that other other "charged" objects will behave the same way, but when the two charged objects are brought together, they repell."

A good estimate of the current supplied by the cell phone battery is approximately 0.88 Amps.

To estimate the current supplied by the cell phone battery, we can use Ohm's Law, which states that current (I) is equal to the ratio of voltage (V) to resistance (R). In this case, the voltage supplied by the battery is given as 1.7 V and the transmission power is 1.5 W. Since power (P) is equal to the product of voltage and current (P = IV), we can rearrange the formula to solve for current: I = P/V. Plugging in the values, we get I = 1.5 W / 1.7 V = 0.88 A (rounded to two decimal places).

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Answer:

Friction force= 120 N

Explanation:

Answer:

E=mc△T

E=0.012(4200)(99-98)

E=50.4J

50.4 joules of heat is used

To store 2.70x10^-3 J of electrical energy, capacitance c3 in the network must be 2.67μF. This can be calculated using the formula for energy stored in a capacitor network.

A network of capacitors is a collection of capacitors wired into a circuit. The capacitors store electrical energy as an electric field between their plates when a voltage is applied across the network. The formula E = 1/2 * C * V2 may be used to determine the total energy held in a capacitor network, where E is the energy held, C is the network's total capacitance, and V is the applied voltage. The capacitances of c1, c2, and c4 in this instance are specified as 4.00 F, 4.00 F, and 8.00 F, respectively. It is possible to determine that the capacitance c3 has to be 2.67 F to store 2.70 x 10-3 J of electrical energy by rearranging the formula and inserting the numbers.

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Answer:

True

Explanation:

The momentum of the object won't change if it is left alone. However, if it is moved, the momentum will change. It depends on what you are talking about.

Answer:

Yes

Explanation:

Many scientists believe that the universe is expanding at an increasing rate. Scientists cannot explain how the universe is expanding at an increasing rate because by law of conservation of energy, there is only a finite amount of energy. Thus, scientists have called this new source of energy dark matter and it is all around the universe helping shape and form the universe.

a) The null and alternative hypotheses can be stated as follows:

H0: The mean body temperature of a healthy adult is 98.6 °F.

H1: The mean body temperature of a healthy adult is not 98.6 °F.

b) The appropriate significance level is given as 0.10, which corresponds to a 10% significance level.

c) To perform the hypothesis test, we can use the t-test since the population standard deviation is unknown. The test statistic can be calculated using the formula:

t = (sample mean - hypothesized mean) / (sample standard deviation / √n)

where the sample mean is 98.24 °F, the hypothesized mean is 98.6 °F, the sample standard deviation is 0.92 °F, and n is the sample size, which is 35 in this case.

Substituting these values into the formula, we get:

t = (98.24 - 98.6) / (0.92 / √35)

t = -0.36 / (0.92 / √35)

t = -0.36 / (0.92 / 5.92)

t ≈ -0.36 / 0.155

t ≈ -2.32 (rounded to two decimal places)

d) The test statistic is approximately -2.32.

e) To calculate the p-value, we need to determine the probability of obtaining a test statistic as extreme as -2.32 (in either tail) assuming the null hypothesis is true. Since we have a two-tailed test, we need to calculate the area under the t-distribution curve beyond -2.32 in the left tail and beyond 2.32 in the right tail.

Looking up the p-value corresponding to -2.32 (or the closest value) in the t-distribution table or using statistical software, we find that the p-value is approximately 0.0257.

Therefore, the p-value is approximately 0.0257 (rounded to four decimal places).

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Answer:

it is a type of energy with the formula of u=mgh

Explanation:

m means mass

g means gravitational field and

h means height

A spring of force constant 120 N/m acted up by a constant force of 240N. Then, the elastic potential energy stored in the spring is 240 Nm.

The elastic potential energy stored in the spring is formulated as follows

                                                 PE = ½kx²

Where PE is the elastic potential energy, x is the displacement of the spring from its equilibrium position, and k is the spring force constant.

In this question, the spring force constant is 120 N/m, and the constant force acting on the spring is 240 N. To find the spring displacement, we can use the formula:

F = kx

Where F is the force acting on the spring, x is the displacement, and k is the force constant,

So that:

F = kx

240 N = 120 N/m . x

x = 240 N/120 N/m

x = 2 m

Once x is known, then we can calculate the potential energy of the spring:

PE = ½kx²

PE = ½ (120) (2²)

PE = 60 x 40

PE = 240 Nm

So, the elastic potential energy stored in the spring is 240 Nm.

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Answer:

A block device is a computer data storage device that supports reading and (optionally) writing data in fixed-size blocks, sectors, or clusters. These blocks are generally 512 bytes or a multiple thereof in size

The correct option is B. The spectrum of a signal is the range of frequencies in the signal.

A spectrum (plural spectra or spectrums) is a condition that isn't restricted to a specific set of values but can vary, without gaps, across a continuum. The word became first used scientifically in optics to explain the rainbow of colors in visible light after passing via a prism. As clinical information of mild superior, it got here to apply to the whole electromagnetic spectrum. It thereby has become a mapping of a variety of magnitudes (wavelengths) to a range of traits, which are the perceived "shades of the rainbow" and different houses which correspond to wavelengths that lie outdoors of the visible light spectrum.

Spectrum has due to the fact that been implemented via analogy to topics outside optics. therefore, one would possibly communicate approximately the "spectrum of political opinion", the "spectrum of interest" of a drug, or the "autism spectrum". In these uses, values within a spectrum may not be associated with precisely quantifiable numbers or definitions. Such makes use of implying a wide variety of situations or behaviors grouped together and studied under an unmarried identity for ease of discussion. Nonscientific makes use of the time period spectrum is once in a while deceptive.

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Complete Question:

The spectrum of a signal is:

A. the lowest frequency value subtracted from the highest

B. the range of frequencies in the signal

C. all of the frequencies from 0 to the highest frequency used

D. the average of the highest frequency and the lowest

Answer:

Answer in explanation

Explanation:

What we want to do here is to basically put in words in the select pane that could actually beat complete the question.

The higher the distance between the effort and the function of a lever, the higher the force needed to complete the work.

The smaller the distance between the effort force and the fulcrum of a lever, the smaller the mechanical advantage , making the work easier

The potential drop (in volts) across resistor 3 is 12.8 volts.in a circuit that has resistors in series, the potential difference of the power supply is divided between the resistors according to their resistances. The voltage drop is equal to the current passing through

the resistor multiplied by its resistance, Ohm's law.The potential difference across resistors 1 and 2 is given as 3.2 volts and 3.0 volts, respectively. We need to calculate the potential difference across resistor 3, which is the third resistor in the series.To find the potential difference across resistor 3, we will use the voltage divider rule. The voltage divider rule states that the potential difference across a resistor in a series circuit is proportional to the resistance of the resistor compared to the total resistance of the circuit. That is:V3 = (R3/Rtotal) * VtotalWhere,V3 is the potential difference across resistor 3.R3 is the resistance of resistor 3.Rtotal is the total resistance of the circuit.Vtotal is the potential difference of the power supply .From Kirchhoff's laws, we know that the resistors in series add up to give the total resistance of the circuit. That is Rtotal = R1 + R2 + R3We can rewrite the voltage divider rule equation as:V3 = (R3/(R1 + R2 + R3)) * V total Since we are given the potential difference of the power supply, we need to find the total resistance of the circuit.

To find the total resistance of the circuit, we will use Ohm's law for series circuits. Ohm's law for series circuits states that the total resistance of the circuit is the sum of the individual resistances. That is:Rtotal = R1 + R2 + R3 = (Vtotal/I)where I is the current passing through the circuit.From the given information, we are not given the value of the current passing through the circuit. So, we cannot calculate the total resistance of the circuit. We are also not given the value of the resistance of the third resistor, R3. So, we cannot use the voltage divider rule to find the potential difference across resistor 3. We can only use the fact that the potential difference of the power supply, Vtotal is divided between the three resistors. So, the potential difference across resistor 3 is:Explanation:V3 = Vtotal - V1 - V2where V1 is the potential difference across resistor 1.V2 is the potential difference across resistor 2.Substituting the given values, we get:V3 = 19 V - 3.2 V - 3.0 V= 12.8 V  the potential difference across resistor 3 is 12.8 volts.

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