Question 3 of 5
The image shows a school of fish being located using sonar.
Which two measures are needed to calculate the distance between the fish
and the ship?
A. The number of sound waves emitted from the ship
B. The speed of sound waves
C. The amount of time it takes sound waves to travel to the fish and
back
D. The size of the ship

Answer:

they a giant ball of gases, so the answer is they have very large gas masses

Explanation:

Answer:

get G OA S S E d

Explanation:

d gasses are large

Answer:

B

Explanation:

Answer:

12

Explanation:

What is the total kinetic energy of a hoop of radius 1 m and mass 2 kg that rolls at an

angular velocity of 1 rad/s?

The electric potential difference (ΔV) is equal to the voltage (V) and is found to be v. The work (W) is equal to × 10–18 J, rounded to one decimal place.

The electric potential difference, or voltage, is a measure of the difference in electric potential between two points in an electric field. In this case, the value of ΔV is given as v. It represents the potential energy difference per unit charge between the two points.

The work done (W) in an electrical system is equal to the product of the charge (q) and the potential difference (ΔV). In this context, the work is given as × 10–18 J, rounded to one decimal place. This value indicates the amount of energy transferred when a charge of magnitude 1.602 × 10–19 C moves across the electric potential difference.

It's important to note that the context and specific details of the problem are missing, which may affect the interpretation and calculation of the electric potential difference and work. Therefore, additional information is required to provide a more accurate and complete answer.

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Answer:

When the Earth and sun are perfectly lined up, then it will happen. They can tell when it's going to happen.

Explanation:

This is why it only happens in some places. Some days it's not sunny out, so it's not going to happen.

A) Work involves force and distance while power involves force and velocity

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The claim can be Cosmetics, hygiene, and cleaning product emissions may be dangerous.

Evidence 1: Effect of Air Quality

Volatile organic compounds (VOCs), including formaldehyde, benzene, and toluene, can be found in a variety of cosmetic, hygiene, and cleaning goods. These VOCs have the potential to evaportate and cause indoor air pollution.

Environmental impact is evidence number two

Cosmetics, hygiene, and cleaning goods can have a detrimental environmental impact during manufacturing, usage, and disposal. Microplastics and certain chemicals are among the substances present in these items that may find their way into rivers and endanger aquatic life.

Evidence 3: Worker health effects

Occupational health risks can be present for workers who manufacture and produce hygiene, cleaning, and cosmetic items.

Reasoning: It is clear from the research that emissions from cosmetic, hygiene, and cleaning goods have the potential to be harmful.

Thus, this way, harmful are the emissions from cosmetics, hygiene, and cleaning products.

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Answer: c

Explanation: because if it increases then it gets hotter

if it decreases then its getting colder.

Answer: The number of neutrons

Explanation: trust me bro

Some chlorine atoms have an atomic mass of 37, while others have an

the atomic mass of 35.the difference between the two types of chlorine

atom is The number of neutrons, therefore the correct answer is option C

The total number of protons present in an atom is known as the atomic number of that atom. The atomic number has no correlation either with the number of neutrons or the number of electrons present inside an atom.

While the atomic mass of an atom is the sum of the total number of protons and the number of neutrons present inside of any atom.

Since there are chlorine atoms with an atomic mass of 37 and those with an atomic mass of 35. Option C is the appropriate response because the number of neutrons distinguishes between the two varieties of chlorine atoms.

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The energy efficiency of the mixer is 70%.

The Sankey diagram shows the amount of energy absorbed, the amount of useful energy, and the amount of non-useful energy.

The efficiency of a device

η = (U/I) × 100%

I = U + W

100% = U + 30%

U = 100% - 30%

U = 70%

The efficiency of the mixer

η = (U/I) × 100%

η = (70%/100%) × 100%

η = (7/10) × 100%

η = 70%

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Answer:

acceleration...............

Answer:

speed

Explanation:

wanna see some real speed betch

The motion being described is linear motion, and since it has direction, it is a vector quantity.

A linear motion is a style of motion in which the object's movement is inversely proportional to its speed and duration of motion.

This type of motion also happens in a straight line.

The following is the formula for final velocity in a linear type of motion:

v = u + at

where;

V is the object's final speed or moving rate.

u is an object's initial speed, and a represents its acceleration.

t is the object's motion in time.

Our equation is formed by the supplied statement as follows:

v = u + at

15 m/s = 10 m/s + 60a

Thus, the final velocity formula, which is a vector quantity, is shown by the equation above.

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Answer:

Derived units are derived from these 7 base units. Derived units are dependent on the base units and are not independent of each other. ... Mass has SI units of kg, distance is measured in m and t has the SI unit of second. Thus, SI unit of force is kg.

Answer:

it is the impact of a meteorite, volcanic activity, or an explosion.

Answer:

What is NUCLEAR POWER?

➡️ is the use of nuclear reactions to produce electricity.

➡️ it can be obtained from nuclear fission, nuclear decay and nuclear fusion reactions.

Hope it helps

Answer:

Rotational inertia depends both on an object's mass and how the mass is distributed relative to the axis of rotation. ... We can't just consider the mass to be concentrated at its center of mass. When a mass moves further from the axis of rotation it becomes more difficult to change the rotational velocity of the system.So the ball with 10 pounds of the ball can have more probability to do an absolute pure rotation along rolling translation.And also the specific material from which it is made up of. As If the body is rigid have the points dont move from their position when a magnitude of force applied then the body woukd perform a well rotation than a resistantant body.

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To determine the time a star with a right ascension of 6hr will transit, we can follow these steps:

1. Identify the right ascension of the star currently transiting (8hr) and the time of transit (5am).
2. Determine the difference in right ascension between the two stars (8hr - 6hr = 2hr).
3. Convert the difference in right ascension to a time difference (2hr x 4 minutes/degree x 15 degrees/hour = 120 minutes).
4. Calculate the transit time of the star with a right ascension of 6hr by subtracting the time difference from the given transit time (5am - 120 minutes = 3am).

So, a star with a right ascension of 6hr will transit at 3am.

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According to my research on how microscopes work, I can say that based on the information provided within the question as you move to a higher level of magnification on a microscope the following terms have the following effects

Resolution increases

Working Distance decreases

Amount of Light needed increases

Depth of Field decreases

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Stem cells is a population of cells that can be maintained for years.

Stem cells are undifferentiated cells that have the capacity to differentiate into a wide variety of body cells.

Here,

The only cells in your body that can differentiate into other cell types, including blood, bone, and muscle cells, are stem cells. They also fix tissue that has been harmed.

Stem cells are now important in the treatment of blood cancer and blood disorders. Stem cells may potentially be used to treat a wide range of other diseases, according to medical researchers.

Stem cells are highly valuable for ageing research since they are thought to be immortal in culture. Increased proteostasis, which regulates protein quality, governs this longevity.

An association between elevated proteostasis and the immortality of human embryonic stem cells was discovered by a study team.

Hence,

Stem cells is a population of cells that can be maintained for years.

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Answer:

Would it be starting point?

Explanation:

When you start a sport or something, you may not be good or bad at it. However, as time goes on you are going to improve.

Idk if this helps or not buh yeah

The magnetic field will not be produced by the a) stationary electric charge.

A moving charge will always produce a magnetic field, and on the other hand, static charge no longer produces a magnetic field due to the fact it affects both the electric and magnetic field, additionally not able to offer any impact on the magnet. That's the reason a static charge doesn't produce a magnetic field.

But the moving electric charge, electric current, electro-magnet, and current-carrying solenoid will produce the magnetic field along the movement the charges in their system where the magnetic field will flow along the axis.

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Answer:

Thermal energy is an example of kinetic energy, as it is due to the motion of particles, with motion being the key. Thermal energy results in an object or a system having a temperature that can be measured. Thermal energy can be transferred from one object or system to another in the form of heat.

Explanation:

Answer:

Thermal energy is an example of kinetic energy, as it is due to the motion of particles, with motion being the key. Thermal energy results in an object or a system having a temperature that can be measured. Thermal energy can be transferred from one object or system to another in the form of heat.

Explanation:

Air travels faster over the crests than the throughs because of this factor in bernoulli's principle contributes to the increased height.

That is the tenet of Bernoulli. The combined mechanical energy of a moving fluid, which consists of the gravitational potential energy of elevation, the energy related to fluid pressure, and the kinetic energy of fluid motion, remains constant. The wind is typically partially blocked by the wave troughs, which allows air to go over them faster and maintain a lower pressure than below. The idea that water accelerates up as pressure decreases and slows down as pressure increases comes from Bernoulli's principle. The same scenario plays out here, so the higher pressure in the troughs drives water into even higher Crests.The idea of energy conservation can be used to derive Bernoulli's principle. This asserts that in a steady flow, the total amount of energy present in a fluid will be constant at all places along the streamline.

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As Jeremy begins to push the box, if the force applied by Jeremy is greater that than the static frictional force, the box will move in the direction of the force applied by Jeremy.

According to Newton's second law of motion, the force applied to an object is directly proportional to the product of mass and acceleration of the object.

In other words, when the force applied to an object overcomes the frictional force between the object and the horizontal surface, the object will accelerate in the direction of the applied force.

Consequently, as Jeremy begins to push the box, if the force applied by Jeremy is greater that than the static frictional force, the box will move in the direction of the force applied by Jeremy.

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Answer:

a

 \(a = 21.7 \ m/s^2\)

b

\(F = 108.5 \ N\)  

Explanation:

From the question we told that

   The mass is  m  =  5 kg

    The initial speed \(u = 5 m/s\)

    The time taken to attain \(v = 70 \ m/s\) is  t =  3 s

Generally from kinematic equation we have that

     \(v = u + at\)

=> \(70 = 5 + a * 3\)

=>  \(a = 21.7 \ m/s^2\)

Generally  the force acting is mathematically represented

        \(F = m * a\)

=>      \(F = 5 * 21.7\)  

=>      \(F = 108.5 \ N\)  

In the late 19th century, studies of spectral lines and certain other phenomena were conducted, which helped in the development of quantum mechanics. The Bohr Model of the atom was the first atomic model to describe the atom's internal structure. It became clear, however, that the Bohr model was only successful for atoms with one electron, such as hydrogen. Atoms with more than one electron were more difficult to explain with this model.

Therefore, it became necessary to come up with a new model of the atom that could explain atoms with more than one electron. The quantum-mechanical model of the atom became necessary to overcome the limitations of the classical physics. According to classical mechanics, electrons should release electromagnetic radiation as they move in their orbits, which causes their orbit to collapse and the electrons to spiral into the nucleus. This theory was unable to explain the stability of atoms with more than one electron. As a result, the quantum-mechanical model of the atom was developed to overcome this limitation. The quantum-mechanical model is a model of the atom that combines quantum mechanics with classical mechanics.

In the quantum-mechanical model of the atom, electrons are not assumed to move in specific orbits. Rather, they move in orbitals, which are regions of probability where electrons are likely to be found. The quantum-mechanical model is a more accurate representation of the behavior of electrons in atoms. This is because it takes into account the wave-like properties of electrons, which classical mechanics does not. The quantum-mechanical model of the atom is essential for our understanding of chemical bonding. Chemical bonding is the process by which atoms combine to form molecules. The properties of a molecule depend on the arrangement of its atoms and the arrangement of electrons around the atoms.

The quantum-mechanical model allows us to predict the arrangement of electrons in molecules, which is essential for understanding chemical bonding. In conclusion, the quantum-mechanical model of the atom became necessary because the classical mechanics were unable to explain the behavior of electrons in atoms with more than one electron. The quantum-mechanical model is more accurate than the classical mechanics and has become essential to our understanding of chemical bonding.

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Explanation:

9.

Given parameters:

     Net force on object  = 200N

      Acceleration  = 500m/s²

Unknown:

Mass of the object = ?

Solution:

According to newton's second law of motion, force is the product of mass and acceleration;

      force  = mass x acceleration

Insert the parameters and solve;

         200  = mass x 500

             mass  = \(\frac{200}{500}\)   = 0.4kg

10:

Given parameters:

           Mass of dummy = 75kg

             Net force on dummy  = 825N

Unknown:

Dummy's deceleration = ?

 Solution:

Deceleration is the negative form of acceleration;

    Force  = mass x acceleration

       Acceleration  = \(\frac{force }{mass}\)  

       Acceleration  = \(\frac{825}{75}\) = 11m/s²

The deceleration is -11m/s²

The average power per unit area of an electromagnetic wave can be calculated using the formula P = (1/2)ε₀cE².

The average power per unit area of an electromagnetic (EM) wave can be calculated using the formula P = (1/2)ε₀cE², where P is the power, ε₀ is the electric constant (8.85 x 10⁻¹² F/m), c is the speed of light (3 x 10⁸m/s), and E is the electric field strength. Plugging in the values, we get P = (1/2)(8.85 x 10⁻¹²)(3 x 10⁸)(1 V/m)² = 1.33 x 10⁻⁹ W/m². Therefore, the average power per unit area of an EM wave is 1.33 x 10⁻⁹ W/m².

The average power per unit area of an electromagnetic wave can be determined using the formula P = (1/2)ε₀cE², where P is the power, ε₀ is the electric constant, c is the speed of light, and E is the electric field strength. Plugging in the values, we get an average power per unit area of 1.33 x 10⁻⁹ W/m². This value represents the energy transmitted by the wave over a given area. It is important to note that this value may vary depending on the frequency and amplitude of the wave.

In conclusion, the average power per unit area of an electromagnetic wave can be calculated using the formula P = (1/2)ε₀cE². Using this formula, we determined that the average power per unit area of an EM wave is 1.33 x 10⁻⁹ W/m². This value represents the energy transmitted by the wave over a given area and may vary depending on the frequency and amplitude of the wave.

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Answer:

what graph?

Explanation:

please give the proper information

The FitnessGram PACER Test is a multistage aerobic capacity test that progressively gets more difficult as it continues.

The test is used to measure a student's aerobic capacity as part of the FitnessGram assessment. Students run back and forth as many times as they can, each lap signaled by a beep sound. The test get progressively faster as it continues until the student reaches their max lap score.

The PACER Test score is combined in the FitnessGram software with scores for muscular strength, endurance, flexibility and body composition to determine whether a student is in the Healthy Fitness Zone™ or the Needs Improvement Zone™.