A diver estimates the depth of water to be 10m but realizes it is much deeper when he dives in it. Explain why his judgment was wrong

When electrons move, they create a field. set the field display type to full field and the transmitter movement to oscillate

Transmission electron microscopes (TEM) are microscopes that use a particle beam of electrons to visualise specimens and generate a highly-magnified photograph.

TEMs can enlarge gadgets up to two million times. In order to get a higher concept of simply how small that is, consider how small a cell. It isn't any marvel TEMs have turn out to be so precious within side the organic and scientific fields.

TEMs appoint a excessive voltage electron beam on the way to create an photograph. An electron gun on the pinnacle of a TEM emits electrons that tour thru the microscope’s vacuum tube. Rather than having a tumbler lens focusing the mild, the TEM employs an electromagnetic lens which focuses the electrons into a totally nice beam.

This beam then passes thru the specimen, which could be very thin, and the electrons both scatter or hit a fluorescent display at the lowest of the microscope. An photograph of the specimen with its diverse elements proven in specific sun sunglasses in keeping with its density seems at the display. This photograph may be then studied without delay in the  TEM or photographed. 

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Answer:

m2

Explanation:

I just knowyyysydyyyyyyyýdydysyydysysydydhdhhdhdhdhxhchxhhxhc

Answer:

Square Meters to Square Centimeters Conversion

1 Square meter (m2) is equal to 10000 square centimeters (cm2). ... For example, to convert 10 m2 to cm2, multiply 10 by 10000, that makes 100000 cm2 is 10 m2.

cm2↔mm2 1 cm2 = 100 mm2.

Answer:

4.9

Explanation:

yan po ang sagot thank 7

sna nakatulong divide molng sya para makuha mo yung sagot.

thank u ulit mars /pre

Answer:

They are both placed at high vantage points for an optimal experience.

Explanation:

Gravity works in your favor when participating in bungee jumping as well as ziplining

Answer:

 U = 25 J

Explanation:

The energy in a set of charges is given by

          U = \(k \sum \frac{q_i}{r_i}\)

in this case we have three charges of equal magnitude

          q = q₁ = q₂ = q₃

with the configuration of an equilateral triangle all distances are worth

          d = a

          U = k ( \(\frac{q_1q_2}{ r_1_2 } + \frac{q_1q_3}{r_1_3} + \frac{q_2q_3}{r_2_3}\) )

we substitute

           15 = k q² (3 / a)

            k q² /a = 5

For the second configuration a load is moved to the measured point of the other two

          d₁₃ = a

The distance to charge 2 that is at the midpoint of the other two is

          d₁₂ = d₂₃ = a / 2

           U = k (\frac{q_1q_2}{ r_1_2 } + \frac{q_1q_3}{r_1_3} + \frac{q_2q_3}{r_2_3})

            U = k q² (  \(\frac{2}{a} + \frac{1}{a} + \frac{2}{a}\) )

            U = (kq² /a) 5

substituting

            U = 5 5

            U = 25 J

Scientists use the arrival times of seismic waves at multiple stations, along with amplitude data, to triangulate the location of an earthquake epicenter.

To determine the location of an earthquake, scientists use the data recorded at seismic stations. The seismic stations are equipped with seismometers that detect and record seismic waves generated by the earthquake. These waves travel through the Earth's interior and arrive at different times at various seismic stations.To locate the epicenter of the earthquake, scientists analyze the time differences between the arrivals of primary (P) waves and secondary (S) waves at multiple stations. P waves are faster and arrive first, followed by slower S waves. By comparing the time interval between the arrival of P and S waves at different stations, scientists can calculate the distance of each station from the earthquake epicenter.

Using the distances from at least three seismic stations, scientists plot circles around each station on a map. These circles represent the potential distance between the station and the epicenter. The intersection of the circles determines the most likely location of the earthquake epicenter. This method is known as the "triangulation" technique.Additionally, the amplitude of the recorded seismic waves provides information about the earthquake's magnitude. By analyzing the amplitude data from different stations, scientists can estimate the earthquake's size or magnitude.

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Note- Sorry The diagram cannot be added .

The man at C must exert a force of 18 lb to prevent the pole from rotating when the man at B exerts a force of 30 lb.

Clockwise moment caused by the force P at B = P * d1 = 30 lb * 3 feet = 90 lb-ft

The counterclockwise moment caused by the force F at C = F * d2

Since the resultant moment is zero, we have:

90 lb-ft = F * d2

To find F, we can rearrange the equation:

F = 90 lb-ft / d2

Substituting the value of d2 (5 feet):

F = 90 lb-ft / 5 feet = 18 lb

Force is a fundamental concept in physics that describes the interaction between objects and their ability to cause changes in motion or deformations. It is a vector quantity, meaning it has both magnitude and direction. Force can be represented by various physical manifestations, such as pushes, pulls, or impacts.

According to Newton's laws of motion, force is directly related to an object's acceleration. When an unbalanced force acts on an object, it causes a change in its velocity, either by accelerating or decelerating it. Force is measured in units called newtons (N), and one newton is defined as the force required to accelerate a mass of one kilogram by one meter per second squared.

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Complete Question:

If the man at B exerts a force of P = 30 lb on his rope, determine the magnitude of the force F the man at C must exert to prevent the pole from rotating, i.e., so the resultant moment about A of both forces is zero.

Explanation:

There are several methods to identify and categorize objects in space but the 3 important are:

•Mass/Size

•Revolution

•Gravity

Example:

If you look at the planet Mars you will identify it by many methods but the basic way to indentify it is by looking at it's gravitational pull, Mass and size of the planet and the revolution of the planet around the star.

You can also identify them by looking at their elements present in it (like mars is red due to presence of high amount of iron/red soil in it), and Like Saturn is mostly identified by it's rings. It's not always about planets but it's also about the asteroids, stars, Natural satterlites of planets (like moon) and more.

Hope this helps you

Have a nice day :)

The ranking of the cars from the largest to smallest based on the linear momentum, size of impulse and force needed to stop them is,

Light blue car = Purple car > Red car = Yellow car =  Blue car > Green car

P = mu

where;

m is the mass of the automobile

u is linear speed of the automobile

The linear momentum of the Red car is given as;

P = 1000 x 10 = 10, 000 kg.m/s

The linear momentum of the Yellow car is given  as;

P = 2,000 x 5 = 10,000 kg.m/s

The linear momentum of the Blue car is given as;

P = 500 x 20 = 10,000 kg.m/s

The linear momentum of the Light blue car is given as;

P = 1,000 x 20 = 20,000 kgm/s

The linear momentum of the Green car is given  as;

P = 500 x 10 = 5,000 kg.m/s

The linear momentum of the Purple car is given  as;

P = 4,000 x 5 = 20,000 kg.m/s

we can defined Impulse as the change in linear momentum;

J = ΔP

J = m(u - v)

J = mu = P

The force needed to stop each car is directly proportional to the impulse needed to stop the car.

Force x t = J

where;

t is the time of motion

Thus, we can conclude that the linear momentum of each car is directly proportional to the impulse and force needed to stop it.

P ∝ J ∝ Force

Ranking the cars from the largest to smallest based on the linear momentum, size of impulse and force needed to stop them;

Light blue car = Purple car > Red car = Yellow car =  Blue car > Green car

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Complete question:

Six automobiles are initially traveling at the indicated velocities. The automobiles have different masses and velocities. The drivers step on the brakes and all automobiles are brought to rest. Red Car: 1000kg, 10m/s Yellow Car: 2,000kg, 5m/s Blue Car: 500kg, 20m/s Light Blue Car: 1,000kg, 20m/s Green Car: 500kg, 10m/s Purple Car: 4,000kg, 5m/s Part A Rank these automobiles based on the magnitude of their momentum before the brakes are applied, from largest to smallest. Rank from largest to smallest. To rank items as equivalent, overlap them. Part B Rank these automobiles based on the magnitude of the impulse needed to stop them, from largest to smallest. Rank from largest to smallest. To rank items as equivalent, overlap them. Part C Rank the automobiles based on the magnitude of the force needed to stop them, from largest to smallest. Rank from largest to smallest. To rank items as equivalent, overlap them. if the ranking cannot be determined, check the box below.

Answer:

K

Cu

Cl

Explanation:

Answer:

This is what I got the teacher hasn’t graded it yet so sorry if it’s not right

Explanation:

Answer:

A)

Explanation:

Energy transformation is when energy changes from one form to another.

A star of apparent magnitude 5 appears dimmer than a star of apparent magnitude 3.

Apparent magnitude is a measure of the brightness of celestial objects as observed from Earth. The magnitude scale is logarithmic, meaning that each whole number increase or decrease represents a difference in brightness by a factor of approximately 2.512. Therefore, a star with a higher magnitude appears dimmer than a star with a lower magnitude.

In this case, a star with an apparent magnitude of 3 is brighter than a star with an apparent magnitude of 5. The difference in magnitude of 2 corresponds to a brightness ratio of approximately 6.31. This means that the star of magnitude 3 is about 6.31 times brighter than the star of magnitude 5. The human eye perceives this difference as a noticeable decrease in brightness. The magnitude scale is reversed, so smaller numbers indicate brighter objects, with negative magnitudes representing the brightest objects visible in the sky.

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Answer: zoologist

Explanation: hope this helps!!

Before moving away from the right curb to enter traffic, it is essential to perform several important checks to ensure a safe maneuver.

First, ensure that your vehicle is properly positioned close to the right curb, allowing enough space for traffic to pass on your left. Adjust your side and rearview mirrors to provide maximum visibility.

Once your vehicle is properly positioned, activate your turn signal to indicate your intention to merge into traffic. Check your rearview mirror to assess the speed and distance of approaching vehicles. Then, glance over your left shoulder to check your blind spot, an area that may not be visible in your mirrors.

This last shoulder check is critical as it helps you identify any vehicles, cyclists, or pedestrians that may be approaching from behind and could potentially be in your path as you move away from the curb. By performing this check, you can ensure that there are no hidden hazards and that it is safe to merge into the traffic lane.

Remember, maintaining awareness of your surroundings and performing the necessary checks before entering traffic is vital for a safe and successful merge.

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The three basic types of neurons are sensory neurons, motor neurons and interneurons

Neurons are the fundamental units of the brain and nervous system, the cells responsible for receiving sensory input from the external world, for sending motor commands to our muscles, and for transforming and relaying the electrical signals at every step in between.

They are also called neurones or nerve cells. There are three types of neuron: The sensory neurons, motor neurons and interneurons

Sensory neurons respond to stimuli such as touch, sound, or light that affect the cells of the sensory organs.

Motor neurons signals from the brain and spinal cord to control everything from muscle contractions to glandular output.

Interneurons to other neurons within the same region of the brain or spinal cord.

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Answer:

Sunscreen is like a shield, you would want a better shield to protect you than a weak one so companies try to make their sunscreen better than the rest.

Explanation: UV light is very dangerous to the skin so it helps with sunburn,skin sensitivity,etc.

Answer:

\(2000kg\)

Explanation:

Kinetic Energy Equation: \(KE = (mv^2)/2\)

KE: Kinetic energy of the object

m: Mass of the object

v: Velocity of the object

\(400000=(m*20^2)/2\)

\(800000=400m\)

\(m=2000kg\)

The spring constant of the dart gun compressed by 2 cm is determined as 121.275 N/m.

To determine the spring constant of the dart gun, we can use the conservation of energy principle, which states that the initial potential energy stored in the compressed spring is converted to the kinetic energy of the dart and its potential energy due to its position in the gravitational field.

The initial potential energy stored in the compressed spring is given by:

U = (1/2)kx²

where;

In this case, x = 0.02 m.

The kinetic energy of the dart just after it leaves the spring is given by:

K = (1/2)mv²

where;

Since the dart is fired straight up, its initial velocity is zero.

At the highest point of the dart's trajectory, all of its kinetic energy has been converted to potential energy due to its position in the gravitational field. The potential energy of the dart at this point is given by:

U = mgh

where;

Equating the initial potential energy stored in the spring to the final potential energy of the dart, we have:

(1/2)kx² = mgh

Substituting the given values, we get:

(1/2)k(0.02)² = 0.01 * 9.81 * 5.5

Solving for k, we get:

k = (0.01 x 9.81  x 5.5) / (0.02)² = 121.275 N/m

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Puck mass (m) and J (impulse), initial and ultimate velocities are the known and unknown quantities, respectively.

The integral of a force, F, over the time period over which it acts, t, is known as an impulse in classical mechanics and is denoted by the letters J or Imp. Since force is a vector quantity, impulse also belongs to this category. An object experiences an impulse, which results in an equivalent vector change in its linear momentum along with the subsequent direction. The kilogram meter per second (kg m/s) and newton second (N s), are dimensionally equal units of momentum and impulse, respectively. In the British Gravitational System, the unit is the slug-foot per second (slugft/s), but the equivalent English engineering measure is the pound-second (lbfs). As long as it is acting, a resulting force accelerates the body and alters its velocity.

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Answer:i don't understand

Explanation:

The true statement about the equation of respiration is:

The mass of the reactants is the same as the mass of the products; option C.

Respiration is the process by which living organisms break down large molecules such as glucose into smaller molecules such a carbon dioxide and water to release energy in the form of ATP.

Respiration are of two types in living organisms:

The equation of aerobic respiration is given below:

In the given equation above, glucose reacts i the presence of oxygen is broken down into carbon dioxide and water and energy is released.

According to the law of conservation of mass, the mass of reactants is equal to the mass of the products.

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Note that the complete question is given below:

Respiration describes the process that living cells use to release energy by combining sugar and oxygen. The primary chemical changes that happen during respiration are shown in the equation below.

C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O + energy

Which statement correctly compares the reactants and products of the equation?

Which statement correctly compares the reactants and products of the equation?

A.

The mass of the reactants is less than the mass of the products.

B.

The mass of the reactants is greater than the mass of the products.

C.

The mass of the reactants is the same as the mass of the products.

D.

The number of reactant molecules is greater than the number of products.

The first law of thermodynamics provides a fundamental principle for energy conservation in thermodynamic systems. It states that the change in internal energy (ΔU) of a system is equal to the heat added to the system (q) minus the work done by the system (w).

According to the first law of thermodynamics, the energy of a system can neither be created nor destroyed, only transferred or converted from one form to another. As a result, there are two ways to quantify energy change in a system: as a result of heat transfer and as a result of work done. The first law of thermodynamics is expressed mathematically as follows:

ΔU = q - w

where ΔU is the change in internal energy, q is the heat added to the system, and w is the work done by the system.

Therefore, to express q in terms of ΔU and w:q = ΔU + w. This equation allows us to quantify the relationship between heat, work, and the change in internal energy of a system, providing a basis for analyzing and understanding energy transfers in various processes.

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Answer:

Explanation:

The answers are Static electricity, gravity, and magnetism.

Static electricity:

This force is very similar to gravitational force, the main difference being that gravitational force acts between masses, and electrostatic force acts between two charged bodies.

This force can be generated by rubbing the comb against clothing and then holding it close to tiny pieces of paper. You can watch the pieces of paper standing on their ends being attracted to the comb.

Gravity:

Gravitational force is a type of attractive force that exists between all bodies of mass, and the gravitational force of the sun keeps the sun and all the other planets of the solar system in a fixed orbit. Gravitation force is not required to be contacted to excerpt its downward force.

Magnetism:

Remember that if you push the ends of the magnet together, the other magnet will bounce off due to the magnetic force. It is also responsible for attracting iron with the force of magnets. The magnetic force of a magnet decreases as the distance between magnets increases.

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The ball will return to its starting point with the same speed it was thrown with but in the opposite direction. So, the ball's speed when it returns to its starting point will be -8.0 m/s.

The time it takes for the ball to reach its highest point can be found using the formula:v = u + at, where v is the final velocity (0 m/s at the highest point), u is the initial velocity (8.0 m/s upward), a is the acceleration due to gravity (-9.81 m/s^2 downward), and t is the time taken. Solving for t, we get:
t = (v - u) / a
t = (0 - 8.0) / (-9.81)
t = 0.815 s (rounded to 3 significant figures)
Therefore, the ball will take a total of 2t = 1.63 s to reach its starting point.

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Answer:

16.64 km/h

Explanation:

Think of the x and y components as the a and b sides of a triangle and simply do the Pythagorean Theorem:

\(a^2+b^2=c^2\)

\(14^2+9^2=c^2\)

\(\sqrt{196+81}=c\)

\(\sqrt{277}=c\)

\(16.64 km/h\)

Answer:

Ursa Major

Explanation:

The constellation that appears to have the shape of a big ladle or a question mark is Ursa Major (also known as the Great Bear).

Answer:

35m/s south

Explanation:

Answer:

It's C

Explanation:

Your welcome!

Answer:

A

Explanation:

It depends on the scale of the volcanic eruption. A smaller eruption may only affect the nearby area, but a large one can affect the whole world. For example, the Krakatoa eruption of 1883 created an ash cloud which lowered global temperatures and affected the climate for a year afterwards.

An explosive eruption by a single volcano can affect only the lifeforms living on the volcano. The correct option is B.

A volcano is an opening in the Earth's surface through which molten rock, ash, and gas can escape. Volcanoes are formed by the movement of tectonic plates, which create weak spots or vents in the Earth's crust where magma can rise to the surface.

Volcanoes can form in different ways, but most are formed at plate boundaries, where one tectonic plate is moving under another (subduction zone), or where two plates are moving away from each other (divergent boundary). When magma rises to the surface, it can form a volcanic cone or mountain over time.

There are three main types of volcanoes, based on their shape and the type of eruptions they produce:

(i)Shield volcanoes - broad, gentle slopes formed by lava flows that spread out over a wide area.

(ii)Stratovolcanoes (also called composite volcanoes) - tall, steep-sided cones formed by alternating layers of lava, ash, and other volcanic debris.

(iii)Calderas - large, basin-shaped depressions that form when a volcano collapses or erupts so forcefully that it empties its magma chamber.

Volcanoes can be active, dormant, or extinct. Active volcanoes are those that have erupted recently or are expected to erupt soon, while dormant volcanoes have not erupted in a long time but could still erupt in the future. Extinct volcanoes are those that have not erupted in thousands of years and are unlikely to erupt again.

Here in the question,

An explosive eruption by a single volcano can have a significant impact on the surrounding environment and local communities, but its effects are generally limited to the immediate vicinity of the volcano. The eruption may release ash, gases, and lava flows that can cause damage to nearby ecosystems and affect the health of humans and animals living in the area. However, the effects are unlikely to extend beyond the local region, let alone affect lifeforms throughout the world.

Therefore,  B. only the lifeforms living on the volcano, is the correct option.

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