Identify the three subatomic particles.
Where are each of the particles located
within the atom?

Answer:

velocity has direction and acceleration doesn't

Answer:

Longshore drift has a very powerful influence on the shape and composition of the coastline. It changes the slopes of beaches and creates long, narrow shoals of land called spits, that extend out from shore. Longshore drift may also create or destroy entire “barrier islands” along a shoreline.

the spring constant of the spring is k. the spring is initially compressed a distance x0. the block is released from rest.

Velocity is the measure of the amount of distance an object covers in a given amount of time. Here's a word equation that expresses the relationship between distance, velocity and time: Velocity equals distance travelled divided by the time it takes to get there.

Speed = Distance/Time – This tells us how slow or fast an object moves. It describes the distance travelled divided by the time taken to cover the distance. Time = Distance / Speed, as the speed increases the time taken will decrease and vice versa.

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The 3 cm vector represents 63 km.

Since a 1 cm long vector represents a displacement of 21 km, we need to find the number of kilometers a 3 cm vector represents.

Let x represent the displacement the 3 cm vector represents.

By ratio, we have 1 cm: 21 km = 3 cm : x

So, 1 cm/21 km = 3 cm/x

Cross-multiplying, we have

x × 1 cm = 3 cm × 21 km

x = 3 cm × 21 km/1 cm

x = 63 km

So, the 3 cm vector represents a displacement of 63 km.

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Answer:

"One calorie of heat is defined as the amount of heat needed to raise the temperature of one gram of water by one degree Celsius"

Hope this Helps!

Explanation:

One calorie of heat is defined as the amount of heat needed to raise the temperature of one gram of water by one degree Celsius (or one kelvin).

Answer:

1. The distance of image from the plane mirror is same as the distance of object (person) from the plane mirror but the image is formed behind the mirror.

v=u=3 m

Thus distance between image and the person d=u+v=3+3=6 m

2.A concave mirror has a radius of curvature of 1.0 m. An object is placed 2.0 m in front of the mirror. Can you determine the location of the image (in cm)

1/v = 1/f - 1/u = 1/50 - 1/200 = 4/200 - 1/200 = 3/200

v = 200/3 c

NUMBER 3 Ans: 18.75 cm.

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Answer:

I already know the first one is electromagnetic but I don't know the second one sorry

Explanation:

Answer:

1/f = 1/i + 1/o      thin lens equation

1/i = 1/f - 1/o

i =  o * f / ( o - f) = 50 * (-20) / (50 - (-20)) = -14.3 cm

The final image is  erect and 14.3 cm behind the curved surface

M = -o / i = 14.3 / 50 = .29      magnificaton of object

S = .29 * 25 cm = 7.1 cm       appearance of bird in mirror (height)

It is important to note that the debate between scientific realism and antirealism is ongoing and complex, with various nuances and perspectives within each position. Different philosophers of science and scientists may hold different views on the nature of scientific terms and their relationship to reality.

According to a scientific realist perspective, scientific terms for unobservable phenomena such as "atom" and "black hole" are seen as referring to entities that truly exist in reality. Scientific realists believe that scientific theories and concepts accurately capture aspects of the world, including unobservable entities and phenomena. They argue that scientific theories provide the best explanation of the natural world and aim to describe the underlying structure and mechanisms of reality.

On the other hand, scientific antirealists hold a different view. They argue that scientific terms that refer to unobservable phenomena do not necessarily correspond to something that exists independently in reality. Antirealists often emphasize the instrumentalist view of science, which suggests that scientific theories are simply tools or frameworks that help us organize and predict observable phenomena, without making claims about the ultimate nature of reality.

Antirealists may argue that scientific theories are subject to revision and change over time as new evidence emerges, suggesting that the terms used to describe unobservable phenomena are not fixed and may not have a one-to-one correspondence with actual entities in reality. They may also highlight the role of social and cultural factors in shaping scientific knowledge, suggesting that scientific terms are influenced by human conventions and interpretations.

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The Nernst Equilibrium Potential is the potential energy (in mV) when an ion is in electrical equilibrium. The correct option is C.

The Nernst equilibrium potential is a theoretical membrane potential at which the electrical gradient of an ion is precisely counterbalanced by the opposing chemical gradient. For the ion, this means that there is no net flux of the ion through the membrane, and it is at equilibrium.

As a result, this concept defines the voltage at which ion movement would be equal if there were no other forces opposing the movement. For a single ion, the Nernst equilibrium potential may be computed utilizing the following formula:

E ion = (RT/zF) * ln([ion]outside/[ion]inside)

where E ion  represents the Nernst equilibrium potential for an ion, R is the gas constant, T is temperature (in Kelvin), z is the charge of the ion, F is Faraday's constant, and [ion]outside/[ion]inside represents the ion concentration ratio outside/inside the cell.

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Explanation:

\(E = \frac{BA}{t} \sin( \theta) \\ = \frac{1.23 \times 2}{1} \\ = 2.46 \: V\)

Answer:

3.33 A

Explanation:

Two resistors wired in paralle to a voltage source will both have the same voltage applied.

V = I R
V/R = I      for the 12 ohm   :  40 V/ 12Ω = 3.33 A

Both objects will have the same temperature,  larger than T but smaller than 2T.

A system in equilibrium if there is no change in temperature after long time.

Assuming the system of two objects with the temperatures 3T and 2T.

When we put them together, heat transfer from the hotter object to the colder one takes place, until both of them have the same temperature

Also, the object with temperature 3T loses temperature, while the object with temperature 2T increases its temperature,

2T < T < 3T

Thus, both objects will have the same temperature, which is larger than 2T but smaller than 3T.

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Answer:  (You can cut out whatever part you don't need.)

X-rays are a form of electromagnetic radiation. X-rays have high energy and can pass through most objects, including the body. Medical x-rays are used to generate images of tissues and structures inside the body.     However, getting repeatedly exposed to x-ray radiation may damage cells in the body, and the risk of cancer increases the more you're exposed to that radiation. This is why you should use the x-ray in limited amounts

Answer:

by checking if its malleble with a hammer

Explanation:

The demand for a necessity such as electricity tends to be inelastic. Here's why:Inelastic demand is when changes in price don't affect the quantity demanded as much.

Necessities such as food, water, and electricity often have an inelastic demand, meaning that when the price of the product increases, the quantity demanded does not decrease as much.Explanation:For example, if the cost of electricity increased by 10%, a household might not be able to decrease its use of electricity as much, such as by 10%. The amount of electricity that a household uses might not be affected by price changes because it's a necessity.A vertical demand curve implies that a change in price results in no change in quantity demanded.

Unit elastic refers to a change in price that results in a proportional change in quantity demanded.D elastic refers to the degree of price sensitivity. Demand is said to be elastic when a price change causes a substantial change in demand.

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The system described by the transfer function G(s) = -co² s² + 2a + w², with a damping ratio of 1.3 and a natural frequency of 0.5, has an overdamped unit step response. So, the correct option is (E)

The transfer function of the system is given as G(s) = -co² s² + 2a + w², where co represents the damping ratio, a represents an arbitrary constant, and w represents the natural frequency of the system. We are given that the natural frequency is 0.5 and the damping ratio is 1.3.

To determine the type of unit step response, we need to analyze the damping ratio (co) in relation to the critical damping value (co_critical).

The critical damping ratio (co_critical) is defined as the value where the system is on the threshold between being overdamped and underdamped. It is given by the formula co_critical = 2 * sqrt(a * w²).

In our case, the natural frequency (w) is 0.5, so we can calculate co_critical as follows: co_critical = 2 * sqrt(a * 0.5²).

Since the damping ratio (co) is given as 1.3, we can compare it with co_critical to determine the type of unit step response.

If co > co_critical, the system is considered overdamped (Option E).

If co = co_critical, the system is considered critically damped (Option D).

If co < co_critical, the system is considered underdamped (Option C).

Based on the given values, we can determine that the system is overdamped (Option E) because the damping ratio (1.3) is greater than the critical damping ratio.

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We can use the formula for the velocity of an object in free-fall to find the velocity of the object after 4 seconds the velocity of the object after 4.0 seconds is -41.2 m/s.

In the context of physics, "downward" usually refers to the direction of gravity, which is toward the center of the Earth. So, if an object is moving "downward," it means that it is moving in the direction of gravity, or toward the ground. In the case of an object that is thrown or dropped, "downward" would typically mean that the object is moving from a higher altitude to a lower altitude, under the influence of gravity.

Altitude is the vertical distance above a reference point or surface, usually measured in units of length such as feet or meters. Altitude is often used to describe the height of objects or locations above sea level, which is the standard reference point for altitude measurement

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Answer: gravity

normal force

friction

Explanation:

A force is refered to as the interaction which when unopposed, will lead to a change in an objects motion. The velocity of an object will be changed when force is applied.

Since Alisa s riding down a hill and she and the skateboard are considered to be a single object, then the forces that are acting on her include gravity, normal force and friction.

Answer:

N = N0 e^-kt          calling k the decay constant

70 = N0 e^-2 kt

35 = N0 e^-15 k

2 = e^(-2 + 15) k

.693 = 13 k

k = .0533

N0 = N e^kt

N0 = 70 e^(.0533 * 2) = 77.87

8.75 = 77.87 e^-(.0533 t)

ln .1124 = -.0533 t

t = -ln .1124 / .0533 = 41 yr

Answer:

KE increases and PE decreases.

Explanation:

POTENTIAL ENERGY (PE):

The potential energy of the rock depends upon the height of the rock, as given by the following formula:

P.E = mgh

Therefore, the potential energy will be highest at the initial point due to the highest height attained by rock. As the rock falls, its height will decrease as a result its potential energy will also decrease.

KINETIC ENERGY (KE):

The kinetic energy of the rock depends upon the velocity of the rock, as given by the following formula:

\(K.E = \frac{1}{2}mv^2\)

Therefore, the kinetic energy will be zero at the initial point due to the zero velocity of the rock. As the rock falls, its velocity will increase as a result its kinetic energy will also increase.

Hence, the correct option will be:

KE increases and PE decreases.

Answer:

D

Explanation:

Because I said so

The most devastating factor to biodiversity among the given options is habitat destruction. This is because habitat destruction can lead to the displacement and loss of entire ecosystems, resulting in the extinction of species that rely on that habitat for survival.

While over hunting, global warming, and pollution also have significant impacts on biodiversity, habitat destruction has the greatest potential for irreversible damage to ecosystems and the species that depend on them. The most devastating factor to biodiversity among the options given is habitat destruction. Habitat destruction is the most devastating to biodiversity because it leads to the loss of ecosystems and the species that depend on them. When habitats are destroyed, species lose their food sources, shelter, and breeding grounds, often resulting in population declines and even extinction. Additionally, habitat destruction can exacerbate the effects of other threats like overhunting, global warming, and pollution.

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Any action intended to hurt, harm, or cause suffering to another living thing or group of beings is considered to be aggressive.

Specifically, acts that injure someone physically. action that harms psychological health, such as that which instills apprehension, concern, or anguish.When you hurt your brother, you also hurt him. One way to damage someone is to hurt them physically.

People who are distressed could also believe that they are unable to handle or cope with alterations brought on by everyday activities or medical conditions like cancer. It is unfavourable, unhealthy, and discouraging. Stressors events that trigger the stress reaction in our bodies. A stressor is anything that creates stress.

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The analog cathode ray oscilloscope in the lab manual is related to the digital oscilloscope used in the lab in the same way that 1950s era television is related to modern flat-screen television.

Analog cathode ray oscilloscope and the 1950s era television are older technologies that use cathode ray tube (CRT) to display images or waveforms.

They operate by deflecting an electron beam on a phosphorescent screen to create visual display. And, in contrast, digital oscilloscope and modern flat-screen televisions use digital processing and display technologies to provide more precise and flexible visual representations.

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When you place two mirrors parallel to each other, you create an infinite number of reflections. The number of reflections generated is dependent on the distance between the mirrors and the observer.In this case, we have a mirror placed 1 foot behind the observer and another mirror 4 feet in front of the observer.

The two mirrors are separated by a distance of 5 feet. When you look into the mirror, you will see an infinite number of reflections. Each reflection appears smaller than the previous one. The distance between each reflection decreases exponentially. This pattern of decreasing distances is known as an infinite geometric series.In order to find out how far into the mirror your brain will perceive your hair, you need to calculate the sum of this infinite geometric series. The sum of an infinite geometric series is given by the formula:S = a/(1 - r)where a is the first term of the series and r is the common ratio.

In this case, the first term is 4 feet (distance to the first reflection) and the common ratio is 1/2 (since each reflection appears half as far away as the previous one).Thus, using the formula:S = 4/(1 - 1/2)S = 8 Therefore, your brain will perceive your hair to be 8 feet into the mirror.

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Answer:

B

Good luck! Have a great day!

The angle between the incident ray and the reflected ray is 70.0 degrees.

When a ray of light strikes a plane mirror, the angle of incidence is equal to the angle of reflection. This is known as the Law of Reflection. In your case, the angle of incidence is 35.0 degrees, so the angle of reflection will also be 35.0 degrees.

To find the angle between the incident ray and the reflected ray, we can add the angle of incidence and the angle of reflection together:

Angle between incident ray and reflected ray = Angle of incidence + Angle of reflection
Angle between incident ray and reflected ray = 35.0 degrees + 35.0 degrees
Angle between incident ray and reflected ray = 70.0 degrees

So, the angle between the incident ray and the reflected ray is 70.0 degrees.

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