material speed of light
space 3 x 108 m/s
water 2.25 x 108 m/s
glass 2 x 108 m/s
air 3 x 108 m/s
Light moves from air into a new material. The greatest refraction would occur when light passes through which material?
A. air
B. water
O c. glass
D. It would refract the same amount in each material.

The energy stored in a 3-cm-diameter, 13.0-cm-long solenoid that has 180 turns of wire and carries a current of 0.780 A is 6.72 x 10⁻1 J.

Given,

The diameter of the solenoid (d) is 3 cm (0.030 m)

Length of the solenoid is 13 cm

Current is 0.780A

we can calculate the cross-sectional area (A) using the following expression.

A = \(\pi\) x(\(\frac{d}{2}) ^{2}\) = \(\pi\) x (\(\frac{3}{2})^{2}\) = 7.06 \(m^{2}\)

Next, we will calculate the inductance (L) of the solenoid using the following expression.

L= \(\frac{(4\pi *10^{-7} H/m)*180^{2} *(7.06 m^{2} )}{0.130m}\) = 2.21 H

where,

μ₀ is the vacuum permeability

N is the number of turns

l is the length of the solenoid

Finally, for a current (I) of 0.780 A, we can calculate the energy stored in solenoid (E) using the following expression.

E = \(\frac{1}{2}\) x L X I² =  0.5 x 2.21 H x (0.780 A)² = 6.72 x 10⁻1 J

The energy stored in a 3-cm-diameter, 13.0-cm-long solenoid that has 180 turns of wire and carries a current of 0.780 A is 6.72 x 10⁻1 J.

Learn more about solenoid, refer: brainly.com/question/15504705

#SPJ4

If you look at courage and if you look at the brain, there is one particular brain structure that plays a very important role when it comes to courage and your own performance. This part of the brain is called the amygdala. The amygdala is a brain structure that is very small, and we have two of them, one of the left side of the brain, one on the right side of the brain. They’re very small and look like an almond. Amygdala is also the Latin word for almond. Even though they are small, they amygdala is also extremely powerful. It plays a very important role in our survival. Whenever there is a real danger outside, it will trigger a fight, flight or freeze response, so you will fight danger, run away, or just be blocked in your own emotions, you will freeze, perhaps you will hide. The amygdala is very important for our survival and for many emotions in general, but in many situations, the amygdala will also become active when there is no real danger, for example, standing on stage and holding a presentation, leading a difficult conversation. These are two examples where there’s no real danger, but nevertheless, the amygdala can be triggered and cause this feeling of nervousness and anxiety. It’s these feelings of nervousness, anxiety or insecurity that will also block us in our potential to hold a presentation or to lead a good conversation.

The position-time graph gives the position of an object at any instant of time. The y-intercept gives the position of the object at the instant when the time is zero. That is, the y-intercept gives the initial position of the object.

Thus the given statement is false.

Answer:

ʕ •ᴥ•ʔ

Explanation:

Answer:

All the sides and inner angles of a regular form must be equal. The sides and angles of an irregular form aren't the same. An equilateral triangle, for example, is a regular form because all of its sides and angles are the same length.

OAmalOHopeO

Answer:  The magnitude of the ball's momentum change is  

      Δp=m∣ν  

i

​

−ν  

f

​

∣=(0.70kg)∣(5.0m/s)−(−2.0m/s)∣=4.9kg⋅m/s.

Explanation:

According to Newton's Law of Universal Gravitation, the force between to bodies of masses m and M separated by a distance r is:

Where G is the gravitational constant:

In all cases, use M=60kg, and replace the values of the second mass m and the distance r accordingly.

A) m=80kg, r=1.4m

B) m=130,000kg, r=10m

C) m=5.22*10^9kg, r=1000m

D) m=0.045kg, r=0.95m

Answer:

B

Explanation:

filament lamp ofcourse

The mutual inductance of this system is approximately 0.0016 T m²/A.

The mutual inductance of this system can be determined using the formula:
M = (μ₀ * n₁ * n₂ * A) / l
where:
- M is the mutual inductance
- μ₀ is the permeability of free space (4π x 10^-7 T m/A)
- n₁ is the number of turns in the solenoid (600 turns)
- n₂ is the number of turns in the rectangular coil (1 turn)
- A is the area of the rectangular coil

=1.1 cm x 1.4 cm

= 1.54 cm²

= 1.54 x 10^-4 m²)
- l is the length of the solenoid (0.55 m)

Substituting the values into the formula, we get:
M = (4π x 10^-7 T m/A) * (600 turns) * (1 turn) * (1.54 x 10^-4 m²) / (0.55 m)
Simplifying the expression:
M ≈ 0.0016 T m²/A
So, the mutual inductance of this system is approximately 0.0016 T m²/A.

In this system, the solenoid and the rectangular coil are perpendicular to each other, meaning the rectangular coil is placed at a right angle to the long axis of the solenoid.

Learn more about inductance from the following link:

https://brainly.com/question/29805249

#SPJ11

The lateral magnification of the object is 2.

The focal length of a lens is the distance from the lens' center to the point where the light rays converge (or appear to converge).

The power of a lens is determined by its focal length. The refractive index, or the bending of light, is determined by the curvature of the lens surface.

In the given scenario, the object's distance from the convex lens (converging lens) is 10 cm and the focal length is 20 cm.

We can use the formula for lateral magnification, which is:

M = v/u

Where v is the image distance and u is the object distance.

Since the image is formed on the other side of the lens, v will be negative.

u = -10 cm, as the object is located 10 cm from the lens on the opposite side of the image.

Magnification formula:

M = v/u= (-20)/(-10)=2

Learn more about focal length at:

https://brainly.com/question/32579168

#SPJ11

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

\(a = \frac{f}{m} \\ \)

where

f is the force

m is the mass

From the question we have

\(a = \frac{200}{100} \\ \)

We have the final answer as

Hope this helps you

Metacommunication is a form of communication in which the meaning or significance of a message is conveyed through nonverbal cues rather than verbal content. The goal of metacommunication is to balance power in a discussion or debate.

The most efficient way to do this is by utilizing the right technique of metacommunication. A way to achieve balance is through the use of "I statements" or "We statements." We statements establish a common goal and reaffirm a sense of togetherness. The use of "You statements" creates a power imbalance, resulting in one person being in control and the other feeling inferior. From the options given above, option C is not an example of "metacommunication" used to balance power. This is because it utilizes "you statements," which does not foster equality between the parties involved in the conversation. Instead, it reinforces power imbalance since one person assumes a superior position. The other options utilize "I statements" or "we statements," which reaffirms the sense of togetherness and fosters equality between the parties involved in the discussion. Option A states that both parties have agreed to work towards a solution without bringing up a sensitive topic, which gives equal power to both sides. Option B shows concern about the inferior position of an individual, which gives power back to them. Option D conveys that the person feels ganged up on, thereby giving them power to express their feelings. Finally, option E states a preference, which gives both sides an equal say.

Option C is not an example of "metacommunication" used to balance power because it does not utilize "I statements" or "we statements," which fosters equality between the parties involved in the conversation. Instead, it reinforces power imbalance since one person assumes a superior position.

To learn more about Metacommunication visit:

brainly.com/question/30501414

#SPJ11

Answer: In the direction of the first car.

Explanation:

Let the initial velocity of the first car be equal to U1 and the initial velocity of the second car be equal to U2

Given that the car is travelling with a positive velocity, and after it collides with another car moving with a negative velocity, the momentum before collision will be

M1U1 - M2U2

If the first car is still moving with a positive velocity, the second car will also be moving in the direction of the first car if the collision is inelastic collision.

Therefore, the direction of the second car will be positive direction if the collision is inelastic collision.

Answer:

mutualistic relationship

Answer:

Explanation:

b

I think that you need the gravitational acceleration of mercury

so we will use Newton's gravitational law :

gravitational acceleration = \(\frac{G * m}{r^{2} }\)

G is the gravitational constant = G = 6.673×10^-11 N m^2 kg^-2

after substitution :

6.673×10^-11 * 3.2x10^23 / (2.43x10^6)^2

using calculator :

gravitational acceleration of mercury = 3.61625 m/s^2

pls give me brainliest

Power can be defined in physics as the rate at which the body uses energy to perform useful work.

power is the time rate of doing work or delivering energy in science and engineering. It is expressed as the amount of energy transferred or work done divided by the time interval t—or W/t.

Power can be defined as the amount of work done in a unit of time at a given rate. The joules per second (J/s) unit of power in the SI is the Watt (W). Horsepower (hp), which roughly equates to 745.7 watts, is sometimes used to describe a machine's or vehicle's power.

It is described mathematically as:

P=Wt, where W denotes finished work and t denotes time.

P=I2R is yet another formula for electrical power.

I am current, and R is here.

In copper cable, the current is: The power loss per unit of length is: I = 300 A. Pl=2W/m.

To learn more about Power here:

https://brainly.com/question/9605409

#SPJ1

Answer:

Its Letter C Because Gravity's characteristic is to draw objects (including us) toward its center (which in this case, Earth).

Answer:

well they make the siren go beacaus eyou are doing somthing wrong so what were you thinking

Explanation:

Answer:

Answer:

a= 1 m/s^2

Explanation:

Average acceleration can be found by dividing the change in velocity by the time.

a= ΔV/t

The change in velocity is the difference of the final velocity and initial velocity.

ΔV= final velocity - initial velocity

The final velocity is 30 m/s and the initial velocity is 25 m/s

ΔV= 30 m/s- 25 m/s

ΔV= 5 m/s

The time is 5 seconds.

Now we know the two values.

ΔV= 5 m/s

t= 5 s

Substitute the values into the formula.

a= 5 m/s / 5 s

Divide.

a= 1 m/s/s

a= 1 m/s^2

The average acceleration of the car is 1 meter per second squared.

If the distance between the Earth and the Sun were to double, the intensity of sunlight would decrease by a factor of four.

The original distance between the Earth and the Sun is denoted by "r", and the new distance is denoted by "2r", then the ratio of the intensities of sunlight in the new orbit to the original orbit can be calculated as:

(Intensity in new orbit) / (Intensity in original orbit) = (Distance from Sun in original orbit)^2 / (Distance from Sun in new orbit)^2

= r^2 / (2r)^2

= r^2 / 4r^2

= 1/4

Therefore, the intensity of sunlight in the new orbit would be one-fourth (or 25%) of the intensity of sunlight in the original orbit. This would have a significant impact on the climate and the ecosystems of the Earth, as the amount of solar radiation reaching the planet would be reduced, leading to cooler temperatures and changes in weather patterns.

Learn more about intensity of sunlight here

brainly.com/question/28327828

#SPJ4

Answer: The inner core is solid, the outer core is liquid, and the mantle is solid/plastic. This is due to the relative melting points of the different layers (nickel–iron core, silicate crust and mantle) and the increase in temperature and pressure as depth increases.

Explanation: I just did a quiz with this question

Answer:

12.01

Explanation:

Given parameters:

Abundance of C-12  = 98.89%

mass of isotope  = 12amu

Abundance of C - 12  = 1.11%

mass of isotope  = 13.003

Unknown:

Average atomic mass of carbon  = ?

Solution:

The average atomic mass ;

R.A.M  = (mass of isotope x abundance of isotope)-12 + (mass of isotope x abundance of isotope)- 13

Insert the parameters and solve;

R.A.M  =( 12  x 98.89%)  + (1.11% x 13.003)

 R.A.M = 11.87 + 0.14 = 12.01

1 kilometer

Explanation:

hope it helps

Answer:

275m

Explanation:

hope it helps

pls give me brainliest

An electron (charge -e) is at rest in a region of electric potential that varies as a function of position. When released it will move A. into a region of lower potential.

Since the electric potential varies as a function of position, there will be regions of higher and lower potential energy. The electron will move from a region of higher potential energy to a region of lower potential energy. Therefore, the electron will move into a region of lower potential The direction of the electric field is perpendicular to the equipotential lines. Therefore, the electron will move in the direction of the electric field if the equipotential lines are not parallel to the electric field.

If the equipotential lines are parallel to the electric field, the electron will move perpendicular to the electric field. In summary, the electron will move into a region of lower potential while following the direction of the electric field or moving perpendicular to it depending on the orientation of the equipotential lines. So therefore the correct answer is An electron (charge -e) is at rest in a region of electric potential that varies as a function of position. When released it will move A. into a region of lower potential.

Learn more about potential energy at:

https://brainly.com/question/24284560

#SPJ11

Answer:

My believe the answer is

A.) or B.)

Explanation:

Here is why I think A is the answer.

If we use the process of elimination, it would look like this,

a) Porque el aire tiene una temperatura menor que la de su cuerpo; por eso se propaga más rápido.

This makes sense because we all know in winter the weather is very cold and freezing.

b) Porque la temperatura de su cuerpo, siente el aire frio que entra por la ventana.

I feel like this answer is the question, but it could also be an answer, sorry, I'm a little uncertain.

c) Porque el calor de su cuerpo se propaga al medio ambiente, al ser la temperatura del niño mayor que la del aire exterior.

This answer has nothing to do with the question, plus it is very false, our body heat is not enough to overcome the very cold temperature from outside.

d) Porque la temperatura del aire es igual a la temperatura del cuerpo.

This is false because again our body heat is not even compared to the freezing cold temperatures from the winter.

The best method for installing Windows 10 on this system is to Install Windows the same way you would a system that uses a standard hard disk drive.

A hard disk drive or fixed disk is described as an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage with one or more rigid rapidly rotating platters coated with magnetic material.

A solid-state drive(SSD) is described as a solid-state storage device that uses integrated circuit assemblies to store data persistently, typically using flash memory, and functioning as secondary storage in the hierarchy of computer storage.

You do not need to add a standard hard disk to the system and install Windows on the disk instead of the SSD device in order for you to install Windows 10 on a new computer system that uses a SATA SSD device to store data .

Learn more about SSD device at: https://brainly.com/question/28476555

#SPJ1

The fragments reaction is 7.59 MeV/nucleon and  8.39 MeV/nucleon

What is nucleus ?

Neutrons and protons, which have opposite electric charges, make up atomic nuclei. The strongest basic force now understood, known as the strong force, is what holds these things together. A normal atom's nucleus generally holds more than 99.9% of the atom's mass yet takes up considerably less than.01 percent of its volume.

What is fission ?

When a neutron collides with a bigger atom, it excites it and causes it to split into two smaller atoms, which are known as fission products. This process is known as fission. A chain reaction might start as a result of additional neutrons that are also emitted. Huge amounts of energy are produced during the splitting of each atom.

1) m_proton + m_netron + m_electron - m_U

= 92*1.007276466812 + 92*5.4857990943e-4 + 143*1.008664916 - (235.0439299)

= 1.9151 u

= 931.494061 * 1.9151 MeV

= 1784 MeV

= 1784/235 = 7.59 MeV/nucleon

2) m_proton + m_netron + m_electron - m_Cs

= 55*1.007276466812 + 55*5.4857990943e-4 + 82*1.008664916 - (136.9070895)

= 1.2338 u

= 931.494061 * 1.2338 MeV

= 1149 MeV

= 1145/137 = 8.39 MeV/nucleon

Therefore, the fragments reaction is 7.59 MeV/nucleon and  8.39 MeV/nucleon.

Learn more about nucleus from the given link.

https://brainly.com/question/141626

#SPJ4