The stored energy that an object has due to its position, condition, or chemical composition is called

The index of refraction of the gemstone is approximately 1.689, and the speed of light in the gemstone is approximately 1.776 × 10^8 meters per second.

To calculate the index of refraction and the speed of light in the gemstone, we can use Snell's law, which relates the angles of incidence and refraction to the indices of refraction of the two media.

Snell's law states: n1*sin(theta1) = n2*sin(theta2)

Where:

- n1 is the index of refraction of the initial medium (in this case, air)

- theta1 is the angle of incidence in the initial medium

- n2 is the index of refraction of the final medium (in this case, the gemstone)

- theta2 is the angle of refraction in the final medium

We are given:

- Angle of incidence (theta1) = 42.0°

- Angle of refraction (theta2) = 17.9°

We need to find:

- Index of refraction of the gemstone (n2)

- Speed of light in the gemstone

We can rearrange Snell's law to solve for the index of refraction of the gemstone (n2):

n2 = (n1 * sin(theta1)) / sin(theta2)

The index of refraction of air is approximately 1.0003.

Substituting the known values into the equation:

n2 = (1.0003 * sin(42.0°)) / sin(17.9°)

Using a calculator, we can find n2 ≈ 1.689 (rounded to three decimal places).

Now, to calculate the speed of light in the gemstone, we can use the equation:

Speed of light in the gemstone = Speed of light in a vacuum / Index of refraction of the gemstone

The speed of light in a vacuum is approximately 3.00 × 10^8 meters per second.

Speed of light in the gemstone = (3.00 × 10^8 m/s) / 1.689

Using a calculator, we find the speed of light in the gemstone to be approximately 1.776 × 10^8 meters per second.

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Answer:

What element is most likely to form polymers?

Because they contain carbon, polymers are categorized as organic compounds. The most common element found in polymers, besides carbon, is hydrogen. Many polymers are manufactured from feedstock, or starting materials, obtained from petroleum.

Explanation:

jouleeeee is the unit kinetic energy is measured in and kinetic energy formula is 1/2mv (square)

Given data

*The given mass of the person is m = 40 kg

*The value of the acceleration due to the gravity is g = 9.8 m/s^2

(A)

The reading on the scale is calculated when the elevator is stationary is given as

(B)

The formula for the reading on the scale when the elevator is moving up at constant speed is given as

(C)

The formula for the reading on the scale when the elevator accelerates upwards at 5.00 m/s^2 is given as

Substitute the known values in the above expression as

(D)

The formula for the reading on the scale when the elevator accelerates downwards at 5.00 m/s^2 is given as

Substitute the known values in the above expression as

Answer:

7.34 meters

Explanation:

If the entire Kinetic energy is converted to Potential energy

1/2 mv^2 = mgh          didvide both sides by ' m '

1/2 v^2 = gh                 solve for 'h'

1/2 v^2 / g = h              plug in the given values  ,   g = 9.81 m/s^2

1/2 (12)^2 / 9.81 = h = 7.34 m

None of the above is right option for the same. A wave in which particles of the medium undergo a circular motion is known as a Surface wave.

A surface wave is a wave in which the medium's particles move in a circular pattern. Surface waves are neither transverse nor longitudinal. All of the particles in the bulk of the medium travel parallel to and perpendicular to the direction of energy transport in longitudinal and transverse waves, respectively.

Only the particles at the medium's surface move in a circular motion during a surface wave. As one moves farther away from the surface, the mobility of the particles tends to slow down.

Every wave that travels across a medium has its origin. One of the particles was initially displaced somewhere along the medium.

It is typically the first coil on a slinky wave that is moved by a person's hand. The first air particle to vibrate during the creation of a sound wave is often caused by the vocal chords or a guitar string. The particles that are displaced from their equilibrium position at the point where the wave is introduced into the medium always move in the same direction as the vibration's source.

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Answer:

not realy

Explanation:

dancing is a way of exercise and liking a song or you're just happy etc.

The impulse imparted by the tennis player to the ball is 29.7 Ns. The impulse-momentum theorem states that the impulse imparted on an object is equal to the change in momentum of the object.


In this case, the momentum of the ball just before it is hit is zero since it is stationary. The momentum of the ball just after it is hit and reaches a height of 5.50 m can be calculated using the equation p = mv, where p is momentum, m is mass, and v is velocity. Since the ball only moves vertically, its final velocity is zero. Therefore, its initial momentum is equal to its final momentum. The mass of the ball is 58.0 g, which is 0.0580 kg.

The change in momentum is therefore: Δp = p_final - p_initial = 0 - (0.0580 kg * 9.81 m/s^2 * 5.50 m) = -3.2061 Ns. The impulse imparted on the ball is the opposite of the change in momentum, so it is 3.2061 Ns. However, since impulse is a vector quantity, we must also include the direction, which is upward. Therefore, the impulse imparted by the tennis player to the ball is 29.7 Ns upward.

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Answer:

They are inversely proportional with each other. \(R\) ∝ \(\frac{1}{I}\)

Explanation:

By the equation V=IR, assume V is constant.

Since I and R are on the same side,

if I increase, R decreases, or the vice versa.

Answer:

15 units NE

Explanation:

Assuming the coordinate plane is a compass with N being the positive y-axis, we can use the Pythagorean theorem to find the magnitude of the vector. Since the vector is going up by 12 and right by 9 at the same time, it should form a diagonal line, aka the hypotenuse of a triangle. This triangle has both of its leg units as 12, and 9. Pythagorean theorem states that a^2 + b^2 = c^2, that is both of their legs squared is the hypotenuse of the triangle squared. 12^2 + 9^2 = c^2. c = 15. Now that we know the magnitude, let's go back to the quadrants as the compass. Since both units are positive, the vector goes in the positive direction on both sides, which is Quadrant 1. North and East would be the appropriate say for the vector's direction, thus the vector's direction will be 15 units North East.

Based on leah's informal experiment we can say, unbalanced forces from Joey pushing the car causes the car to change direction.

Forces that are opposite in direction and equal in size are termed as balanced forces. Since the car move across the table with constant speed, we can say acceleration is zero and net forece is also zero, until and unless Joey or Leah push the car. To change the direction and speed of the car, a net external force is required to be acted upon the car. A net external force by Joey is an unbalanced force which will change the direction and gives the speed to the car in opposite direction. Hence, it is an unbalanced force applied by the Joey that pushes the car in the other direction. Due to this force car starts to move back to Leah. Without, unbalanced force there will be no change in the direction of the car's motion or speed.

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Both of the below elements, covering a short period of time and having a limited number of characters, are typically associated with climactic plot structure. The correct options are:

c. Covers a short period of time

d. A limited number of characters

This structure focuses on a specific event or conflict that unfolds rapidly and intensifies towards a climax, usually involving a small set of characters. The plot begins closer to the climax, omitting extensive exposition or background information, and often takes place in a restricted locale to maintain a sense of urgency and intensity.

Climactic plot structure refers to a narrative structure that focuses on a condensed timeframe and a limited number of characters. This type of plot structure often unfolds rapidly, with events building up to a climactic moment or turning point. By covering a short period of time and involving a small cast of characters, the climactic plot structure creates a sense of intensity and immediacy in the story, allowing for focused and impactful storytelling. This structure is commonly used in works such as short stories, plays, and films where brevity and concentrated impact are desired.

Therefore, options c and d are correct.

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the magnitude of the magnetic field midway between the two wires is 5.0 × 10−5 T. Hence, option (B) is the correct answer.

Given data:

Two long parallel wires carry currents of 20 A and 5.0 A in opposite directions.

The wires are separated by 0.20 m.The magnetic field midway between the two wires is to be determined.Formula used:

B = (μ₀ * I * i)/(2πd)

Where,B is the magnetic field at the midpoint between two wires,μ₀ is the permeability of free space, which is equal to 4π × 10−7 T∙

m/ I is the current in the first wire, and i is the current in the second wire.d is the separation between the two wires.

Substitute the given values into the above formula,

B = (μ₀ * I * i)/(2πd) = (4π × 10−7 T∙m/A * 20 A * 5 A)/(2π * 0.20 m) = 5.0 × 10−5 T

Therefore, the magnitude of the magnetic field midway between the two wires is 5.0 × 10−5 T. Hence, option (B) is the correct answer.

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Answer:

the correct answer is actually refelcts

Explanation:

Answer:

the answer is Transitional metals

Explanation:

they are hard and have a high density

The answer is;

(A) Akali Metals

Hope this helped.

ANSWER:

2.98 cm

STEP-BY-STEP EXPLANATION:

Given:

Length wire (L) = 6 m

Current (i) = 1.513 A

magnetic field (β) = 4.085 mT = 4.085 x 10^-3 T

Magnetic field at the center of circular coil is given for the following formula:

The total length of wire in the coil is given by:

We replacing:

Therefore, the diameter in centimeters is equal to 2.98 cm

Answer:

mass = 0.14kg

Explanation:

kinetic energy (K.E.) = ( m / 2 ) v^2

where,

m = mass ( kg )

K.E. = kinetic energy ( J )

v = velocity ( m / s )

note that the question does not have a velocity factor in it

but, we are just going to use the speed parameter for velocity since they have the same units ( m / s )

from our question,

m = unknown ( but for solution purposes, we will just call it x)

K.E = 3.10J

v = 6.70 m / s

from our formula,

we substitute our values to have;

3.10 = ( x / 2 ) 6.70^2

3.10 = ( x / 2 ) 44.89

when we open the bracket, 44.98 will multiply with x to give

3.10 = 44.89x / 2

we cross multiply to give us

44.89x = 3.10 ( 2 )

44.89x = 6.20

divide through by 44.89 to give us,

44.89x / 44.89 = 6.20 / 44.89

x = 0.14kg

The arrangement in fig 3.2 balance because, the two conditions of equilibrium for a system under the action of coplanar forces is satisfied.

The arrangement in fig 3.2 balances, because the conditions for equilibrium was met.

Moment is the product of force of a body and it perpendicular distance.

The conditions of equilibrium for a body acting under coplanar forces are

(1) The sum of upward force must be equal to me sum of downward force.

(2) The sun of clockwise moment must be equal to the sum of anti-clock wise moment.

From the diagram,

Hence, the arrangement in fig 3.2 balance because, the two conditions of equilibrium for a system under the action of coplanar forces is satisficed.

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The fraction of the car that is immersed when it floats is approximately 0.29 or 29%.

We first need to understand the concept of buoyancy and how it works. When an object is placed in a fluid, such as water, it experiences an upward force known as buoyancy. This force is equal to the weight of the fluid displaced by the object. If the buoyant force is greater than the weight of the object, the object will float.
In the case of the car, we need to determine the volume of water that is displaced by the car when it floats. This volume is equal to the volume of the car that is submerged in water. We can calculate this volume by dividing the weight of the car by the density of water (1000 kg/m3).

The weight of the car is given as 910 kg. Dividing this by the density of water gives us a volume of 0.91 m3. This means that when the car floats, 0.91 m3 of water is displaced.Now we need to determine what fraction of the car is submerged when it floats. To do this, we need to compare the volume of water displaced by the car to the total volume of the car. The total volume of the car is given as 3.1 m3.

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The length of a simple pendulum with a period on Earth of 2.0 seconds is most nearly 0.99 m.

A basic pendulum is a machine in which the point mass is hung from a fixed support by a light, inextensible string. The mean position of a simple pendulum is shown by a vertical line flowing through a fixed support. The length of the simple pendulum, abbreviated L, is the vertical distance between the point of suspension and the suspended body's centre of mass (when it is in mean position). The resonant mechanism supporting this type of pendulum has a single resonant frequency.

Period of the simple pendulum is given by,

T = 2π√L/g

Given,

T = 2 s

g = 9.8 m/s² ( acceleration due to gravity)

putting values in the equation,

2 = 2π√L/9.8

4=4π²L/9.8

L = 0.99 m

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The molar mass of a compound can be found by adding the molar masses of all of the atoms in the compound.

The molar mass of an atom can be found on the periodic table by looking at the atomic mass listed for that element.

For example, to find the molar mass of water (H2O), we would add the molar masses of two hydrogen atoms (2 x 1.01 g/mol) and one oxygen atom (16.00 g/mol) to get a total molar mass of 18.02 g/mol.

Another way is by finding the molecular formula of the compound, it can be done by analyzing the compound's chemical and physical properties and then using the mass spectrometer to determine the molecular weight.

In conclusion, the molar mass of a compound can be found by adding the molar masses of the atoms in the compound using the atomic masses listed on the periodic table, or by determining the molecular formula of the compound and using a mass spectrometer to find the molecular weight.

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Answer:

by global wind systems that are fueled by energy from the sun.

Explanation:

brainliest

Answer:

468.42572 Wavelength In Metres

Explanation:

Answer:

\(\huge\boxed{\sf Wavelength= 470\ m}\)

Explanation:

Given Data:

Speed of light = c = 3 × 10⁸ m/s (Constant)

Frequency = f = 640 kHz = 6.4 × 10² × 10³ Hz = 6.4 × 10⁵ Hz

Required:

Wavelength = λ = ?

Formula:

λ = c / f

Solution:

λ = 3 × 10⁸ / 6.4 × 10⁵

λ = 0.47 × 10³

λ = 4.7 × 10² m

λ = 470 m

\(\rule[225]{225}{2}\)

Hope this helped!

Answer:

The world would be fine

Explanation:

The X component was 13.4m and the Y component was 19.9m.

define magnitude ?

A crucial question in science is undoubtedly what is magnitude in physics. Magnitude is a term used to describe size or distance. We can connect the amount of the movement to the size and movement speed of the item.

The magnitude of a thing or a quantity is its size. A automobile moves at a quicker pace than a motorcycle, just like in terms of speed. In this situation, the car's speed is greater than the motorbike's. Let's now talk about what magnitude means in physics.

y=m sin(∅)

x=m cos(∅)

y=2+sin(56)=19.89

=19.89 ≈ 19.9m

x=2+cos(56)=13.42

=13.42≈13.4m

The X component was 13.4m and the Y component was 19.9m.

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Answer:  no definite shape (takes the shape of its container)

no definite volume.

particles move in random motion with little or no attraction to each other.

highly compressible.

Explanation:

Gases have three characteristic properties: (1) they are easy to compress, (2) they expand to fill their containers, and (3) they occupy far more space than the liquids or solids from which they form.

Answer: 1. It fills the container it is in  

              2. It can be compressed

Explanation:

Hope it helps?! +

A reduction of the masses of the objects.

Answer:

Which action will decrease the gravitational force between two objects?

A.

Explanation:

Carry On Learning

a. Therefore, the magnitude of the impulse on the hand is 7.0 Ns.

b. Therefore, the magnitude of the average force on the hand from the target is 1400 N.

(a) The impulse on the hand is given by the change in momentum of the hand during the collision. Since the hand comes to a stop, its final momentum is zero. Therefore, the impulse is equal in magnitude to the initial momentum of the hand:

p = mv = (0.70 kg)(10 m/s) = 7.0 Ns

Therefore, the magnitude of the impulse on the hand is 7.0 Ns.

(b) The average force on the hand during the collision can be found by dividing the impulse by the duration of the collision:

F = Δp/Δt

here Δp is the change in momentum and Δt is the duration of the collision. The change in momentum is the same as the impulse, which we found in part (a):

Δp = 7.0 Ns

The duration of the collision is given as 5.0 ms, which we need to convert to seconds:

Δt = 5.0 x \(10^{-3} s\)

Substituting these values into the formula for average force, we get:

F = (7.0 Ns)/(5.0 x \(10^{-3} s\) ) = 1400 N

Therefore, the magnitude of the average force on the hand from the target is 1400 N.

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