when you look at an apple, its reflected light travels to the eye where the rods and cones absorb the light. this process best illustrates

Answer:

1.0

Explanation:

The smallest possible value for the index of refraction is 1.0.

This talks about how fast light travels through an object by taking note of how much the light is bent, or refracted, as it enters into the material.

The smallest possible value for the index of refraction is 1.0 because the speed of light in any medium is always less than than the speed of light in air or vacuum.

Read more about Refraction here https://brainly.com/question/24319677

Answer:

Using X = sum( x's * mass)/sum( masses)

= [(0)*(6400)+ (-9.5*1000) + (9.5)*(1000) + (9.5)*(1000)]/(6400+1000+1000+1000)

= 1.01 m

Y = sum( y's * mass)/sum( masses)

= [(0)*(6400) + (9.5)*(1000) +(-9.5)*(1000) + (-9.5)*(1000)]/ (6400+1000+1000+1000)

= -1.01 m

Answer:

position 3

Explanation:

in position 3 PE is least as height is least

so KE is most as energy is always conserved

Answer:

A free falling object is an object that is falling under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. ... Free-falling objects do not encounter air resistance.

Explanation:

Answer:

Chemical changes, such as rotting fruit and burning wood, are affected by temperature. More heat and energy causes a faster chemical change.

Explanation:

The best statement that Jacinta can add to her passage is:

Chemical changes, such as rotting fruit and burning wood, are affected by temperature. More heat and energy cause a faster chemical change.

This statement is correct because temperature is a factor that influences the rate of chemical reactions. Higher temperature means more kinetic energy for the molecules, which increases the chances of collisions and bond breaking. This leads to faster chemical changes and new substances being formed. The other statements are either incorrect or irrelevant to the topic of chemical changes.

Answer:The answer is C

Explanation:

Answer:

incompressible and expandable

Hello,

I hope you and your family are doing well!

(a) To find the average acceleration of the dragster, we can use the equation:

average acceleration = (final velocity - initial velocity)/time interval

Plugging in the values from the problem, we get:

average acceleration = (25.8 m/s - 0 m/s)/0.59 s = 43.7 m/s^2

(b) The net force on an object is equal to its mass times its acceleration, so the net force on the dragster during this time interval is:

net force = 893 kg * 43.7 m/s^2 = 38,971 N

(c) To find the horizontal force the seat exerts on the driver, we can use the equation:

force = mass * acceleration

The acceleration of the driver is the same as the acceleration of the dragster, which we found to be 43.7 m/s^2. Plugging this value into the equation, we get:

force = 68 kg * 43.7 m/s^2 = 2970 N

So the seat exerts a force of 2970 N on the driver.

Please give this answer 5 stars and brainliest if you find it helpful.

Happy Holidays!

An electromagnet can be attracted to or repelled by a magnet, depending on the polarity of the two magnets. Option A.

In other words, the only option that is attracted to or repelled by a magnet is an electromagnet.

More on electromagnets can be found here: https://brainly.com/question/17057080

#SPJ1

An electromagnet will be attracted to a magnet.

option A.

A magnet is a material or object that produces a magnetic field. The magnetic field is a force that can attract or repel certain materials, such as iron, nickel, and cobalt.

Magnets have two poles, a north pole and a south pole, which are responsible for their magnetic properties. Like poles of magnets (north-north or south-south) repel each other, while opposite poles (north-south or south-north) attract each other.

A copper wire not carrying current will not be attracted or repelled by a magnet.

Thus, the only correct answer is an electromagnet.

Learn more about magnet here: https://brainly.com/question/26257705

#SPJ1

Nitrogen oxides play a critical role in photochemical smog. They give the smog its yellowish-brown hue. Indoor residential appliances like gas stoves and gas or wood heaters can be significant emitters of nitrogen oxides in poorly ventilated environments.

Therefore , on conclusion i.e. two gases with molecules consisting of nitrogen and oxygen atoms are nitric oxide (NO) and nitrogen dioxide (NO₂). These nitrogen oxides play a part in the development of smog and acid rain, adding to the issue of air pollution.

To know more about photochemical smog

https://brainly.com/question/15635778

#SPJ1

Explanation:

Exoplanets are very hard to see directly with telescopes. They are hidden by the bright glare of the stars they orbit. So, astronomers use other ways to detect and study these distant planets.

Exoplanets are difficult to detect because they are a star 'wobbles' as it orbits the center of mass, changing the wavelength of light it emits.

Answer:

9 m/s

Explanation:

speed = distance ÷ time

27÷3

=9

The minimum time it would take the man to lift forty 15.0 kg boxes to a height of 1.00 m with an average useful power output of 40.0 W is 147 seconds.

The work done in lifting one 15.0 kg box to a height of 1.00 m is given by:

W = mgh = (15.0 kg)(9.80 m/s²)(1.00 m) = 147 J

The work done in lifting forty boxes is:

W_total = (40 boxes)(147 J/box) = 5880 J

The time required to do this work is given by:

t = W_total/P = 5880 J/40.0 W = 147 s

To know more about Work done, here

brainly.com/question/13662169

#SPJ4

Answer:

There is a natural force called gravity between any two objects with mass. The point draws things together, like how the earth's center pulls things in that direction. The group of each object and the separation separating them determine the gravitational force's strength.

We may use the distance formula fallen under gravity to calculate the gravitational field on Planet Euler:

d = 1/2 x g x

�

2

t

2

where

d is the distance dropped,

g is the gravitational acceleration,

t is the length of time it took to fall.

The distance dropped in this instance is 6 feet, and the time required is 4 seconds.

6 = 1/2 x g x

4

2

4

2

Simplifying this equation, we get the following:

6 = 8g

Dividing both sides by 8, we get:

g = 0.75 feet per second squared

Therefore, the gravity on Planet Euler is 0.75 feet per second squared.

Learn more about Gravity from the given link.

https://brainly.com/question/774528

#SPJ1

Answer:

The object will contine to fall, but at a constant velocity.  There will be no more acceleration.

Explanation:  When the force of gravity is equal to the reverse force of air resistance, there will will be no net force on the falling obect.  F = ma, and F (net) = 0.  It will continue at the same speed until those forces become imbalanced again (such as when the force pushing up from the ground is greater than the force of gravity pulling it down).  The metric term for this sudden resistance is "crash/bang/clunk/yieouch."

To verify that both \(y1(t)=1-t and y2(t)=-t^2/4\) are solutions, we need to substitute them into the differential equation and see if they satisfy it.

The differential equation is not provided in the question, so we will assume that it is a second-order linear homogeneous differential equation with constant coefficients. Such an equation has the form \(y'' + ay' + by = 0\), where a and b are constants.

Let's start with \(y1(t)=1-t\):

\(y1(t) = 1-ty1'(t) = -1y1''(t) = 0\)

Substituting these into the differential equation, we get:

\(y1''(t) + ay1'(t) + by1(t) = 0\)

\(0 + a(-1) + b(1-t) = 0\)

\(b - at = 0\)

This equation holds for any value of t, so y1(t) is a solution.

Now let's try \(y2(t)=-t^2/4\):

\(y2(t) = -t^2/4\)
\(y2'(t) = -t/2\)

\(y2''(t) = -1/2\)

Substituting these into the differential equation, we get:

\(y2''(t) + ay2'(t) + by2(t) = 0\)

\((-1/2) + a(-t/2) + b(-t^2/4) = 0\)

\(t^2b/4 - at/2 - 1/2 = 0\)

Multiplying by 4 and rearranging, we get:

\(t^2b - 2at - 2 = 0\)

This is a quadratic equation in\(t^2\), which means it has two solutions. Since we want to show that y2(t) is a solution for any value of t, we need to show that both solutions are valid. We can do this by using the quadratic formula:

\(t^2 = (2a ± sqrt(4a^2 + 8b))/2b\)

\(t^2 = a ± sqrt(a^2 + 2b)/b\)

Since a and b are constants, this formula holds for any value of t. Therefore, both solutions are valid, and y2(t) is a solution.

In conclusion, we have verified that both \(y1(t)=1-t and y2(t)=-t^2/4\) are solutions to the differential equation.

To know more about differential equation click here:

https://brainly.com/question/14620493

#SPJ11

Answer:

Positive work is said to be done when the force acting on a body produces a displacement in the direction of the force. Negative work is said to be done when the force acting on a body produces a displacement opposite to the direction of the force

Explanation:

When the displacement of the body the in the direction of the force then the work done is positive. For example :- a man pushing a car in a straight path.

When the displacement is in a direction opposite to the direction of the force then the work done is said to be negative. For example :- work done by the friction.

These eight phases are, in order, new Moon, waxing crescent, first quarter, waxing gibbous, full Moon, waning gibbous, third quarter, and waning crescent.

There are eight total phases of the moon cycle, four primary and four secondary. The primary phases are the new moon, first quarter, full moon, and last area. The secondary phases are waxing crook, waxing phases gibbous, waning crescent, and decrease gibbous

For some tribes, the year carries 4 seasons and starts at a certain season, such as spring or fall. Others compute 5 seasons to a year. Some tribes clarify a year as 12 Moons, while others assigned it 13.

So we can conclude that The Moon then wanes as it passes through the bulging moon, third-quarter moon, crescent moon, and back to the new moon.

Learn more about Moon here: https://brainly.com/question/398659

#SPJ1

Answer:

Potential

Explanation:

hope this helps

The work-energy theorem is a fundamental principle in physics that relates the work done on an object to its change in kinetic energy.

The theorem states that the net work done on an object is equal to its change in kinetic energy:

Net Work = Change in Kinetic Energy

In other words, the work-energy theorem tells us that the work done on an object is equal to the change in its kinetic energy. If work is done on an object, its kinetic energy will change by an amount equal to the work done. Conversely, if the kinetic energy of an object changes, it must be due to work being done on the object.

The work-energy theorem applies to both conservative and non-conservative forces. For conservative forces, the work done depends only on the initial and final positions of the object, and not on the path taken between them.

For non-conservative forces, such as friction, the work done depends on the path taken and may result in a loss of mechanical energy.

The work-energy theorem is a powerful tool for analyzing and solving problems in physics, and it is widely used in many fields, including mechanics, thermodynamics, and electromagnetism.

It allows us to relate the work done on an object to its resulting motion and energy changes, providing a comprehensive picture of the physical system under consideration.

Learn more about work-energy theorem visit this link

https://brainly.com/question/30236175#

#SPJ11

Answer:

Heat is kinetic energy -- the higher the temperature of a substance, the faster and farther its molecules move.

Explanation:

... Conversely, when heat transfers from your beverage to the ice and the temperature of the liquid drops, the molecules in the beverage slow down. When those molecules slow down, their kinetic energy decreases.

Answer:

it may cause a new earth to evaluate over time

We have that  the velocity of the image approaching towards the object is

\(x=3.33m/s\)

From the question we are told

A plane mirror moves towards the object with a velocity of 2m/s and the object itself moves towards the mirror with a velocity of 5m/s. What is the velocity of the image approaching towards the object?

Generally the equation for the velocity of the image  is mathematically given as

\(\frac{1}{f}=\frac{1}{v}+\frac{1}{u}\\\\Therefore\\\\\frac{1}{2}=\frac{1}{x}+\frac{1}{5}\\\\\frac{1}{x}=\frac{1}{2}-+\frac{1}{5}\\\\\frac{1}{x}=0.3\)

\(x=3.33m/s\)

Therefore

the velocity of the image approaching towards the object is

\(x=3.33m/s\)

For more information on this visit

https://brainly.com/question/12595620?referrer=searchResults

The  constructor equation of the geometric optics allows to find the result for the speed of the image is  7 m/s

Geometric optics analyzes the formation of images with different objects, for this it uses the  constructor equation

          \(\frac{1}{f} = \frac{1}{p} + \frac{1}{q}\)

Where f is the focal length, p the distance a to the object and q the distance to the image

In this case we have a plane mirror, a plane object has its radius of curvature at infinity (f = ∞), consequently

          p = q

If we derive this expression with respect to time

         \(\frac{dp}{dt} = \frac{dq}{dt}\)

The speed of the object and the image is the same.

In all these equation is the mirror or lens are considered fixed in space

In this case we have that the object moves towards the mirror at v₀ = 2 m / s and the mirror moves towards the object at \(v_m\) = 5 m / s

To consider the mirror fixed in space, we must find the relative velocity of the object with respect to the mirror; the body approaches the speeds add                

             \(v_{om} = v_o +v_m\)

Where \(v_{om}\) speed of the object with respect to the mirror, v₀ and \(v_m\) are the velocities of the object and the mirror, respectively

         \(v_{om}\) = 5 + 2

         v_{om} = 7 m / s

The speed of the image and the object are equal, therefore the image speed is:

            v = 7 m / s

In conclusion using the  constructor equation allow to find the result for the image speed is 7 m / s

Learn more here: brainly.com/question/3795433

Answer:

Explanation:is the law means that the police are the law

Answer:

1. directly

2. inversely

Explanation:

The relationship between the energy of a photon and its frequency is dictated by another simple equation:

E = hv = hc/λ

where E is the energy in kiloJoules per mole, h is Planck's constant with a value of 6.626 x 10-34 Joule-seconds per particle, λ is the wavelength of light λ in meters,  and c is the speed of light with a constant value of 300 million meters per second. From this equation, it is clear that the energy of a photon is directly proportional to its frequency and inversely proportional to its wavelength. Thus as frequency increases (with a corresponding decrease in wavelength), the photon energy increases and vice versa.

Energy of a photon is directly proportional to frequency, and inversely proportional to wavelength.

Energy is the ability or capability to do tasks, such as the ability to move an item (of a certain mass) by exerting force. Energy can exist in many different forms, including electrical, mechanical, chemical, thermal, or nuclear, and it can change its form

The relationship between the energy of a photon and its frequency is

E = hv = hc/λ

where E is the energy in kiloJoules per mole,

h is Planck's constant with a value of 6.626 x 10-34 Joule-seconds per particle,

λ is the wavelength of light λ in meters,  

c is the speed of light with a constant value of 300 million meters per second.

From this equation, it is clear that the energy of a photon is directly proportional to its frequency and inversely proportional to its wavelength.

To learn more about energy refer to the link:

brainly.com/question/1932868

  #SPJ2

Answer: Use less water

only turn on lights when needed

electrical cars

less gas usage

Explanation:

A block that weighs 42 pounds on Earth would weigh approximately 7 pounds on the moon.

The force of gravity on an object is directly proportional to its weight. In this scenario, we are given that the force of gravity on the moon is one sixth (1/6) of that on Earth.

Weight is the force of gravity acting on an object, and it can be calculated using the formula W = mg, where W is the weight, m is the mass of the object, and g is the acceleration due to gravity.

Since weight is directly proportional to the force of gravity, if the force of gravity on the moon is one sixth of that on Earth, the weight of an object on the moon would be one sixth of its weight on Earth.

Therefore, if a block weighs 42 pounds on Earth, its weight on the moon would be (1/6) * 42 pounds, which is approximately 7 pounds.

To know more about force of gravity, refer here:

https://brainly.com/question/1479537#

#SPJ4

The wavelength will be longer, increasing the diffraction angle.

The separation between two successive wave crests or troughs is known as a wavelength.

Here are some wavelength illustrations: Yellow Light, for instance. All visible light has a wavelength between 400 and 700 nanometers (nm).

Radio waves, light waves, and infrared (heat) waves are examples of electromagnetic radiation that flow through space in distinct patterns.

The symbol for the wavelength in the SI is often the letter m. Additionally, multiples or fractions of a metre are employed when calculating wavelength. The use of exponential powers of 10 is noteworthy when wavelengths are a significant feature.

To learn more about wavelength refer to:

https://brainly.com/question/10728818

#SPJ4

Answer:

Simple Response: The diffraction angle of the waves is approximately equal to the wavelength divided by the gap width. Therefore, increasing the wavelength will increase the diffraction angle.

Explanation: