Plot a graph showing the variation of stopping potential with the frequency of incident radiation for two different photosensitive materials having work Functions [tex]{\omega{1}}[/tex] and [tex]{\omega{2}}[/tex] [tex]{(\omega{1}>\omega{2})}[/tex]. On what factors does the (i) Slope and (ii) intercept of the lines depends?​

Answer:

Color, Radio Waves, Infrared Waves, Ultraviolet waves and Micro waves

Explanation:

you see color every day, radio signals are all around you, thats how you hear music in you car by radio, IR and UV waves both come from the sun that literally touches your skin(sun burn and tanning) and all of the waves come from the sun, you interact with a micro wave every day if you have a micro wave that uses micro waves to cook food in your microwave hence the name

When the bus turns the corner at a constant speed, the velocity of the ball will change and the ball will rolls forward slowly.

The speed of an object is defined by magnitude only while the velocity of an object is defined by both magnitude and direction.

Suffice it to say that when an object is moving at a constant speed changes direction, its velocity will change.

The velocity of the ball can be determined by modelling the speed of the car in the bend or corner.

v = √μrg

where;

Since the velocity of the bus changes, the velocity of the ball will change.

Thus, when the bus turns the corner at a constant speed, the velocity of the ball will change and the ball will rolls forward slowly due to magnetic force acting as resistive force.

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Your scope's ocular lenses have a magnification of 10X. Magnification typically falls between 10x and 1,000x, with some versions even going up to 2000x.

Magnification refers to the image's size in relation to the item that produced it.

The ratio of image length to object length, measured in planes perpendicular to the optical axis, is referred to as linear magnification.

For imaging, optical microscopes combine ocular and objective lenses. The sum of the magnifying powers of the individual lenses produces the observation magnifying power.

This typically falls between 10x and 1,000x, with some versions even going up to 2000x.

Hence, the ocular lenses of your scope are 10X magnified and magnification usually ranges from 10x to 1,000x, while some versions can reach 2000x.

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Explanation:

it's 5 + 5 + 5 + 12 + 5 x 7 x 7 7+ 8 5+6+ +8 +9 + 9 5

Answer:

Hi,

    I can't tell what it says where you have written 'with the horizontal giving ____'.

I am unable to tell what the word after 'giving' is. Please ix it ASAP.

Thank you

Explanation:

Answer:

Hello is it possible if you can explain what we are supposed to detail and I can't read what the photo says it is a jumble of words?

Explanation:

Final velocity be v

According to first equation of kinematics

Since the direction of the needle depends on the proximity of the magnet thus this test alone is insufficient to determine the stronger magnet.

A magnetic field refers to the region where the effect of a magnet is felt. The magnetic field can be observed by the use of a compass.

Now, we know that the closer the magnet is to the compass, the greater the deflection hence this test alone is insufficient to determine the stronger magnet.

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The efficiency of steam engine is  26.66 %.

The efficiency is defined as the work done by the engine divided by the heat supplied.

Work done is the difference between the heat supplied and heat rejected.

So, efficiency η = (Qs -Qr) / Qs

Given is the heat supplied Qs = 225 Joules and heat rejected Qr =285 . then the work done is

W = 225 -225 = - 60 Joules

Efficiency η  = 60/225 x 100%

η = 26.66 %

Thus, the efficiency of the steam engine is  26.66 %.

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Answer:

A

Explanation:

Finding Gravitational Potential Energy :

GPE = mass x gravitational acceleration x height

Finding Kinetic Energy :

KE = 1/2 x mass x (velocity)²

Hence, option A is correct.

1. The light phenomena happen due to the refraction of light upon hitting the small crystals that make up cirrus or cirrostratus clouds is called Sundogs.

2.A light phenomena which are formed when light passes through clouds and strikes the ice crystals in them is called Halos.

3.A light phenomenon formed from the combination of several light properties like refraction, reflection, and dispersion is Rainbow.

4.  Rainbow are created after a rain shower and Sun light.

5. A visible accumulations of tiny water droplets or ice crystals.

in the Earth’s atmosphere are called Clouds.

6. There are seven colors in a rainbow.

7. The kind of rainbows are formed when light strikes small raindrops with almost the same size are Supernumerary rainbows.

8.The kind of rainbows are formed when two inner reflections are done instead of one; this causes the reversal of colors in a secondary rainbow in comparison to a primary rainbow are Secondary rainbows.

9. A reflective surface that is curved inward and away from the light source is concave mirror.

10. The kind of mirror are curved outward like the bottom

of a spoon is convex mirror.

When a light strikes on a shiny surface, it reflects back the light ray in the same medium. The phenomenon is called reflection and the ray is called the reflected ray.

Thus, all the questions are answered.

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Storm weather likely happens in the town when the air masses meet because of difference of temperature and humidity of both air masses.

When air masses move by wind, they carry different weather conditions from the weather conditions of other region. This difference in weather conditions can create a severe storm.

So we can conclude that Storm weather likely happens in the town when the air masses meet because of difference of temperature and humidity of both air masses.

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The radial acceleration of the tip of this hand is 0.274 cm/s². The answer is expressed in centimeters per second squared.

The rate of change of velocity with respect to time is known as acceleration. According to Newton's second law, the eventual effect of all forces applied to a body is its acceleration.

The radial acceleration of the tip of this hand is found as;

[tex]\rm \omega = \frac{2 \pi}{60} \\\\ a_r= \omega^2r\\\\ a= (\frac{2\pi}{60} )^2\times 25\\\\a=0.274 \ cm/s^2[/tex]

Hence,the radial acceleration of the tip of this hand is 0.274 cm/s²

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The solids whose particles occur in a definite pattern are called crystaline solids.

The term crystalline solid has to do with the type of solid in which the atoms that components that make up the solid are all in definite positions and occur in a regular repeating pattern.

The particles of a solid are found in fixed positions. The solids whose particles occur in a definite pattern are called crystaline solids.

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a. Remain in a fixed position.

b .  Crystalline solids

Some properties of solid are:

The properties of crystalline solid

Hence , The particles of a solid are  in fixed positions.

The arrangement of atoms in a solid causes it to have a definite are called crystalline solids.

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Answer:

413

Explanation:

first i divided 310 by 6 which equals 51.66 and then i times it by 8 which equals 413.33 and you perbulby are going to round ot so it would by just 413

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The approximate area of the trapezoidal opening allow wind to pass through is 1575 m².

The area of the trapezium is the product of height and mean of the top and bottom side of trapezium.

Given is the height h = 35m, the base a =40 m and top b = 50m, then the area of the trapezium is

A = (a +b / 2) x h

Substitute the value into the expression, we get

A = (40 +50/2) x 35

A = 1575 m²

Thus, the approximate area of the trapezium is 1575 m².

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The pendulum loses energy through these

When you forces it to oscillation then the amplitude increases friction decreases but later on they comes back to their places so energy is lost in terms of heat .

#Part B

There is energy loss so this part is of no use

Taking into account the definition of speed, the average speed of the car in the trip is 57.14 [tex]\frac{miles}{hour}[/tex].

Speed is a physical magnitude that relates the displacement of an object and the time it takes to make this change in position.

So, the speed can be defined as the amount of space traveled per unit of time with which a body moves and can be calculated using the expression:

[tex]speed=\frac{displacement}{time}[/tex]

Speed has units of [tex]\frac{distance}{time}[/tex], such as [tex]\frac{meters}{second}[/tex] or [tex]\frac{miles}{hour}[/tex].

In this case, you know that:

Replacing in the definition of speed:

[tex]speed=\frac{200 miles}{3.5 hours}[/tex]

speed= 57.14 [tex]\frac{miles}{hour}[/tex]

Finally, the average speed of the car in the trip is 57.14 [tex]\frac{miles}{hour}[/tex].

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Answer:

1) Oxygen, It is made as a by-product of photosynthesis. it is used for breathing.

2) Gums, It is a degradation product of cells. It is used in cosmetics, pharmaceuticals, etc.

3) Latex, It is made from the sap of rubber trees. It is used in the manufacture of rubber products.

Explanation: Hope it helps you:))))

Have a good day

The work done on a body when it is moved is  125J

It states that the Work done in moving a body is equal to the change in kinetic energy of the body

Kinetic energy = 1/2 mv²

Given is a body of mass m = 6kg, moving distance d =25 m in time t=5s.

Final Velocity v = 25/5 = 5 m/s

The body is initially at rest, so, final velocity is zero. Then, change in kinetic energy will be

ΔK.E = K.Ef - K.Ei

ΔK.E = 1/2 x 6 x (5)² -0

ΔK.E  =125J

According to work energy theorem, work done is

W = 125J

Thus, the work done on a body when it is moved is 125J.

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The weight must be 288N placed on the end of the spring when it is 2m from the ground.

If an object is lifted, work is done against gravitational force. The object gains energy.

Given is a spring has a spring constant of 48 N/m. The end of the spring hangs 8 m above the ground. The final height of weight above the ground, h =2m

Using Hooke's law, expressed as

Force, F = k (x₂-x₁).

Put the values, we get

F = 48 (8-2)

F = 288 N

This force applied on the spring is equal to the weight placed on the spring.

Weight W= 288N.

Thus, the weight must be 288N.

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Answer:

Erwin Schrödinger developed the quantum model of the atom. What scientific knowledge was necessary for Schrödinger's work? The discovery of the electron.

Explanation:

The period of the function is the inverse of the frequency:

 ⇒ (in other words) [tex]period = \frac{1}{frequency}[/tex]

Since the period is 9.2s:

 [tex]Frequency = \frac{1}{period}=\frac{1}{9.2} =0.11_.Hz[/tex]

Answer: 0.11 Hz

Hope that helps!

Answer:

c

Explanation:

CFCs were found to destroy the important compound in our atmosphere which is called as the Ozone layer.

The CFCs are called as the Chloro Fluoro carbon are the fuels used in the jet flights long time ago.

The ozone layer protects the harmful UV rays coming from the Sun to reach the Earth's surface. This layer was depleted by the use of CFCs which consist of harmful element Chlorine in large amount.

This has developed a hole in ozone layer over Antarctica. Global warming is the greatest consequence of the depletion of ozone layer.

Thus, CFCs found to destroy ozone layer.

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Answer:

30.6 m

Explanation:

Given:

v₀ = 0 m/s

a = 9.8 m/s²

t = 2.5 s

Find: Δy

Δy = v₀ t + ½ at²

Δy = (0 m/s) (2.5 s) + ½ (9.8 m/s²) (2.5 s)²

Δy = 30.6 m

Answer:

Claim: The phases of the Moon progress from new moon to crescent moon, first-quarter moon, gibbous moon, and full moon as the Moon waxes (the amount of illumination is increasing from Earth). As the moon revolves around Earth, its sunlit surface is visible in different portions as it reveals its phases.

 Evidence: As the moon revolves around Earth, different parts of the sunlit surface of the moon can be seen. As a result, the moon's appearance changes from night to night from Earth's perspective. The moon's apparent shape changes, as well as its position in the sky.

Reasoning: Over the course of two weeks, the moon's entire appearance changes, from a bright circle to a circle sliced in half and finally to nothing.

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Answer:

Claim: The phases of the Moon progress from new moon to crescent moon, first-quarter moon, gibbous moon, and full moon as the Moon waxes (the amount of illumination is increasing from Earth). As the moon revolves around Earth, its sunlit surface is visible in different portions as it reveals its phases.

Evidence: As the moon revolves around Earth, different parts of the sunlit surface of the moon can be seen. As a result, the moon's appearance changes from night to night from Earth's perspective. The moon's apparent shape changes, as well as its position in the sky.

Reasoning: Over the course of two weeks, the moon's entire appearance changes, from a bright circle to a circle sliced in half and finally to nothing.

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Answer:

A transistor is a semiconductor device used to amplify or switch electronic signals. Transistors are broadly divided into three types: bipolar transistors (bipolar junction transistors: BJTs), field-effect transistors (FETs), and insulated-gate bipolar transistors (IGBTs).

Explanation:

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After 2.5 seconds of free fall, an item will be moving downhill at a speed of 25 m/s.Option D is correct.

The change of displacement with respect to time is defined as speed. Speed is a scalar quantity. It is a time-based component. Its unit is m/sec.

The given data in the problem is;

t(time)= 2.5 s

u(falling velocity)=0 m/sec

v(striking velocity)=?  (m/sec)

Newton's first equation of motion:

v=u+at

v=u+gt

v=10 × 2.5

v= 25 m/s downward(+ ve taken as downward)

The velocity of an object that has been in free fall for 2.5 s will be 25  m/s downward.

Hence, option D is correct.

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The brothers that want to start selling their drone camera aerial footage have answered the question, what to produce.

The term economic question is a question that evaluates the processes involved in production. These questions are;

In this case, the brothers that want to start selling their drone camera aerial footage have answered the question, what to produce.

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Answer:What to produce

Explanation: