What is contact with the ball by another player called in volley ball

Answers

Answer 1

A contact with the ball by another player on the same team after a teammate has made initial contact with the ball is called a double hit in volleyball.

A spike is a powerful and aggressive attack in volleyball, designed to score a point by hitting the ball with force and precision over the net and into the opponent's court.

When a player on a team makes contact with the ball, the next player on the same team must not touch the ball consecutively without an opponent's touch in between. If this happens, it is called a double hit or illegal hit, and the opposing team is awarded a point. However, there are certain exceptions, such as if the two consecutive touches are made by different parts of the same player's body or if the ball is touched by two players simultaneously.

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Related Questions

A box is being pushed to the right with a force of 300 Newton’s, and to the left with a force of 400 Newton’s. What is the magnitude of the net force on the box?

Answers

100 Newtons (to the left)

Electrons are important to electric current because they are able to (2 points)
O a carry a positive charge with them as they are transferred from one atoſ to the next creating electric current

change from a positive charge to a negative charge when transferred from the one atom to the next as the atom becomes an ion
Oc move from one atom to another; the atom that loses an electron becomes positively charged and the atom that gains an electron
becomes negatively charged
Od
shift from one atom to another creating a change in the charge of the atom from a negative to a positive

Answers

answer: C

Explanation:

move from one atom to another, the atom that loses an electron becomes positively charged and an atom that gains electrons becomes negatively charged

A series circuit has a combination of two resistors, one 7.25 ohm's and the other 4.50 ohm's.
They are connected to a 9-volt battery. What is the equivalent resistance of the circuit?

Answers

Answer:

11.75 ohms

Explanation:

since its series connection

R equivalent = R1 + R2 = 7.25 + 4.5

1. A 500.0 g metal block absorbs 5.875 × 103 J of heat to raise its temperature by 50.0 K. What is the substance? Show your work.
Specific Heats of Selected Substances
Substance
C [J/(kg·K)]
Water (ice)
2,060
Iron
450
Aluminum
897
Gold
130
Copper
385
Silver
235
Ammonia (liquid)
4,700
Water (liquid)
4,180
Water (steam)
2,020
Lead
128

Answers

The name of the substance is silver based on the specific heat capacity value.

What is the specific heat capacity of the substance?

The specific heat capacity of the substance is calculated by applying the following formula for heat capacity.

Q = mcΔθ

where;

m is the mass of the substancec is the specific heat capacity of the substanceΔθ is the change in temperature

c = Q / mΔθ

The specific heat capacity of the substance is calculated as;

c = (5875 J ) / ( 500 g x 50 )

c = 0.235 J/kgK

The substance that has the same specific heat capacity calculated above is silver.

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How does a wheel and axle make work easier?

Answers

The wheel and axle is a simple machine that reduces the friction involved in moving an object, making the object easier to transport. ... Once the object is moving, the force of friction opposes the force exerted on the object. The wheel and axle makes this easier by reducing the friction involved in moving an object.

In addition to reducing friction, a wheel and axle can also serve as a force multiplier, according to Science Quest from Wiley. If a wheel is attached to an axle, and a force is used to turn the wheel, the rotational force, or torque, on the axle is much greater than the force applied to the rim of the wheel.

Which component is transferred between substances in an oxygen-reduction reaction?(1 point)

Answers

Answer:

electrons

Explanation:

You might mean an "oxidation-reduction" reaction, also known as a redox reaction, in which electrons are transferred between chemicals (i.e. the oxidation number changes).

An "oxygen-reduction" reaction is a very specific reaction where oxygen gas is reduced to water or hydrogen peroxide.

Answer:Redox reactions are all around us. In fact, much of our technology, from fire to laptop batteries, is largely based on redox reactions. Redox (reduction-oxidation) reactions are those in which the oxidation states of the reactants change. This occurs because in such reactions, electrons are always transferred between species. Redox reactions take place through either a simple process, such as the burning of carbon in oxygen to yield carbon dioxide (CO2), or a more complex process such as the oxidation of glucose (C6H12O6) in the human body through a series of electron transfer processes.

Explanation:

The energy conversion that causes wind is from
energy in

to
energy in the wind

Answers

In wind, there is an energy conversion from potential energy to kinetic energy.

Potential energy to kinetic energy

Potential energy is energy at a point. Kinetic energy refers to energy that is motion. Wind refers to air in motion. This implies that wind possesses kinetic energy.

Ultimately, we arrive at the fact that when we observe wind, there is an energy conversion from potential energy to kinetic energy.

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S
6
Electric Pencil
Sharpener:
Moving electrons cause the
blades to spin.
Game Controller:
The gamer manually
manipulates the joystick and
the movements are translated
into electrical impulses that
travel to the gaming system
through the wires.
→>

Answers

An electric pencil sharpener is a small motorized appliance for sharpening or refreshing the points on lead pencils.

An electric pencil sharpener is a small motorized equipment for polishing or fresh the factors on lead pencils. Within the hollow, a small electric powered motor turns a blade meeting at high velocity. The blades shave wooden and lead from the pencil's cease, bringing it to some extent.

The old-fashioned pencil sharpeners which are established to the wall and cranked through a manage are an instance of a compound system that is composed  simple machines: the wheel and axle and a wedge.

You could sharpen colored pencils in an electric sharpener, however make certain to be very mild with your pencils and often easy your sharpener to put off any wax increase. If performed improperly, sharpening your colored pencils in an electric sharpener can harm each your pencils and your sharpener.

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Which three rocky planets have atmospheres

Answers

Venus, Earth, and Mars
Hope that helps
Venus Earth and Mars

what kind are ray diagram is this. pls identify it

what kind are ray diagram is this. pls identify it

Answers

Letter A is the plane surface

Letter B is the incident ray

Letter C is the reflected ray.

What are the terms of the ray diagram?

The terms of the ray diagram is illustrated as follows;

(i) This arrow indicates the incident ray, which is known as the incoming ray.

(ii) This arrow indicates the normal, a perpendicular line to the plane of incidence.

(iii) This arrow indicates the reflected ray; the out going arrow.

(iv) This the angle of incident or incident angle.

(v) This is the reflected angle or angle of reflection.

Thus, based on the given letters, we can match them as follows;

Letter A is the plane surface (surface containing the incident, reflected rays)

Letter B is the incident ray

Letter C is the reflected ray.

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I NEED THIS ANSWERED ASAP WITH THE RIGHT ANSWER
A bicycle with a 15 kg mass is easily stopped when a force of 60 N is applied. How much force would be needed to stop the bicycle if the time allowed to stop the bike was doubled?

Answers

Answer:

Going downhill at a steady speed, the forces along the direction of motion are:

net force = m * a = 0

W * sin(7) - Fdrag = 0

so Fdrag = m * g * sin(7) where m=62.kg and g=9.8m/sec^2

Explanation:

Hi can someone help me please ,Let d= 1 for second part

Hi can someone help me please ,Let d= 1 for second part

Answers

\(\begin{gathered} \text{blank}1\colon\frac{1}{4}F_e \\ \text{.} \\ \text{.} \end{gathered}\)

2)

\(F=2.3097\cdot10^{48}\text{ Newtons}\)

Explanation

the electrostatic force between two forces is given by:

\(\begin{gathered} F=k\frac{q_1q_2}{d^2_{}} \\ where\text{ } \\ k\text{ is a constant}(in\text{ this case we n}eed\text{ asume k=1)} \\ q_1\text{ is the charge 1} \\ q_2\text{ is the charge }2 \\ \text{and d is the distance betw}en\text{ them} \end{gathered}\)

then, complete the table we need to use this equation

where

\(F=k\frac{q_1q_2}{d^2_{}}\)

k, q1 and q2 are ginven in the table, so

Step 1

Let

\(\begin{gathered} charge_1=\frac{1}{4} \\ charge_2=1 \\ \text{distance}=1 \end{gathered}\)

so,replace

\(\begin{gathered} F=k\frac{q_1q_2}{d_{}} \\ F=1\frac{\frac{1}{4}\cdot1}{1_{}}=\frac{1}{4} \end{gathered}\)

hence, for tha row

\(\begin{gathered} \frac{1}{4}F_e \\ \end{gathered}\)

Step 2

now, do the same for the next Fe, so

b)Let

\(\begin{gathered} charge_1=1 \\ charge_2=\frac{1}{2} \\ \text{distance}=1 \end{gathered}\)

so,replace

\(\begin{gathered} F=k\frac{q_1q_2}{d_{}} \\ F=1\frac{1\cdot\frac{1}{2}}{1_{}}=\frac{1}{2} \end{gathered}\)

hence, for tha row

\(\begin{gathered} \frac{1}{2}F_e \\ \end{gathered}\)

Step 3

now, do the same for the next Fe, so

c)Let

\(\begin{gathered} charge_1=1 \\ charge_2=\frac{1}{4} \\ \text{distance}=1 \end{gathered}\)

so,replace

\(\begin{gathered} F=k\frac{q_1q_2}{d_{}} \\ F=1\frac{1\cdot\frac{1}{4}}{1_{}}=\frac{1}{4} \end{gathered}\)

hence, for that row

\(\begin{gathered} \frac{1}{4}F_e \\ \end{gathered}\)

Step 4

now, do the same for the next Fe, so

c)Let

\(\begin{gathered} charge_1=\frac{1}{2} \\ charge_2=\frac{1}{2} \\ \text{distance}=1 \end{gathered}\)

so,replace

\(\begin{gathered} F=k\frac{q_1q_2}{d_{}} \\ F=1\frac{\frac{1}{2}\cdot\frac{1}{2}}{1_{}}=\frac{1}{4} \end{gathered}\)

hence, for tha row

\(\begin{gathered} \frac{1}{4}F_e \\ \end{gathered}\)

Step 5

now, do the same for the next Fe, so

c)Let

\(\begin{gathered} charge_1=\frac{1}{8} \\ charge_2=\frac{1}{4} \\ \text{distance}=1 \end{gathered}\)

so,replace

\(\begin{gathered} F=k\frac{q_1q_2}{d_{}} \\ F=1\frac{\frac{1}{8}\cdot\frac{1}{4}}{1_{}} \\ F=1\frac{\frac{1}{32}}{1_{}}=\frac{1}{32} \end{gathered}\)

hence, for that row

\(\begin{gathered} \frac{1}{32}F_e \\ \end{gathered}\)

Step 6

find the electrostastic force betweeen electrons

let

\(\begin{gathered} q_1=q_2=-\text{1}.602\cdot10^{19}\text{ C} \\ k=9\cdot10^9\frac{Nm^2}{C^2} \end{gathered}\)

as the distance is not give, let's use

distance =1

replace in the formula

\(\begin{gathered} F=k\frac{q_1q_2}{d_{}} \\ F=9\cdot10^9\frac{Nm^2}{C^2}\frac{(^2-\text{1}.602\cdot10^{19}C)}{1_{}} \\ F=2.3097\cdot10^{48}\text{ N} \end{gathered}\)

therefore, the electrostaic force is

\(F=2.3097\cdot10^{48}\text{ Newtons}\)

I hope this helps you

How will the speed of a sound wave change if the temperature of the medium rises? a. the speed will increase.b. the speed will decrease. c. the speed will not change. d. the speed will initially increase and then return to its earlier value.

Answers

The speed of a sound wave will increase if the temperature of the medium rises. (A)

Temperature affects the density of the medium through which a sound wave travels, which modifies the speed of sound. Put simply, the speed of sound in a given medium will increase as its temperature increases. Since temperature affects the speed of sound, the wavelength also varies. The wave's frequency doesn't change when it moves from one place to another. Since the speed of sound is proportional to the product of the wavelength and the frequency, a change in temperature will cause a shift in the wavelength of sound waves even if the frequency stays the same.

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A proton (mass 1.67×10−27kg, charge +e=+1.60×10−19C) follows a path from point B to point A. If its speed at B is 3.00×105m/s, what is its speed at A?

Answers

The speed of the proton at point A can be determined using the principle of conservation of mechanical energy. The speed at point A is approximately 6.24 × 10^5 m/s.

According to the principle of conservation of mechanical energy, the sum of kinetic energy and potential energy remains constant in the absence of external forces. At point B, the proton possesses only kinetic energy, given by KE = (1/2)mv^2, where m is the mass of the proton and v is its speed.

As the proton moves from point B to point A, it gains potential energy due to the electric field. Therefore, the total mechanical energy is conserved. At point A, the proton's potential energy is maximum, and its kinetic energy is minimum. By equating the initial and final mechanical energies, we can find the speed at point A.

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a rocket blasts off. in 10.0 seconds it's at 10,000 ft, traveling at 3600 mph. assuming the direction is up, calculate the acceleration. (hint: the rocket is not under constant acceleration)

a) 5280 ft/s^2

b) 528 ft/s^2

c) 100 ft/s^2

d) 200. ft/s^2

Answers

If a rocket blasts off. in 10.0 seconds it's at 10,000 ft, traveling at 3600 mph. assuming the direction is up, the acceleration of the rocket is 528 ft/s². T

The correct answer is option (b)

How do we calculate?

a = Δv / Δt

a =  acceleration

Δv =  change in velocity

Δt =  change in time.

1 mile = 5280 feet

1 hour = 3600 seconds

3600 mph = 3600 * 5280 ft / 3600 s = 5280 ft/s

Therefore , a = Δv / Δt substituting these, we have:

a = Δv / Δt = (5280 ft/s - 0 ft/s) / 10.0 s

a= 528 ft/s²

In conclusion, the acceleration of the rocket is 528 ft/s²

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A positive charge of 0.00033 C is 25 m from a negative charge of 0.00017 C. What is the force of one of the charges due to the other charge in units of Newtons

Answers

The  electrostatic force between the two charges is attractive  force and the magnitude of this electrostatic force is 0.808 N.

Electrostatic force between the two charges

The electrostatic force between the two charges is calculated by applying Coulombs' law as follows;

F = kq₁q₂/r²

where;

k is Coulomb's constantq₁ and q₂ are first and second charge respectivelyr is the distance of separation

F = (9 x 10⁹ x 0.00033 x 0.00017)/(25²)

F = 0.808 N

Thus, the force of one of the charges due to the other charge is 0.808 N.

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what happens to the temperature of the gas during an isobaric expansion?

Answers

With an increase in gas volume, the gas's temperature must also rise. Temperature and volume changes result in work and an internal energy shift.

An illustration of an isobaric process

Boiling water into steam or freezing water into ice are two examples of isobaric processes. A gas either expands or contracts during the process to maintain constant pressure, and as a result, the net work done by the system or on the system is determined.

What does "isobaric vs. adiabatic" mean?

An adiabatic process where no heat is added to or removed from the system. an isobaric process, in which there is no change in the pressure of the system. the system's volume remains constant throughout an isochoric process.

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a hair breaks under a tension of 1.2 n. what is the diameter of the hair? the tensile strength is 2.2 ✕ 108 pa.

Answers

The diameter of the hair is approximately 3.12 micrometers.

To find the diameter of the hair, we can use the formula for tensile strength:

Tensile strength = Force / Area

We know that the tension force is 1.2 N and the tensile strength is 2.2 ✕ 108 Pa. We can rearrange the formula to solve for the area (which will give us the cross-sectional area of the hair):

Area = Force / Tensile strength

Substituting the values we have:

Area = 1.2 N / 2.2 ✕ 108 Pa

Area = 5.45 ✕ 10^-9 m^2

Now, we can use the formula for the area of a circle to find the diameter:

Area = π/4 ✕ diameter^2

Solving for diameter:

diameter = √(4 ✕ Area / π)

Substituting the value we found for the area:

diameter = √(4 ✕ 5.45 ✕ 10^-9 / π)

diameter = 3.12 ✕ 10^-6 m

Therefore, the diameter of the hair is approximately 3.12 micrometers.

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Which statement accurately describes planetesimals?

A. They are the origins of planets.
B. They formed from ice and rocks.
C. They were created during the big bang.
D. They contain 98% of matter in the solar system

Answers

Answer:

B

Explanation:

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i would say b as the answer

Converting Units!! Help please show work thank you !!!!

Converting Units!! Help please show work thank you !!!!

Answers

Answer: 5. 9000 meters

6. 0.12626 miles

7. 26.78 meters

8. 1 mile per minute

9. 468 km per hour

Explanation:

5. 1000 m=1 km

9 km * 1000 m/1 km=

9 * 1000/1 = 9000 meters

6. 63360 inches = 1 mile

8000 inches * 1 mile/63360 inches=

8000/63360=0.12626 miles

7. 100 cm=1 m

2678 cm * 1 m/100 cm=

2678 * 1/100=

2678/100=26.78 meters

8. 60 minutes=1 hour

60 mph * 1 hour/60 minutes=

60 * 1/60=1 mile per minute

9. 1000 m=1 km

1 hour=60 minutes

1 minute=60 seconds

60 seconds * 60 minutes/1 hour=

60 * 60/1=3600 seconds

130 meters * 3600 seconds/1 second=

130 * 3600/1=468000 meters per hour

468000 m* 1 km/1000 m=

468000 * 1/1000=468 km per hour

how does an a.c generator work?​

Answers

The coil through which current flows in an AC generator is normally set, while the magnet travels. The magnet's south and north poles cause the current to flow in opposite directions, resulting in an alternating current.

Answer quick!!! (Edge 2021)
Haley noticed a small spot on her skin that turned out to be skin cancer. Which treatment is her doctor most likely to use?
A) Brachytherapy
B) Superficial external beam radiation therapy
C) Radiopharmaceuticals
D) High Intensity Focused Ultrasounds

Answers

Answer:
B) Superficial External bean Radiation Therapy.

Explanation:

Surgery, radiation, chemotherapy and hormone therapy can all be used to relieve signs and symptoms. Medications may relieve symptoms such as pain and shortness of breath. Palliative treatment can be used at the same time as other treatments intended to cure your cancer.

The treatment most likely to use is Superficial External bean Radiation Therapy. Then the correct option is B.

What is the electromagnetic spectrum?

The electromagnetic spectrum consists of the range of all types of EM radiation. Radiation is a packet of energy that travels and spreads out.

It has radio waves, infrared waves, visible light waves, ultraviolet rays, and microwaves.

They possess high energy even to penetrate deep within the material. the electromagnetic spectrum has a longer wavelength and less frequency.

Haley noticed a small spot on her skin that turned out to be skin cancer.

Surgery, radiation, chemotherapy, and hormone therapy can all be used to relieve signs and symptoms.

Medications may relieve symptoms such as pain and shortness of breath. Palliative treatment can be used.

The treatment most likely to use is Superficial External bean Radiation Therapy.

Then the correct option is B.

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a force of 2N exerted on a block causes it to accelerate at 4m/s^2 over a frictionless surface. calc the mass of the block​

Answers

F=ma
2= m(4)
2/4=m
mass=0.5 kg


Work done= ________ transferred

Answers

Answer:

Work done= Energy transferred

Explanation:

Work is the transfer of energy. In physics we say that work is done on an object when you transfer energy to that object. If you put energy into an object, then you do work on that object (mass).

1. Amplitude, loudness, volume, dynamics, and intensity are related but distinct terms. How are they different?

Answers

Amplitude is a measure of the size of sound waves. It depends on the amount of energy that started the waves. Greater amplitude waves have more energy and greater intensity, so they sound louder. ... The same amount of energy is spread over a greater area, so the intensity and loudness of the sound is less.

HELP STUCK IN PHYSICS 100PTS!!!
A small piece of putty of mass 27 g and
negligible size has a speed of 2.2 m/s. It makes
a collision with a rod of length 5 cm and mass
78 g (initially at rest) such that the putty hits
the very end of the rod. The putty sticks to
the end of the rod and spins around after the
collision; the putty-rod center of mass CM has
a linear velocity v and an angular velocity ω
about the CM.
(a)What is the angular momentum of the system relative to the CM after the collision?
The rod has a moment of inertia equal to (1/12)MR^2
about its center of mass; consider
the piece of putty as a point mass. Assume
the collision takes place in outer space where
there is no gravitational field and no friction.
Answer in units of kg · m2
/s.
(b)What is the system’s angular speed about the
CM after the collision?
Answer in units of rad/s.
please help I'm so confused :(

HELP STUCK IN PHYSICS 100PTS!!!A small piece of putty of mass 27 g andnegligible size has a speed of

Answers

Assume: This collision takes place in outer space where there is no gravitational field and no friction. A small piece of putty of mass 31 g and negligible size has a speed of 2.5 m/s. It makes a collision with a rod of length 3 cm and mass 83 g (initially at rest) such that the putty hits the very end of the rod. The putty sticks to the end of the rod and spins around after the collision. After the collisions the center-of-mass has a linear velocity V and an angular velocity ω about the center-of-mass “+ cm”. What is the velocity V of the center-of-mass of the system after the collision? Answer in units of m/s.  Icm = 1/12 MR^2 Ipm = MR^2 The Attempt at a Solution First I said that that the moment of inertia for the system is I=1/12(M+m)R^2 ("M" being the mass of the rod and "m" being the mass of the putty) Then using conservation of angular momentum i got: mR^2w = (R^2/12)(M+m)w substituting the respect v's (and Rs) in for w i got: mv1R = (R/12)(M+m)v2 then v2 = 12mv1/(M+m) plugging in my numbers i got [12(31)(2.5)]/[(31+83)] = 8.16 m/s

A helicopter flies for 80 miles. then turns and flies at a heading of 60°for 40 miles.What is the magnitude and direction of the net displacement of the helicopter.Include a drawing​

Answers

Answer:

Please find attached the motion of the helicopter (drawn to scale) showing the magnitude and the direction of the net displacement of the helicopter obtained by measurement to be 105 miles and 19° respectively

By calculation, the magnitude of the net displacement is approximately 105.83 miles and the direction of the net displacement is approximately 19.1066°

Explanation:

The parameters of the motion of the helicopter are;

The distance the helicopter flies before turning = 80 miles

The distance the helicopter then turns and flies = 40 miles

The direction the helicopter turns = 60°

Therefore, we have;

The total length the helicopter flies in the original direction = The component of the length of the 40 mile flight that is in the original direction + The distance the helicopter flies before turning

∴ The total length the helicopter flies in the original direction = 40 × cos(60°) + 80 = 20 + 80 = 100

The total length the helicopter flies in the original direction = 100 miles

The component of the 40 mile flight that is perpendicular to the original direction = 40 × sin(60°) = 40 × √3/2

The magnitude of the net displacement = √(100² + (40×√3/2)²) ≈ 105.83

The magnitude of the net displacement ≈ 105.83 miles

The direction of the net displacement = tan⁻¹((40 ×√3/2)/(100)) ≈ 19.1066°

The direction of the net displacement ≈ 19.1066°.

A helicopter flies for 80 miles. then turns and flies at a heading of 60for 40 miles.What is the magnitude

Suppose you graphS i n open parentheses theta subscript 1 close parenthesesVs.S i n open parentheses theta subscript 2 close parenthesesand get a slope m = 0.413. If the second material is air (n2 = 1.0003), use equation 2 in the manual to calculate n1.
n1 = 1
n1 = 2.42
n1 = 1.46
n1 = 1.47
n1 = 1.49
n1 = 0.413

Answers

The equation mentioned in the manual is:

m = (n2/n1) * (cos(theta1)/cos(theta2))

n1 = 2.42

What is the value of n1 if the slope obtained from the graph of sin(theta1) vs. sin(theta2) for two materials (one of which is air with n2 = 1.0003) is m = 0.413, according to equation 2 in the manual?

The equation mentioned in the manual is:

m = (n2/n1) * (cos(theta1)/cos(theta2))

where m is the slope obtained from the graph of sin(theta1) vs. sin(theta2), n1 and n2 are the refractive indices of the two materials, and theta1 and theta2 are the angles of incidence and refraction, respectively.

In this problem, we have n2 = 1.0003 (since the second material is air). We also know that sin(theta1) = sin(theta2), since the graph is of sin(theta1) vs. sin(theta2). Therefore, cos(theta1) = sqrt(1-sin^2(theta1)) = sqrt(1-sin^2(theta2)) = cos(theta2).

Substituting these values into the equation above, we get:

0.413 = (1.0003/n1) * 1

Simplifying this expression, we get:

n1 = 1.0003/0.413 = 2.42

Therefore, the correct answer is n1 = 2.42.

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For the population of objects in the figure, suppose we measure another feature called Color with the following characteristics:
• In the population of elements with Size equal to "Small", the proportion of elements with Color equal to "Blue" is 0.5 and the proportionof elements with Color equal to "Red" is 0.5.
• In the population of elements with Size equal to "Medium", the proportion of elements with Color equal to "White" is 0.5 and the proportion of elements with Color equal to "Red" is 0.5.
• In the population of elements with Size equal to "Medium", the proportion of elements with Color equal to "White" is 1.
1. In the entire population, what is the distribution of Color?
2. What is the proportion of elements in the entire population with Color values equal to "Blue" and Size values equal to "Small"?
3. In the subpopulation with Size equal to "Medium", would it have been possible for the proportion of elements with Color equal to "Red" to be 0.75?

Answers

1. The distribution of Color in the entire population is as follows: 50% Blue, 25% Red, and 25% White.2. The proportion of elements in the entire population with Color values equal to "Blue" and Size values equal to "Small" is 25%.3. No, it would not have been possible for the proportion of elements with Color equal to "Red" to be 0.75 in the subpopulation with Size equal to "Medium".

In the given information, we are provided with the characteristics of Color in different subpopulations based on Size. The first two points state that in the population with Size equal to "Small," the proportion of elements with Color equal to "Blue" is 0.5 and the proportion of elements with Color equal to "Red" is 0.5. Similarly, in the population with Size equal to "Medium," the proportion of elements with Color equal to "White" is 0.5 and the proportion of elements with Color equal to "Red" is 0.5. However, the third point specifies that in the same population with Size equal to "Medium," the proportion of elements with Color equal to "White" is 1.

From this information, we can conclude that in the entire population, the distribution of Color is as follows: 50% Blue, 25% Red, and 25% White. This means that in the entire population, half of the elements have the Color Blue, while the remaining half is divided equally between Red and White.

Furthermore, to determine the proportion of elements with Color equal to "Blue" and Size equal to "Small," we need to consider that the given information does not provide the proportion of elements with Color Blue in the population with Size equal to "Small." Therefore, we can only assume that the proportion of elements with Color equal to "Blue" and Size equal to "Small" is equal to the proportion of elements with Color equal to "Blue" in the entire population, which is 50%. Hence, the proportion of elements with Color values equal to "Blue" and Size values equal to "Small" is 25%.

Lastly, in the subpopulation with Size equal to "Medium," it would not have been possible for the proportion of elements with Color equal to "Red" to be 0.75.

This is because the given information states that the proportion of elements with Color equal to "Red" in the population with Size equal to "Medium" is 0.5. Therefore, the maximum proportion of elements with Color equal to "Red" in the subpopulation with Size equal to "Medium" can only be 0.5.

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What is concave lens?​

Answers

Answer:

Diverging Lens.

Explanation:

Concave lenses have at least one surface curved inside. A concave lens is also known as a diverging lens because it is shaped round inwards at the centre and bulges outwards through the edges, making the light diverge. They are used to treat myopia as they make faraway objects look smaller than they are.

A concave lens is thinner in the middle than it is at the edges. This causes parallel rays to diverge . They separate but appear to come from a principle focus on the other side of the lens.
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