all the distances from the curved surface are measured from the:
a) pole
b) centre of curvature
c) focus
d) radius of curvature
plz reply

Answers

Answer 1

Pole is the answer.

Actually when we measure, we use metre scale and thread. But since option doesn't have it, so Pole is the answer . Because all curved surfaces has a pole . So, we can directly measure around it.

Hope it helps you


Related Questions

A tall tree has more chance to break during storm why

Answers

Answer:

yes

Explanation:

because the strong winds and the weight and there are more things to break

Explanation:

A tall tree may have more resistance to the wind since it has more mass ( branches, leaves). That means the wind has more mass to push against. Winds may also be stronger at a higher level. Tall trees have been growing longer and have more chances to have been compromised by insects, animals, fungi and so on. They also have less flexibility since they need to be more rigid to hold up the mass of branches they have.

???????.............please help:)

Answers

Answer:

It is:

0.00477

0.00000301

PLEASE HELP ASAP
Explain how can a ripple tank be used to view wave pattern.

Answers

Answer:

when you push up and down the pencil right in the middle of the water tank. it will produce ripples. If seen at the perfect angle you will observe the waves

Explanation:

0.054x2.33x90............

Answers

0.054×2.33×90=0.11582×90=11.3238

please mark this answer as brainlist

Which structure defines the sulfhydryl functional group?(1 point)

SOH

OH

SH

SH2

Answers

Answer:

the correct answer is

"SH"

hope it helps

have a great day ahead :)

The sulfhydryl functional group is shown by -SH.

The sulfhydryl functional group is known by several other names such as; thiol, mercapto or sulfanyl.

The sulfhydryl functional group has the structure -SH. The sulphur atom bears two lone pairs which is also important in studying the chemistry of this functional group.

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Two forces P and Q acting at a point at an angle have their resultant
(2n + 1)√P2 + Q2 and when at an angle (90° - ),the resultant is(2n - 1)√P2 + Q2.
Show that tan = (n - 1)/( n + 1).

Answers

Answer:

Answer is given in this paper.

                                               Thank You

                                     Please mark me Brainlest.

Prove that the acceleration due to gravity is independent to the mass of the falling body.​

Answers

Answer:

½mv²=mgh

g=½(V²/h)

Explanation:

When an object is held at a height, it posses gravitational potential energy which is mgh, where m= mass, h=height, g=acceleration due gravity

When the object is dropped, the potential energy will be converted to kinetic energy which is ½mv², where V=velocity at which the object moves.

V=∆h/t, ∆h is change in height with respect to time.

½mv²=mgh

Mass cancel out,

g=v²/2h

This implies that g does not depend or is not affected by mass. Hence heavy object and light object will reach the ground at the same time when dropped from the same height. When air resistance is negligible.

ram takes 2 minutes to cover a distance of 600 meter. calculate his speed ​

Answers

Speed = distance/time(in seconds)
2 minutes in seconds is 120, so
600/120= 5 m/s

Does the following word describe a theory, law, or both
“Complex”
A) LAW
B) THEORY
C) BOTH THEORY AND LAW

Answers

Answer:

the answer is b: theory

Explanation:

in science theory can be defined as a scientific idea that uses logic based on wisdom, research, observation, and experience

what is momentum?????​

Answers

Answer:

[tex]momentum \: is \: the \: force \: or \: speed \: of \: the \: movement \\ equation \\ momentum = mass \times change \: in \: velocity \\ thank \: you[/tex]

Between which types of elements do ionic bonds occur, and how do electrons act within the bond?(1 point)

nonmetals and nonmetals, electrons shared

metals and nonmetals, electrons transferred

metals and metals, electrons freely moving

nonmetals and metals, electrons shared

Answers

Answer:

Im pretty sure that its, the metals and nonmetals, electrons transferred.

Between metals and nonmetals, types of elements do ionic bonds occur, and electrons transferred within the bond,therefore the correct answer is option B.

What is an ionic bond?

When two similar or dissimilar atoms form bonds with each other by transferring their valence electron the bond is known as the ionic bond.

The ionic bond is the result of the transfer of the electrons

Ionic bonds are formed between the pair of one electronegative atom and an electropositive atom.

Ionic, covalent, and hydrogen bonds are the three basic types of chemical bonds that are used to generate these chemical compounds from their component atoms.

Ionic bonds are created when electrons are transferred between two bond-forming pairs that can be distinguished by their electronegativity.

Thus, Between metals and nonmetals, types of elements do ionic bonds occur, and electrons are transferred within the bond, therefore the correct answer is option B

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A charge feels a 7.89 x 10-7 N force when it moves 2090 m/s at a 29.4° angle to a 4.23 x 10-3 T magnetic field. What is the amount of the charge?

Answers

We have that the amount of the charge q is

[tex]q=1.8*10^{-7}[/tex]

From the Question we are told that

Force [tex]F=7.89 x*10^{-7}[/tex]

Velocity [tex]V=2090m/s[/tex]

Angle [tex]\theta=29.4[/tex]

Magnetic field [tex]B=4.23 * 10^{-3} T[/tex]

Generally, the equation for Force F is mathematically given by

[tex]F=qVBsin\theta\\\\q=\frac{F}{VBsin\theta}[/tex]

[tex]q=\frac{7.89 x*10^{-7}}{4.23 * 10^{-3} T*sin29.4*2090m/s}[/tex]

[tex]q=1.8*10^{-7}[/tex]

In conclusion

The amount of the charge q is

[tex]q=1.8*10^{-7}[/tex]

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From the question, the given charge moving within the magnetic field would have a value of 1.82 x [tex]10^{-7}[/tex] C.

A charge is either a positively or negatively charged particle. When a charge is moving through a magnetic field, it would experience a force which depends on the amount of the charge, its speed, the magnetic field strength and angle. The force on a charge in a magnetic field can be determined by:

F = qvBSin θ

where: q is the charge, v is its velocity/ speed in the field and θ is the angle of deflection of the charge.

Given that: F = 7.89 x [tex]10^{-7}[/tex] N, v = 2090 m/s, B = 4.23 x [tex]10^{-3}[/tex] T and θ = 29.4°.

Thus, the amount of the charge can be determined by;

q = [tex]\frac{F}{vBsin O}[/tex]

  = [tex]\frac{7.89*10^{-7} }{2090*4.23*10^{-3}* Sin 29.4 }[/tex]

  = [tex]\frac{7.89*10^{-7} }{4.340}[/tex]

q = 1.818 x [tex]10^{-7}[/tex]

q = 1.82 x [tex]10^{-7}[/tex] C

Therefore, the amount of the charge that moved within the magnetic field is 1.82 x [tex]10^{-7}[/tex] C.

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A parachute is driven toward east direction with a speed of 20ms-1. A ball is thrown out with the speed of 4ms-1. What wil be the speed of the ball after it has been thrown out of parachute.

Answers

We have that  the ball after it has been thrown out of parachute is

[tex]V_t=24ms^{-1}[/tex]

From the Question we are told

Parachute Speed [tex]v= 20ms^-1[/tex]

Ball Speed [tex]v= 4ms^{-1}[/tex]

Generally the equation for the resultant speed of the ball  is mathematically given as

[tex]V_t=V_1+v_2\\\\v_t=20+4[/tex]

[tex]V_t=24ms^{-1}[/tex]

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Can aurora be found in other planets?

Answers

Answer:

Yes

Explanation:

Any planet with a sufficiently dense atmosphere that lies in the path of the solar wind will have aurora. It has been discoveres in planets like Jupiter, Saturn, etc.

Answer:

yes

Explanation:

Write an ecosystem report on rain.

Answers

Answer:

Explanation:

kopkpo

Convert the following as instructed:
i.340 cm into m
ii.67 kg into g
iii.2 days into second
iv.86400 second into day

Answers

3.4m
6700g
172800s
1 day

A force of 10N makes an angle of 30 degree with y-axis. The magnitude of X component will be?

Answers

The magnitude of x component is 5N

im offering 100 point to whoever can give me the best advice on boys you possible can. so shoot, tell me everything and anything about it.

Answers

I grew up with boys so I should give you good advice

1. They like confidence. Confidence is like you like the way you look or in work wise. They think it’s attractive


2. They like a loyal person someone who can give them a trust to tell you everything

3. Some guys are just perve.rts so be careful

Last advice is : There is some guys who are out there for you the one that is there for you and he stares at you likes you

What's Centripetal force................

Answers

Answer:

a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving.

Answer:

A centripetal force is a force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.

Different between Atmosphereric Pressure and Liquid Pressure.​

Answers

Answer:

Air pressure or atmospheric pressure is the pressure as the force exerted by the collisions of particles in the air. The key difference between air pressure and liquid pressure is that air pressure allows the gaseous state of matter to be compressible, whereas liquid pressure makes a liquid incompressible

Explanation:

Air pressure or atmospheric pressure is the pressure as the force exerted by the collisions of particles in the air. The key difference between air pressure and liquid pressure is that air pressure allows the gaseous state of matter to be compressible, whereas liquid pressure makes a liquid incompressible

A mother finds her daughter’s mug of hot cocoa on a table an hour after she had been drinking it. As the mother pours out the cocoa, she sees brown solids in the bottom of the mug. How can this be explained?(1 point)

The cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went up.

All dissolved substances will come out of solution over time. If the mother waits long enough, then all of the powder will appear at the bottom of the mug.

The cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went down.

This would only happen if too much cocoa powder was added in the first place, because the solubility should not change.

Answers

Answer:

The cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went down.

Answer:

C

Explanation:

The airplane refuels between City A and continues on to City B. It travels at an average speed of 733.9 km/h. If the trip takes 2.4 hours, what is the flight distance between City A and City B? Answer in km

Answers

Answer:

733.9× 2.4

1761.36

Explanation:

The airplane refuels between city A and continues on to city B. It travels at an average speed of 733.9km/h. If the trip takes 2.4 hours, what is the flight distance between city A and city B?

In which group of elements does tellurium (Te) belong?

(1 point)

alkali metals

metalloids

lanthanides

transition metals

Answers

Answer:

metalloids

Explanation:

Periodic Table

A Periodic table is an arrangement of chemical elements in order of increasing atomic number.

Metalloids:  Metalloids have properties that are midway between metals and non metals

Tellurium is a chemical element with symbol Te and atomic number 52. Classified as a metalloid, tellurium is a solid at room temperature.

Properties

Atomic Mass

127.6u

Oxidation States

+6, +4, -2

Year Discovered

1782

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¿Qué ocurre como consecuencia de las corrientes de convección en la astenosfera?

Answers

Respuesta:En la astenosfera existen lentos movimientos de convección que explican la deriva continental. Además, el basalto de la astenosfera fluye por extrusión a lo largo de las dorsales oceánicas, lo cual hace que se renueve y expanda constantemente el fondo oceánico. :D

Can someone tell me which is which on what i put i dont know what i should put

Answers

I am not great at this so if I’m wrong I’m sorry.

Speed:
Distance per time
40 km/h
A scalar quantity

Velocity:
A vector quantity
20 m/s south
Displacement per time

Which statement describes the relationship between bond strength and the melting and boiling points of a substance? A. As the force between the particles increases, the melting and boiling points also increase. O B. As the force between the particles increases, the melting point decreases and the boiling point increases. O C. As the force between the particles increases, the melting and boiling points decrease. O D. As the force between the particles increases, the melting point increases and the boiling point decreases. SUBMIT​

Answers

Answer:

a

Explanation:

principle of simple Machine​

Answers

Answer:

Effort×Effort distance = load× load distance

Answer:

Renaissance scientist

what is molecular formula give short answer​

Answers

Explanation:

molecular formula consists of the chemical symbols for the constituent elements followed by numeric subscripts describing the number of atoms of each element present in the molecule. The empirical formula represents the simplest whole-integer ratio of atoms in a compound.

Answer:

The symbollic representation of a molecule of an element or a compound present in a molecule is called molecular formula.

For example: molecular formula of sodium chloride is NaCl.

A car has steady speed of 8 m/s .How far
does the car travel in 8s

Answers

Answer:

Explanation:

Distance traveled = steady speed * time duration = 8m/sec * 8 sec = 64 meters

Answer:

64 m

Explanation:

Multiply 8 m by 8.

A space station worker found herself floating free 100 meters from the space station because her safety line became unhooked

Answers

Answer:

Explanation: is that suppose to be the question or are you just saying?

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