Who is the first to determine the exact radius of the earth ?

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Eratosthenes was the first to determine the exact radius of the earth.
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If The exact area of a circle is 81pi square inches what are the radius and diameter of the circle explain?

Description : If The exact area of a circle is 81pi square inches what are the radius and diameter of the circle explain?

Last Answer : The radius is 9 inches because area of circle is pi*9 squared =81pi square inches and the diameter is twice the radius which is2*9 = 18 inches

If D is the degree of the curve of radius R, the exact length of its specified chord, is (A) Radius of the curve × sine of half the degree (B) Diameter of the curve × sine of half the degree (C) Diameter of the curve × cosine of half the degree (D) Diameter of the curve × tangent of half the degree

Description : If D is the degree of the curve of radius R, the exact length of its specified chord, is (A) Radius of the curve sine of half the degree (B) Diameter of the curve sine of half the ... Diameter of the curve cosine of half the degree (D) Diameter of the curve tangent of half the degree

Last Answer : (B) Diameter of the curve × sine of half the degree

How can you determine the exact amount of sleep you need a night?

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Is this statement true or falseThe Converse of the Hinge Theorem can be used to determine exact measures of angles?

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If Ns=250, determine the earth radius k-factor. A. 1.98 B. 1.23 C. 1.33 D. 1.29

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The temperature of a gas measures the: w) number of calories of heat present x) average kinetic energy of the particles in the gas y) exact number of particles in the gas z) potential energy of the gas

Description : The temperature of a gas measures the: w) number of calories of heat present x) average kinetic energy of the particles in the gas y) exact number of particles in the gas z) potential energy of the gas

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What is the radius of the earth ?

Description : What is the radius of the earth ?

Last Answer : Earth's radius is 6 * 106 meters.

What is the radius of the earth ?

Last Answer : Earth's radius is 6 * 10 ^ 6 meters.

Weight of a person at a height of 2R from the centre of the earth, where R is the radius of the earth- (1) remains same (2) becomes half (3) becomes twice (4) becomes one-fourth

Description : Weight of a person at a height of 2R from the centre of the earth, where R is the radius of the earth- (1) remains same (2) becomes half (3) becomes twice (4) becomes one-fourth

Last Answer : (4) becomes one-fourth Explanation: The gravitational force is proportional to 1/R2, where R is the distance from the centre of the Earth. So at a height of 2R from the centre of the earth, the corresponding weight would be one-fourth of the original weight.

Velocity of escape is equal to A. r × √(2g); where r: radius of Earth or any other planet for that matter, g: gravitational field strength B. g × √(2r); where r: radius of Earth or any other planet for that matter, g: gravitational field strength C. √(2g) ⁄ r; where r: radius of Earth or any other planet for that matter, g: gravitational field strength D. √(2gr); where r: radius of Earth or any other planet for that matter, g: gravitational field strength

Description : Velocity of escape is equal to A. r √(2g); where r: radius of Earth or any other planet for that matter, g: gravitational field strength B. g √(2r); where r: radius of ... (2gr); where r: radius of Earth or any other planet for that matter, g: gravitational field strength

Last Answer : √(2gr); where r: radius of Earth or any other planet for that matter, g: gravitational field strength

Mass of Earth when it's radius is 6400 km and gravitational field strength is 9.81 N kg-1 is A. 6.0 × 1024 kg B. 5 × 1023 kg C. 40 × 109 kg D. 9 × 1024 kg

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Last Answer : 5 × 1023 kg

The height which the weight of a body becomes 1/16th, its weight on the surface of earth (radius R) is (1) 4 R (2) 5 R (3) 15 R (4) 3 R

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Last Answer : What is the answer ?

What term is used to describe the exact place on the earth at which a geographic feature is found?

Description : What term is used to describe the exact place on the earth at which a geographic feature is found?

Last Answer : Its geographic coordinates or latitude and longitude measured indegrees, minutes and seconds.

What is the exact gravity of Earth?

Description : What is the exact gravity of Earth?

Last Answer : 34.67589494

What is exact time taken by the earth for single rotation on its own axis?

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Last Answer : 23 hrs 56 minutes 4.09 sec

What is exact time taken by the earth for single rotation on its own axis?

Description : What is exact time taken by the earth for single rotation on its own axis?

Last Answer : 23 hrs 56 minutes 4.09 sec

1. In which years did the Right to Information Act come into force? 2. The electron emitted in beta radiation originates from where? 3. The name of Geoff Bycott is associated with which game? 4. What is exact time taken by the earth for single rotation on its own axis? 5. Who built the famous Dilwara temple at Mount Abu in the 13th century ?

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A circle is represented by center point [5,5] and radius 6 units. Find the parametricequation of circle and determine the various points on circle in first quadrant if increment in angle by 45o a.9.24,9.24 b.9.42,9.42 c.9,9 d.11,5

Description : A circle is represented by center point [5,5] and radius 6 units. Find the parametricequation of circle and determine the various points on circle in first quadrant if increment in angle by 45o a.9.24,9.24 b.9.42,9.42 c.9,9 d.11,5

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An electron moves in a circular orbit of radius 10 cm with a constant speed of `4.0xx10^(6) ms^(-1)`. Determine the electric current at a point on the

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What shell will determine the atomic radius of carbon?

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Determine the maximum shearing stress and elongation in a helical steel spring composed of 20 turns of 20-mm-diameter wire on a mean radius of 90 mm when the spring is supporting a load of 1.5 kN. and G = 83 GPa. a. 200 mm b. 105.4 mm c. 150 mm d. 250 mm

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Two bodies of equal mass are moving in circular paths at equal speed. The first body moves in a circle whose radius is twice as great as that of the second. The ratio of the centripetal or radial acceleration of the first body to that of the second is: w) 1 to 4 x) 1 to 3 y) 1 to 2 z) 1 to 1

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Last Answer : ANSWER: Y -- 1 TO 2

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A man went to a party. There was a bartender at the party, and while the man was recieving his drink, the bartender said,” I bet $50 I can write your exact age on this slip of paper.” Since the first man had never met this man before, he agreed. In the end he ended up paying the bartender $50. What did the bartender write? -Riddles

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Who accurately determined the radius of the first earth ?

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Last Answer : Scientist Eratosthenes

How do you figure out the percent uncertainty in the volume of a sphere when you know its radius with a particular degree of certainty?

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What is the curvature radius of the lens ?

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How many meters is the radius of proton ?

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The centre of the reflecting surface of a spherical mirror is called the : (1) Radius (2) Centre of Curvature (3) Pole (4) Focus

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The colours of stars depend on their – (1) temperature (2) distance (3) radius (4) atmospheric pressure

Description : The colours of stars depend on their – (1) temperature (2) distance (3) radius (4) atmospheric pressure

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If there is a circular hole in a metal plate, what happens to the radius of the hole when the plate is heated? (1) Increases (2) Decreases (3) Unchanged (4) Depends upon the metal

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Last Answer : (1) Increases Explanation: When a metal plate with a circular hole at its centre is heated, definitely along with the areal expansion of the plate the diameter of the circular hole also increases. Using ... of expansions, we find that the hole radius increases at the same linear rate as the metal.

A particle is moving in a uniform circular motion with constant speed v along a circle of radius r. The acceleration-of the particle is – (1) zero (2) V/r (3) V/r² (4) V²/r

Description : A particle is moving in a uniform circular motion with constant speed v along a circle of radius r. The acceleration-of the particle is – (1) zero (2) V/r (3) V/r² (4) V²/r

Last Answer : (4) V²/r Explanation: When a particle is moving in a uniform circular motion with constant speed and radius. the acceleration of the particle is given by v2/r. The particle will exhibit centripetal acceleration.

An object moving in a circle of radius ‘r’ with a constant speed ‘v’ has a constant acceleration towards the center equal to A. v²⁄r B. v⁄r C. v²×r D. v×r

Description : An object moving in a circle of radius ‘r’ with a constant speed ‘v’ has a constant acceleration towards the center equal to A. v²⁄r B. v⁄r C. v²×r D. v×r

Last Answer : v²⁄r

Mass of steel sphere having density 7850 kg m-3 and radius 0.15 m is A. 112 kg B. 290 kg C. 110.9 kg D. 300 kg

Description : Mass of steel sphere having density 7850 kg m-3 and radius 0.15 m is A. 112 kg B. 290 kg C. 110.9 kg D. 300 kg

Last Answer : 110.9 kg

Square of orbital period is proportional to A. radius B. square of radius C. cube of radius D. square of diameter

Description : Square of orbital period is proportional to A. radius B. square of radius C. cube of radius D. square of diameter

Last Answer : cube of radius

Speed of an object travelling around a circle depends upon A. angular velocity B. radius C. circumference D. both A and B

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Last Answer : both A and B

If an object moves a circular distance ‘s’ of radius ‘r’, then it's angular displacement is A. s⁄r B. r⁄s C. rs D. r2s

Description : If an object moves a circular distance ‘s’ of radius ‘r’, then it's angular displacement is A. s⁄r B. r⁄s C. rs D. r2s

Last Answer : s⁄

An electron is travelling at right angles to a uniform magnetic field of flux density 1.2 mT with a speed of 8 × 106 m s-1, the radius of circular path followed by electron is A. 3.8 cm B. 3.7 cm C. 3.6 cm D. 3.5 cm

Description : An electron is travelling at right angles to a uniform magnetic field of flux density 1.2 mT with a speed of 8 × 106 m s-1, the radius of circular path followed by electron is A. 3.8 cm B. 3.7 cm C. 3.6 cm D. 3.5 cm

Last Answer : 3.8 cm

Centripetal force is dependent on three factors, the odd one out of these factors is A. Mass of the rotating object B. Speed of the rotating object C. Volume of the rotating object D. Path radius

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Last Answer : Volume of the rotating object

When a mass is rotating in a plane about a fixed point, its angular momentum is directed along: (1) the tangent to the orbit (2) a line perpendicular to the plane of rotation (3) the line making an angle of 45° to the plane of rotation (4) the radius

Description : When a mass is rotating in a plane about a fixed point, its angular momentum is directed along: (1) the tangent to the orbit (2) a line perpendicular to the plane of rotation (3) the line making an angle of 45° to the plane of rotation (4) the radius

Last Answer : (2) a line perpendicular to the plane of rotation

A sphere which has half the radius but twice the density of another sphere has: w) more mass x) less mass y) the same mass z) the same weight

Description : A sphere which has half the radius but twice the density of another sphere has: w) more mass x) less mass y) the same mass z) the same weight

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An electron and a proton are moving at the same speed in circular paths in the same uniform magnetic field. The radius of the path of the proton is one of the following. Is this radius: w) the same as that of the electron x) about 2000 times larger than that of the electron y) a little larger than that of the electron z) smaller than that of the electron

Description : An electron and a proton are moving at the same speed in circular paths in the same uniform magnetic field. The radius of the path of the proton is one of the following. Is this radius: w) the same ... of the electron y) a little larger than that of the electron z) smaller than that of the electron

Last Answer : ANSWER: X -- ABOUT 2000 TIMES LARGER THAN THAT OF THE ELECTRON