What do you mean by gravitational constant? State its SI units.

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What do you mean by gravitational constant? State its SI units.

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Description : A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle ... fluidisation velocity, VOM is (A) 12 mm/s (B) 16 mm/s (C) 24 mm/s (D) 28 mm/s

Last Answer : (B) 16 mm/s

Description : A bed of spherical particles (specific gravity 2.5) of uniform size 1500 μm is 0.5 m in diameter and 0.5 m high. In packed bed state, the porosity may be taken as 0.4. Ergun's equation for the above fluid-particle system ... What is the porosity of the fluidised bed? (A) 0.2 (B) 0.5 (C) 0.7 (D) 0.8

Last Answer : (C) 0.7

Description : List the conventions followed while using SI units.

Last Answer : List the conventions followed while using SI units.

Description : Explain why scientists use the International System of Units (SI).?

Last Answer : I have NO idea

Description : Explain why scientists use the International System of Units (SI).?

Last Answer : I have NO idea

Description : In which system of units, gas bills are charged? A. SI B. CGS C. BTU D. None of Above

Last Answer : ANSWER: C

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Description : In SI units the power of sound is represented in A. Kgs B. Joules C. Newtons D. Watts

Last Answer : ANS: D

Description : How many fundamental units are there in SI system?

Last Answer : Ans. There are seven fundamental units in SI system.

Description : In which system of units, gas bills are charged? A. SI B. CGS C. BTU (Answer) D. CNG

Last Answer : C. BTU (Answer)

Description : The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K0 + at, where, K is the thermal conductivity and T is the temperature (in °K). The units of 'a' in SI system will be (A) W/m.k (B) W/m (C) W/m.k

Last Answer : (C) W/m.k

Description : In SI units, fouling factor is expressed in (A) m2°K/W (B) W/m2°K (C) m2°K (D) m°K/W

Last Answer : (A) m2°K/W

Description : In SI units, thermal conductivity is expressed in (A) Watt/m.°K (B) Watt/m2 . °K (C) Watt/m2 . °K (D) Watt/m4 . °K

Last Answer : (A) Watt/m.°K

Description : The SI units of permitivity are: (a) N.m/C2(b) C2/N.m2 (c) N.m2/C2(d) N.m/C

Last Answer : (b) C2/N.m2

Description : The unit of Torque in SI units (a) kg-m (b) kg-cm (c) N-m (d) N/m2

Last Answer : (c) N-m

Description : Which of the seven SI (International System of Units) base units may also refer to one of the mammals in the Talpidae family?

Last Answer : Mole.

Description : Basic SI units

Last Answer : Basic SI units

Description : What is basic SI units?

Last Answer : SI units stand for International System of units. It was introduced in 1960. There are seven basic quantity in SI unit. They are Length unit is metre (m), Mass unit is kilogram (kg), Time unit is ... is kelvin (K), Luminous intensity unit is candela (cd), Amount of substance unit is mole (mol).

Description : What are the SI derived units?

Last Answer : Electrical capacitance, electrical resistance, electrical inductance, force, energy, power, magnetic flux, electric charge, and electric potential difference and EMF. These are the nine SI derived units.

Description : Newton, dyne and poundal are known as a.absolute units b.fundamental units c.gravitational units d.absolute units e.107 dynes

Last Answer : d. absolute units

Description : Calculate the mass and mean density of the earth from the following data : `{:(,"Gravitational constant",(G),=6.6xx10^(-11)Nm^(2)kg^(-2)),(,"Radius of

Last Answer : Calculate the mass and mean density of the earth from the following data : `{:(,"Gravitational constant",(G),=6. ... to gravity",(g),=9.8ms^(-2)):}`

Description : Calculate the mass and mean density of the earth from the following data : `{:(,"Gravitational constant",(G),=6.6xx10^(-11)Nm^(2)kg^(-2)),(,"Radius of

Last Answer : Calculate the mass and mean density of the earth from the following data : `{:(,"Gravitational constant",(G),=6. ... to gravity",(g),=9.8ms^(-2)):}`

Description : The value of Stefan-Boltzmann constant in SI unit is (A) 5.6697 × 10 -8W/m2 .°K4 (B) 0.1714 × 10 -8W/m2 .°K4 (C) 5.6697 × 10 -8kcal/m2 . °K4 (D) 0.1714 × 10 -8kcal/m2 . °K4

Last Answer : (A) 5.6697 × 10 -8W/m2 .°K4

Description : The SI unit of Planck’s constant is a) Joule – Sec-1 b) Joule – Sec-2 c) Joule – Sec d) Joule – Sec2

Last Answer : c) Joule – Sec

Description : The statement that the sum of the kinetic and potential energies of a particle in the earth's gravitational field is constant is known as a.Principle of conservation of mechanical energy b.Law of gravitation c.Newton's law d.Principle of conservation of momentum e.Law of nature

Last Answer : a. Principle of conservation of mechanical energy

Description : The dimensions of gravitational constant G a.MLT-2 b.M-1L3T-2 c.Ellipsc d.ML2T-1 e.MLT-1

Last Answer : b. M-1L3T-2

Description : Why is the gravitational constant called the universal constant ?

Last Answer : the distance between two particles of mass 1 kg is 1 m then the force which attracts each other is called gravitational constant. The gravitational constant is called the universal constant. Because it does not ... , the temperature, etc. , the value of this constant remains the same in all cases.

Description : What is the gravitational constant ?

Last Answer : the distance between two particles of mass 1 kg is 1 m then the force which attracts each other is called gravitational constant.

Description : What is the unit of gravitational constant G ?

Last Answer : The unit of gravitational constant G is Nm ^ 2kg ^ -2

Description : What is the value of the gravitational constant G ?

Last Answer : : The value of the gravitational constant G is 6.67384 10-11 Nm2kg-2

Description : Calculate the value of the universal gravitational constant from the given data. Mass of the Earth = 6 × 10^24 kg,

Last Answer : Calculate the value of the universal gravitational constant from the given data. Mass of the Earth = 6 ... to gravity on the surface = 9.8 m/s2.

Description : What are the dimensions of the universal gravitational constant?

Last Answer : What are the dimensions of the universal gravitational constant?

Description : What is the value of gravitational constant G?

Last Answer : 1

Description : The value of the universal gravitational constant, G is (a) 6.67 × 1011 Nm2/kg2 (b) 6.67 × 10+9 Nm2/kg2 (c) 6.67 × 10–9 Nm2/kg2 (d) 6.67 × 10–11 Nm2/kg2

Last Answer : Ans:(d)

Description : Gravitational constant (G) is an example of (a) Non-dimensional constant (b) Dimensional constant (c) Numeric constant (d) Quantity without dimensions

Last Answer : Ans:(b)

Description : The dimensional formula for universal gravitational constant is – (1) M⁻¹L³T² (2) ML²T⁻² (3) M⁻² (4) M⁻¹L³T⁻²

Last Answer : (4) M⁻¹L³T⁻² Explanation: Universal Constant of Gravitation is represented by G and is derived from Newton's law of gravitation.

Description : Dimension of Universal Gravitational constant is –

Last Answer : M–1L3T–2

Description : Dimensions of gravitational constant ‘G’ are: A. [M]-1 [L]3 [T]-2 B. [M] [L]3 [T]-2 C. [M]-1 [L]2 [T]-1 D. [M] [L]-1 [T]2

Last Answer : [M]-1 [L]3 [T]-2

Description : As distance increases, value of gravitational field strength A. also increases B. decreases C. remains constant D. may increase or decrease

Last Answer : decreases

Description : With the increase in depth, the hydrostatic pressure in an un-accelerated incompressible fluid (in a constant gravitational field) (A) Decreases (B) Increases linearly (C) Increases exponentially (D) Remain constant

Last Answer : (B) Increases linearly

Description : When the field is strong, the lines of force are: (a) Closer (b) Parallel (c) Farther (d) All of above 45. The electric lines of force determine the strength of an: (a) Gravitational field (b) Constant field (c) Magnetic field (d) Electric field

Last Answer : d) Electric field

Description : On which of the following variables heat convected depends ? (a) Power density (b) Temperature difference between heated surface and coolant (c) Thermal resistivity, density, specific heat (d) Gravitational constant (e) All ofthe above

Last Answer : (e) All ofthe above

Description : The gravitational constant for the universe was measured by which of the following? w) Kepler x) Einstein y) Newton z) Cavendish 

Last Answer : ANSWER: Z -- CAVENDISH

Description : The value of G, the universal gravitational constant, was measured experimentally by: w) Newton x) Cavendish y) Copernicus z) Kepler

Last Answer : ANSWER: X -- CAVENDISH

Description : Pick out the correct statement. (A) A chemical reaction accompanied by absorption of heat is called an exothermic reaction (B) A chemical reaction accompanied by evolution of heat is called an ... does not change on changing the concentration units (D) Chemical equilibrium state is dynamic in nature

Last Answer : (C) The rate constant for a first order reaction does not change on changing the concentration units

Description : The work done by a body on application of a constant force is the product of the constant force and distance travelled by the body in the direction of force. Express this in the form of a linear equation in two variables and draw its graph by taking the constant force as 3 units. -Maths 9th

Last Answer : Solution :-

Description : The attenuation constant is 0.5 units. The skin depth will be a) 0.5 b) 0.25 c) 2 d) 4

Last Answer : c) 2

Description : The group delay of a wave with phase constant 2.5 units and frequency of 1.2 radian/sec is a) 3.7 b) 1.3 c) 3 d) 2.08

Last Answer : d) 2.08

Description : The skin depth of a wave with phase constant of 12 units inside a conductor is a) 12 b) 1/12 c) 24 d) 1/24

Last Answer : b) 1/12