Question and Answers Forum

All Questions   Topic List

AllQuestion and Answers: Page 1659

Question Number 39814    Answers: 2   Comments: 0

kwame, ama and yaw shared an amount of money in the ratio 3:4:5. if ama had $8,400 more than kwame. find the total amount shared.

$$\mathrm{kwame},\:\mathrm{ama}\:\mathrm{and}\:\mathrm{yaw}\:\mathrm{shared}\:\mathrm{an}\:\mathrm{amount}\:\mathrm{of}\:\mathrm{money} \\ $$$$\mathrm{in}\:\mathrm{the}\:\mathrm{ratio}\:\mathrm{3}:\mathrm{4}:\mathrm{5}.\:\mathrm{if}\:\mathrm{ama}\:\mathrm{had}\:\$\mathrm{8},\mathrm{400}\:\mathrm{more}\:\mathrm{than}\:\mathrm{kwame}. \\ $$$$\mathrm{find}\:\mathrm{the}\:\mathrm{total}\:\mathrm{amount}\:\mathrm{shared}. \\ $$

Question Number 39811    Answers: 1   Comments: 1

Question Number 39799    Answers: 1   Comments: 0

what will be the number which makes 680621 a perfect square root?

$$\boldsymbol{\mathrm{what}}\:\boldsymbol{\mathrm{will}}\:\boldsymbol{\mathrm{be}}\:\boldsymbol{\mathrm{the}}\:\boldsymbol{\mathrm{number}}\:\boldsymbol{\mathrm{which}}\:\boldsymbol{\mathrm{makes}}\:\mathrm{680621} \\ $$$$\boldsymbol{\mathrm{a}}\:\boldsymbol{\mathrm{perfect}}\:\boldsymbol{\mathrm{square}}\:\boldsymbol{\mathrm{root}}? \\ $$

Question Number 39798    Answers: 0   Comments: 5

Please someone should propose a textbook that really explains Gauss law,electric flux and capacitance.I need to download 1.. Thanks.

$${Please}\:{someone}\:{should}\:{propose}\:{a} \\ $$$${textbook}\:{that}\:{really}\:{explains} \\ $$$${Gauss}\:{law},{electric}\:{flux}\:{and} \\ $$$${capacitance}.{I}\:{need}\:{to}\:{download}\:\mathrm{1}.. \\ $$$${Thanks}. \\ $$

Question Number 39794    Answers: 1   Comments: 0

Two charged concentric spheres have radii of 10cm and 18cm.The charge on the inner sphere is 6.0×10^(−8) C and that on the outer sphere is 2.0×10^(−8) C.Find the electric field (i)at r=12cm and (ii)at r=25cm

$${Two}\:{charged}\:{concentric}\:{spheres} \\ $$$${have}\:{radii}\:{of}\:\mathrm{10}{cm}\:{and}\:\mathrm{18}{cm}.{The} \\ $$$${charge}\:{on}\:{the}\:{inner}\:{sphere}\:{is} \\ $$$$\mathrm{6}.\mathrm{0}×\mathrm{10}^{−\mathrm{8}} {C}\:{and}\:{that}\:{on}\:{the}\:{outer} \\ $$$${sphere}\:{is}\:\mathrm{2}.\mathrm{0}×\mathrm{10}^{−\mathrm{8}} {C}.{Find}\:{the} \\ $$$${electric}\:{field}\:\left({i}\right){at}\:{r}=\mathrm{12}{cm}\:{and} \\ $$$$\left({ii}\right){at}\:{r}=\mathrm{25}{cm} \\ $$$$ \\ $$$$ \\ $$

Question Number 39792    Answers: 1   Comments: 1

A positive charge of magnigude 2.5μC is at the centre of an uncharged spherical conducting shell of inner radius 60cm and an outer radius of 90cm. (i)find the charge densities on thd inner and outer surfaces of the shell and the total charge on each surface. ii)find the electricity field everywhere.

$${A}\:{positive}\:{charge}\:{of}\:{magnigude} \\ $$$$\mathrm{2}.\mathrm{5}\mu{C}\:{is}\:{at}\:{the}\:{centre}\:{of}\:{an}\:{uncharged} \\ $$$${spherical}\:{conducting}\:{shell}\:{of}\:{inner} \\ $$$${radius}\:\mathrm{60}{cm}\:{and}\:{an}\:{outer}\:{radius} \\ $$$${of}\:\mathrm{90}{cm}. \\ $$$$\left({i}\right){find}\:{the}\:{charge}\:{densities}\:{on}\:{thd} \\ $$$${inner}\:{and}\:{outer}\:{surfaces}\:{of}\:{the} \\ $$$${shell}\:{and}\:{the}\:{total}\:{charge}\:{on}\:{each} \\ $$$${surface}. \\ $$$$\left.{ii}\right){find}\:{the}\:{electricity}\:{field} \\ $$$${everywhere}. \\ $$

Question Number 39787    Answers: 0   Comments: 2

calculste I_λ = ∫_(−∞) ^(+∞) ((cos(λx^n ))/(1+x^2 )) dx with λ from R and n integr natural 2) find the vslue of ∫_(−∞) ^(+∞) ((cos(3 x^9 ))/(1+x^2 )) dx .

$${calculste}\:\:{I}_{\lambda} \:=\:\int_{−\infty} ^{+\infty} \:\:\frac{{cos}\left(\lambda{x}^{{n}} \right)}{\mathrm{1}+{x}^{\mathrm{2}} }\:{dx}\:\:{with} \\ $$$$\lambda\:{from}\:{R}\:{and}\:{n}\:{integr}\:{natural} \\ $$$$\left.\mathrm{2}\right)\:{find}\:{the}\:{vslue}\:{of}\:\:\int_{−\infty} ^{+\infty} \:\:\frac{{cos}\left(\mathrm{3}\:{x}^{\mathrm{9}} \right)}{\mathrm{1}+{x}^{\mathrm{2}} }\:{dx}\:. \\ $$

Question Number 39783    Answers: 1   Comments: 0

Find roots of f(x)=x^4 −10x^3 +35x^2 −50x+24

$${Find}\:{roots}\:{of} \\ $$$${f}\left({x}\right)={x}^{\mathrm{4}} −\mathrm{10}{x}^{\mathrm{3}} +\mathrm{35}{x}^{\mathrm{2}} −\mathrm{50}{x}+\mathrm{24} \\ $$

Question Number 39779    Answers: 1   Comments: 0

f(x)=x^4 −2x^3 +3x^2 −4x+5 Find the roots.

$${f}\left({x}\right)={x}^{\mathrm{4}} −\mathrm{2}{x}^{\mathrm{3}} +\mathrm{3}{x}^{\mathrm{2}} −\mathrm{4}{x}+\mathrm{5} \\ $$$${Find}\:{the}\:{roots}. \\ $$

Question Number 39776    Answers: 0   Comments: 3

Question Number 39775    Answers: 0   Comments: 1

Question Number 39774    Answers: 0   Comments: 0

Question Number 39773    Answers: 0   Comments: 0

Question Number 39771    Answers: 0   Comments: 0

Question Number 39769    Answers: 0   Comments: 0

Question Number 39767    Answers: 0   Comments: 0

Question Number 39766    Answers: 0   Comments: 0

Question Number 39765    Answers: 0   Comments: 0

Question Number 39764    Answers: 0   Comments: 0

Question Number 39763    Answers: 0   Comments: 0

Question Number 39761    Answers: 0   Comments: 0

Question Number 39762    Answers: 0   Comments: 0

Question Number 39756    Answers: 1   Comments: 1

A force F = 2t i + 5j acts on a particle of mass 2kg. find the velocity and the magnitude of the impulse that acts on the particle within the time range 1s ≤ t ≤ 3s

$${A}\:{force}\:{F}\:=\:\mathrm{2}{t}\:\boldsymbol{{i}}\:+\:\mathrm{5}\boldsymbol{{j}}\:{acts}\:{on} \\ $$$${a}\:{particle}\:{of}\:{mass}\:\mathrm{2}{kg}.\:{find} \\ $$$${the}\:{velocity}\:{and}\:{the}\:{magnitude} \\ $$$${of}\:{the}\:{impulse}\:{that}\:{acts}\:{on}\: \\ $$$${the}\:{particle}\:{within}\:{the}\:{time} \\ $$$${range}\:\:\mathrm{1}\boldsymbol{{s}}\:\leqslant\:\boldsymbol{{t}}\:\leqslant\:\mathrm{3}\boldsymbol{{s}} \\ $$

Question Number 39755    Answers: 1   Comments: 0

Question Number 39750    Answers: 2   Comments: 3

Question Number 39747    Answers: 1   Comments: 0

  Pg 1654      Pg 1655      Pg 1656      Pg 1657      Pg 1658      Pg 1659      Pg 1660      Pg 1661      Pg 1662      Pg 1663   

Terms of Service

Privacy Policy

Contact: info@tinkutara.com