[" Let "3+4+8+9+13+14+18+],[.........40" terms "=S." If "S=(102)m],[" then "m=]

Let there be k terms common in the series given by S_(1):11,15,19......(53 terms ) and S_(2):4,9,14,...(44 terms ) , then k is

Let term as 4 m ^(3) n ^(2) is

[" 68.A stone is thrown vertically upward with a "],[" speed of "10.0ms^(-1)" from the edge of a cliff "],[65m" high.What will be its speed just before "],[" hitting the bottom ? "],[[" 1) "3.14m/s," 2) "37,14m/s],[" 3) "13.71m/s," 4) "14.71m/s]]

The mass of an electron at rest is 9.1 xx10^(-31) kg. the mass of an electron, when it is moving with a speed of 2.4xx10^(8) m/s is (c=3xx10^(8) m//s)

The speed of light in air is 3 xx 10^(8)m//s and that in diamond is 1.4 xx 10^(3) m/s. The refractive index of diamond is

A ball rolling on ice with a velocity of 4 .9 m//s stops after travelling 4 m . If g = 9.8 m//s^(2) what is the coefficient of friction ?

From the point of the view of significant figures which of the following statements are correct ? (i) 10.2 cm + 8 cm = 18. 2 cm (ii) 2.53 m - 1.2 m = 1.33 m (iii) 4.2 m xx 1.4 m = 5.88 m^(2) (iv) 3.6 m //1.75 sec = 2.1 m//s

From the point of the view of significant figures which of the following statements are correct ? (i) 10.2 cm + 8 cm = 18. 2 cm (ii) 2.53 m - 1.2 m = 1.33 m (iii) 4.2 m xx 1.4 m = 5.88 m^(2) (iv) 3.6 m //1.75 sec = 2.1 m//s