Question
What is the minimum escape velocity of rocket to be
launched into space?Solution
On the surface of the Earth, the escape velocity is about 11.2 kilometers per second 06.96 mi/s), which is approximately 34 times the speed of sound (Mach 34) and several times the muzzle velocity of a rifle bullet (up to 1.7 km/s). However, at 9,000 km altitude in "space", it is slightly less than 7.1 km/s. In physics, escape velocity is the speed at which the kinetic energy plus the gravitational potential energy of an object is zero.
Select the option figure in which he given figure is embedded (rotation is NOT allowed).
Asim is four years older than his brother Basu who is thrice as old as Chetan. If Asim is four times as old as Chetan, then how old (in years) is Basu?
Six friends J, K, L, M, N and O are sitting around a circular table facing the centre. N is not an immediate neighbour of M. M is sitting to the immedia...
Three of the following four figures are alike in a certain way and one is different. Select the odd one.
After arranging the given words according to dictionary order, which word will come at 'Fourth' position?Â
1. WheelÂ
2. WheatÂ
3...
AE10 is related to CG20 in a certain way. In the same way, KO20 is related to MQ30. To which of the following is CG30 related, following the same logic?
Select the option that is related to the third word in the same way as the second word is related to the first word.
Potato : Â stem : Gram : ?
Rubi and Juhi are sisters. Krishna is Johi's father's father. Reshms in the mother of Arvind. Arvind is the father of Rohit,
who is the only brot...
There are three numbers, such that thrice the first number is equal to four times the second number and six times the third number. Find the ratio of th...
Here are some words translated from an artificial language.
(a) mallonpimi means blue light
(b) mallontifl means blue berry
(e) arp...
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