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.
How many numbers between 1 to 50 are there, which are not only exactly divisible by 4 but also has 4 as a digit?
Choose the correct alternative from the given ones.
AYD, BVF, DRH, ?, KGL
- Select the option that is related to the fifth element in the same way as the second element is related to the first element and the fourth element is rela...
Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.
p q _ _ rr _ s...
From which of the following words we get a new meaningful word if we add the prefix ‘Un’?
If FROG - PARK = 10, MAID - LITE = 1, then HARM – ROPE=?
Careful is to cautious as boastful is to:
Select the set in which the numbers are related in the same way as the numbers of the following sets.
(Note: Operations must be performed on w...
If 35 @ 18 = 66 and 49 @ 22 = 136, then 23 @ 44 = '?'.
In a certain code language, 'MERCHANT’ is written as 'NFSCHCPV' and 'INTERIOR' is written as 'JOUERKQT'. How will 'JUNCTION' be written in that langua...
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