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 speedof sound(Mach34) andseveral timesthemuzzlevelocity ofarifle 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,escapevelocityisthespeedatwhichthe kinetic energy plus the gravitational potential energy of an object is zero.
________ refers to two way communication but not at the same time.
The 'dot matrix and 'solid font printers are examples of
What type of web technology creates an online community where people can make statements and others can read and respond to those statements ?
Which among the following is the primary function of a scanner?
Point D is 3m to the West of Point R. Point A is 6 m to the North of point D. Point K is 16 m to West of point A. Point K forms a midpoint of the vertic...
INSTIGATION
If 'TOGETHER' is coded as 7 and 'BEAUTIFUL' as 8, then what is the code number for the word 'MONOPOLY'?
Select the most appropriate word to fill in the blank.
We respect you but we don’t agree ______ your ideas.
If ‘green’ is called ‘blue’, ‘blue’ is called ‘red’, ‘red’ is called ‘yellow’ an...
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