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.
Aqua regia, which can dissolve gold, is a freshly prepared mixture of concentrated hydrochloric acid and concentrated ______.
What term is used for atoms that have the same number of protons but different numbers of neutrons?
Nitrous Oxide (N2O) is also known as –
Which gas is the chief component of Bio-gas?
Which of the following pollutants is the major contributor to photochemical smog?
What type of equilibrium is it when the center of gravity is at the highest point?
Which fuel has the highest calorific value?
Which one of the following is also called 'Fruit Sugar?
What is the molecular formula of chloroform?
The noble gas used in radiotherapy is
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