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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.
Currently, the average age of individuals 'A' and 'B' is 17 years, with 'A' being 2 years older than 'B'. The age of 'C' is 50% greater than that of 'A'...
The present age of a mother is 4 times that of her daughter. After 12 years, the mother’s age will be 1 year more than twice the daughter’s age. Fin...
The respective ratio of the present ages of A and B is 7:6. The present age of C is 20% more than that of B. The sum of the present ages of A, B and C i...
The present ages of 'A' and 'B' are in the ratio of 3:7. The difference between their current ages is 12 years. How much percent older will 'B' be than...
18 years ago the average age of a family of four members was 45 years. Two children were born in that span of 18 years. The present average age of the f...
A is 4 years older than B while C is 6 years younger than B. The ratio of age of A, 5 years hence and age of B, 3 years ago is 3:2. What was age of C, 6...
If the total ages of A and B is 6 years more than the total age of B and C. C is how many years younger than A?
The present age of a father is three times that of his son. After 10 years, the father’s age will be twice that of his son. What are their current age...
Sum of the present ages of A, B, C and D is 70 years. After 5 years ratio of their ages is 5:4:4:2. What is C’s present age?
Ten years ago, the average age of five employees was 35 years. The present average age is 45 years after the inclusion of two new employees. Find the pr...
