Question
A man inside an artificial satellite feels
weightlessness because the force of attraction due to earth is –Solution
Earth attracts all bodies towards its centre. The acceleration produced in the body due to attraction force of earth on it is called the acceleration due to gravity. A astronaut in a satellite experiences weightlessness because two forces act on him: gravitational pull and centrifugal force which cancel out each other with the resultant force acting on him being zero.
Rs 450 is to be divided into three parts such that four times the first part may be equal to three times the second and six times the third. Then the sh...
Find the difference between Simple Interest and Compound Interest for a sum of ₹ 8,000 lent at 10% per annum in 2 years.
Select the number from the given options which will come in place of the question mark (?) in the following series.
6, 12, 14, 28, 30, 60, ?
A can do a piece of work in 8 days and B can do the same piece of work in 12 days. A and B together complete the same piece of work and get ?200 as the...
The curved surface area of a right circular cone of height 15 cm and base diameter 16 cm is
The largest four digit number which when divided by 4, 7 and 13 leaves a remainder 3 in each case is
Find the G.C.D. of the following:
35x5 y3 z4, 49x² yz3, 14xy2 z²
The value of a motor cycle 2 years ago was ₹ 70,000. It depreciates at the rate of 4% p.a. Find its present value.
A machine bought at Rs. 50,000 falls in its value by 8% of its value every year. Find the value of the machine after 2 years.
Find the missing number
2, 4, 12, 48, 240, .....
Relevant for Exams:
