Which of the following numbers represent the atomic mass of calcium?
40.08
20.18
44.10
56
The atomic mass of calcium (Ca) is approximately 40.08 u.
What will be A’s share of profit if the total profit is Rupees 1000 and is to be divided amongst A, B and C in the ratio 3 : 2 : 5?
What is the power dissipated in a 5-ohm resistor carrying 2 A current?
Which of the following numbers will have an irrational square root?
A seller starts on her daily routine. She walks 7 km north, then turns west and walks 6 km, then turns south and walks 2 km, then turns west and walks 3 km, then turns to her left and walks 5 km. Where is she now with reference to her starting position?
The difference between the place values of ‘4’ and ‘2’ in the number 833749502 is:
An echo is returned in 3 s. What is the distance of the reflecting surface from the source, considering the speed of sound as 342 ms -1 ?
Which of the following nations is not a permanent member of the United Nations Security Council?
If a box of mass 25 kg is pushed 15 m by a force of ‘F’ N and work done in the process is 480 J. Find F:
The apparent mass of a piece of metal when fully immersed in water is 60 gm. If the relative density of this metal piece is 2.5, find its actual mass (in gm)?
Solve the following
-4 - (-7 - 12 ÷ 4) = ?