How many significant figure should be present in the answer of the `5xx5.364xx10^2`

Write the number of significant figures in each of the following measurements 1.67xx10^(-27)kg:

State the number of significant figures in the, following: 2.64 xx 10^(24) kg

How many times do nymphs moult to reach the adult form of cockroach?

How many atoms are present in a H_2S molecule

How many unit cells are present in a cube shaped ideal crystal of NaCl of Mass 1.0 g?

A rocket is fired from the earth towards the sun. At what distance form the earth's centre is the gravitational force on the rocket zero? Mass of the sun = 2 xx 10^20 kg and mass of earth = 6 xx 10^24 kg and orbital radius 1.5 xx 10^-8 km.

How many numbers of two digit are divisible by 5?

Is 7^5xx3^2xx5+3 a composite number? Justify the answer.

Express the following numbers in usual form. 5.8 xx 10^12

Calculate the force of gravitation between the earth and the Sun, given that the mass of the earth = 6 xx 10^24 kg and mass of the Sun = 2 xx 10^30kg . The average distance between the two is 1.5 xx 10^11 m .