Suppose 2 kg of sugar contains `9 xx 10^6` crystals. How many sugar crystals are there in : 1.2 kg of sugar?

Suppose 2 kg of sugar contains 9 xx 10^6 crystals. How many sugar crystals are there in : 5 kg of sugar?

How are sugar crystals separated in a sugar factory ?

How many natural numbers lies between 9^2 and 10^2 ?

1 newton is equal to how many kg wt ?

A current of 2.4 A flows through a wire of cross-sectional area 1.5 mm^2 . Find the current density in the wire. If the wire contains 8 xx 10^28m^-3 elecrtrons per unit volume calculate the average relaxation on time. Given that charge on electron = 1.6 xx 10^-19C and mass of electron =9.1 xx 10^-31 kg.

Find the cost of sugar and wheat per kg., if the cost of 7kg. Of sugar and 3 kg, of wheat is Rs. 210. cost of 7kg. wheat and 3 kg, of sugar is Rs. 160. (Use determinants).

1 kg wt is equal to how many newtons ?

If mass of Earth is 6xx10^24 kg, radius of Earth is 6.4 xx 10^6m and the gravitational constant is 6.7 xx10^-(11)Nm^2kg(-2) . Calculate the value of g.