Calculate the volume of a 5-g sample of pure gold

≈ 0.26 cm³

Hi there !

Gold is a metal with a very high density.

The density of gold is higher than that of lead.

Density(gold) = 19300 kg/m³ = 19.3 g/cm³

19.3 g 1 cm³

5 g x cm³

x = 5g×1cm³/19.3g = 0.2590 cm³ ≈ 0.26 cm³

Good luck !

found in the nucleus

has mass of one amu

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards