Answer:
The mass density (ρ)
Explanation:
The molar volume (Vm) is the volume that a mole of an element or compound occupies at standard temperature and pressure STP
The molar volume can be found as follows;
Where;
Mm = The molar mass
ρ = The mass density
The molar mass (Mm) of an element or a compound is the ratio of the mass of the element or compound to the amount of the element or compound in the given mass
The mass density, ρ, of an element or a compound is the mass of a unit volume of the element or compound
Therefore, we have;
When we divide the molar mass (Mm) by the by the molar volume (Vm), we obtain the mass density (ρ).
Unless the second ball's speed is twice the amount of the first ball's no they will not cross paths
Answer:
density of cube =11.605 g/cm³
Explanation:
density of a substance is the mass per unit volume of that substance.
the density of a substance =
volume of a cube = l³,
l = 19.0mm , lets convert mm to cm
1mm = 0.1cm, thus, 19mm =19*0.1 =1.9cm
length of cube =1.9cm
volume of cube = 1.9³
density of cube =
density of cube =11.605 g/cm³
Answer:
33%
Explanation:
Energy stored in a capacitor (U) =
The capacitance is constant. Hence,
V2/V1 =
If U1 = 1, then U2 is an increase of 77% (0.77), hence U2 = 1.77
V2/V1 =
V2/V1 = 1.33
Hence, the v of the capacitor should be increased by 33% in order to increase its stored energy by 77%.