It is 'C', a mixture, because flour and sugar are both a compound.
D)
Density is equal to mass/volume, so in your case:
density=1.3/1000=0.0013 g/cm^3
That the total energy of an isolated system remains constant and is said to be conserved over time
<span>The tides are a constant pulling and pushing against the land. Causing erosion.</span>
Answer:1.902 m
Explanation:
Given
height of apartment=1.5 m
It takes 0.21 sec to reach the bottom from apartment
So



i.e. if ball is dropped from top its velocity at window is 6.11 m/s
So height of upper floor above window

where s= height of upper floor above window
here u=0


s=1.902 m