Answer: The molar mass of the hydrocarbon is 37 g/mol
Explanation:
Elevation in boiling point is given by:

= Elevation in boiling point
i= vant hoff factor =1 (for non electrolyte )
= boiling point constant = 
m= molality

Weight of solvent (acetone) = 95 g = 0.095 kg
Molar mass of solute = M g/mol
Mass of solute = 3.75 g


Thus the molar mass of the hydrocarbon is 37 g/mol
Flux=q/e0
e0=8.85*10^-12
!!! Cube has 6 sides, so flux through one side is equal to total flux/6
Ans=9.11*10^(-6)/((8.85*10(-12))*6)=(approximately)1.72*10^5Nm^2/C
Answer:
Explanation:
Resistivity is given by
where A is cross-sectional area, R is resistance, L is the length and
is the reistivity. Substituting 0.0625 for R, 3.14 × 10-6 for A and 3.5 m for L then the resistivity is equivalent to
Answer:
A. 
B. t = 50 s
Explanation:
A. The vectorial equation of the person who is getting closer to the other person is:

r: position vector
v: speed vector = 6m/s i (if you consider the motion as a horizontal motion)
Then, you replace and obtain:

B. The time is:

d: distance to the observer = 300m
v: speed of the person on the car = 6.00 m/s
