Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

1. Which of the container has the largest pressure at the bottom? Assume the liq

ID: 2039621 • Letter: 1

Question

1. Which of the container has the largest pressure at the bottom? Assume the liquid in each container has the same density. The pressures are equal. 2. What is the density of gold? If you know that 0.5 m3 gold is 9650 kg? A. 19300 kg/m3 B. 19.3 g/m3 C. 9650 kg/m3 D. 4825 kg/m3 3. What is the specific gravity of Aluminum, which has the density of 2.70 x 103 kg/m3? A. 27 B. 27000 C. 2.7 D. 2700 o the surface of the ocean, how much higher is the water pressure 100 4. Compare t m below the surface? A. 100 Pa B. 980 Pa C. 98000 Pa D. 9.8 x 105 Pa

Explanation / Answer


1)


pressure on the base P = Po + rho*g*h


Po = atmospheric pressure


h = depth of the water level


In fig d the depthe is more


the container in d has largest pressure at the bottom

OPTION ( d)

--------------------------


2)

density = mass/volume

density = 9650/0.5 = 19300 kg /m^2


OPTION ( A )

====================

3)


specific gravity = density of substance/density of gold


specific gravity = (2.7*10^3)/(1*10^3) = 2.7

OPTION ( C )

=======================


4)


Pressure P = Po + rho*g*h

excess pressure dP = P - Po = rho*g*h = 1000*9.8*100 = 9.8*10^5 Pa

OPTION ( D )