Follow the rules for working with measurements. The pressure at the bottom of a lake is found by the formula P = hD, where h is the depth of the water and D is the density of the water. Find the pressure in $1 \mathrm {~b} / \mathrm { in } ^ { 2 }$ at 250 ft below the surface. $D = 62.41 \mathrm {~b} / \mathrm { ft } ^ { 3 }$ .
A) $P = 1,3001 \mathrm {~b} / \mathrm { in } ^ { 2 }$
B) $P = 1101 \mathrm {~b} / \mathrm { in } ^ { 2 }$
C) $P = 650 \mathrm { lb } / \mathrm { in } ^ { 2 }$
D) $P = 2171 \mathrm {~b} / \mathrm { in } ^ { 2 }$
E) $P = 1081 \mathrm {~b} / \mathrm { in } ^ { 2 }$

Question

Quizplus · Accepted Answer

The pressure P is calculated using the formula P = hD. Substituting h = 250 ft and D = 62.41 lb/ft³, we get P = 250 * 62.41 = 15602.5 lb/ft². To convert lb/ft² to lb/in², divide by 144 (since 1 ft² = 144 in²). Thus, P = 15602.5 / 144 ≈ 108.35 lb/in², which is closest to option E.

Follow the Rules for Working with Measurements 1 b/in21 \mathrm {~b} / \mathrm { in } ^ { 2 }1 b/in2

Follow the Rules for Working with Measurements $1 \mathrm {~b} / \mathrm { in } ^ { 2 }$