An enclosed gas exerts a pressure p on the walls of the container. this pressure is directly proportional to the temperature t of the gas. if the pressure is 7 lb per inch squared when the temp is 420°f, find the constant of variation.

a. 1/49
b. 49
c. 1/60
d. 60

d. 60

Step-by-step explanation:

According to Gay Lussac's Law

P1/T1=P2/T2  where

P1= Pressure at the start, T1 = initial Temperature

, P2= Final Pressure, T2 =Final Temperature

T1=P1*T2/P2= 7*420/49=60

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

66.666666667%

step-by-step explanation:

divide 150 by 100

divide 100 by 1.5

there you go!

decreased by 33.333333334%