[PRD] Exploring Engineering – Exercise

If a US gallon has volume of 0.134 ft3 and human mouth has a volume of 0.900 in3, then how many mouthfuls of water are required to fill 5.00 gallon can?

1 ft3 = 1728 in3

Volume of 5 US gallon = 5 x 0.134 ft3 = 0.67 ft3

                                      = 0.67 ft3 x 1728 in3/1 ft3 = 1157.76 in3

Number of Human mouths = 1157.76 in3/0.900 in3 = 1286.4 mouthfuls ~ 1.29 x 103 mouthfuls

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s