A Firefighter Uses a Hose That Shoots Water at a Rate

question 58

Multiple Choice

A firefighter uses a hose that shoots water at a rate of 5 m/s and volume flow rate of 40 L/s. If the firefighter is spraying the wall of a house, what is the average force exerted on the wall, assuming that the water splashes sideways in all directions? The density of water is 1000 kg/m³.

• A) 5 N
• B) 40 N
• C) 80 N
• D) 100 N
• E) 200 N

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Definitions:

Salivary Amylase

An enzyme found in saliva that initiates the breakdown of starches into simpler sugars during digestion.

Salivary Glands

Exocrine glands in the mouth that produce saliva, aiding in digestion and helping maintain oral health.

Gastric Lipase

An enzyme secreted by the stomach that plays a critical role in the digestion of dietary fats.

Stomach

A hollow organ in the gastrointestinal tract that secretes gastric juices aiding in the digestion and breaking down of food.