Answer:
Combustion
Explanation:
Internal-Combustion engine.
Answer:
Increasing the amount of fiber in your diet can aid in achieving and maintaining a healthy weight. This is correct if you are consuming less than 25-30gms of fiber per day. exceding this limit won't be beneficial.
Consuming a high-fiber diet most likely promotes the health of the digestive system. This is correct. Fibers are important for the digestive system´s health, especially for intestines and colon.
Fiber and other carbohydrates like starch and sugar are digested and absorbed in the same manner. This is Incorrect. Fiber is absorbed and digested at a much slower rate than sugar or starch.
Consuming a diet high in dietary fiber increases LDL "the bad" cholesterol. This is incorrect. Consuming a diet high in dietary fiber would decrease the LDL.
Most American women consume more than 20 g of fiber per day, and most American men consume more than 30 g per day. This is incorrect. The data obtained by the University of California San Francisco said that currently the amount of fiber intake by Americans adults is about 15g a day, which is half the recommended amount.
This question is incomplete, the complete question is;
An individual eats fish from a river contaminated with benzene. What concentrations of benzene in water (mg/L) would produce a lifetime cancer risk of 10⁻⁶ to an individual who eats 2 meals of fish per week for 30 years if the BCF for benzene is 10⁺³?
Answer:
0.021 mg/L concentration of benzene in water would produce a lifetime cancer risk 10⁻⁶ to an individual who eats 2 meals of fish per week for 30 years if the BCF for benzene is 10⁺³
Explanation:
Chronic daily intake (CDI) =(C/W) (Intake rate/ lifetime) ( Exposure)
values from EPA Exposure Factors Table)
CDI = [ (5.2 L/d × C mg/L 0.054 kg/d) / 70 kg] [30/70] [350/365]
CDI = 1.65 × 10⁻³C
Now concentration of benzene; ( RISK) = CDI × pF
= 10⁻⁶ = [2.9× 10⁻² / (MG/kg-d)] ( 1.65 × 10⁻³C)
C = 0.021 mg/L
Therefore 0.021 mg/L concentration of benzene in water would produce a lifetime cancer risk 10⁻⁶
Answer:
C. 70 ft of water (209.2 kPa)
Explanation:
the formula for this problem is:
pump head pressure = pipe friction loss + vertical height
pump head pressure = 50+20
pump head pressure = 70 ft
converting to a kPa answer we have...
pump head pressure = (70ft*149.5kPa) /50
ft
pump head pressure = = 209.3Kpa
