7. A man has a mass of 80 kg on Earth. 7 a. What is the man's weight on Earth in Newtons? What is the
man's weight on Earth in pounds?

7 b. What is the man's weight on Mars where the acceleration
due to gravity is 3.7 M/ky? Show your answer in both
Newtons and pounds.

7c. What is the man's mass while on Mars? Explain your answer.

Acombination reaction is when two or more combine to form one product. a decomposition reaction is when a substance breaks down into two or more simpler substances in a chemical reaction.

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

A5 foot by 5 foot box culvert is buried 6 feet beneath the surface of the ground. a crosssection of this very long culvert (into and out of the page) is illustrated below. assume that the soil in which the culvert is buried has the following properties: jt = 120 pcf, w = 12%, ko = 0.50, ka = 0.33, and kp = 3.00. calculate the total horizontal force per unit length of culvert (fh) felt on one of the vertical faces of the culvert.