Find the specific gravity for a human body.

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Chapter 3, Problem 26MDP

To determine

Find the specific gravity for a human body.

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2. How is the specific weight of a body defined?

The center of mass of an object: Must be located on the object. Generally coincides with the center of gravity for objects considered in engineering analysis if the gravitational field fo all parts of the object is uniform and parallel. Depends upon the variation of the value and direction of the force of gravity for each part of the object. Is always at the same point as the center of gravity.

Are you as strong as a horse? Purpose: To understand the concept of work and power and to calculate the power generated by yourself or a friend. Materials: A tape measure, stairs, and a stopwatch, cell phone, or wristwatch. Key Physics Concept: Power is the rate of doing work. Power can be calculated by dividing the work done by the time it takes to do the work; in this case we will do work against gravity on a stair case (you may add your power in doing pushups to test your arm power). Can you guess what your peak horsepower is? You may do the stairs one at at time or multiple stairs at a a time; whatever is most safe and efficient for you. Procedure: Observations: Analysis: Conclusions: Application: 1. Will your hp change if you performed the activity for a longer duration (for example, climbed the CN tower staircase)? In what way? Explain. 2. Research the horsepower generated by a car. How does the average person's peak power rating compare to it? How many average people would it…