# chemistry gas laws

In a science demonstration, 4 to 6 plastic garbage bags are arranged under a 2 m by 2 m piece of plywood. A volunteer stands on the plywood and others blow into the bags to "levitate" the volunteer. If four bags are used and a 140 lb person is on the plywood, what is the pressure that must be supplied by each of the four blowers (in Pa)? What if 6 bags and blowers were used? (Assume the plywood has no mass).

Pressure = 140/4m^2. The number of bags has no influence, in any case, the pressure above is needed to move the plank.

1. 👍 0
2. 👎 0
3. 👁 154
1. 39 Pa for each of 4 blowers; 26 Pa for each of 6

1. 👍 0
2. 👎 0
posted by Dan

## Similar Questions

1. ### English

I forgot to include the very last sentences of the day. Thank you very much. 1) Every week a person in Britain uses three plastic bags. They are strong and donâ€™t disappear. They can last hundreds, possibly thousands of years.

asked by Mike1 on April 10, 2011
2. ### English

What kind of work did you do as a volunteer? 1. I helped the handicapped take baths and have meals. 1-1. I helped an handicapped person take baths and have meals. 2. I went to a hospital and took care of patients there by taking

asked by rfvv on November 25, 2009
3. ### English

What do you use to do your shopping in England? Plastic bags, carrier bags,tissue bags, paper bags, cardboard boxes What are tissue bags?

asked by Jutta on December 30, 2009
4. ### Science

The science teacher gave each group in the science lab a pair of wires for an investigation on electrical current.Susan noticed that the wires were made of metal,but they were covered with plastic.The wires were covered in plastic

asked by Aizon on April 17, 2012
5. ### math

Silas took 15 bags of glass to the recycling center on Monday. He took 6 bags of plastic to the recycling center on Tuesday. Which equation could be used to find x, the total number of bags of glass and plastic Silas took to the

asked by Wendy on November 9, 2015
6. ### science

Based on your knowledge of the garbage assemblage, what can you learn about the person(s) who created it and how might this be used to draw conclusions about their lives (e.g., diet, age, socioeconomic status, gender etc.)? It can

asked by mymalaca on May 21, 2013
7. ### Math 3

Lauren is baking dog biscuits to donate to her local shelter. She bakes 130 cookies and wants to package them in plastic bags. If each bag holds 8 biscuits, how many bags will she need to package all of the cookies? Is it 16 or 17

asked by Jenny 2 on March 18, 2014
8. ### Math Reasonableness

Luciel has 365 cookies to sell. She wants to store them in plastic bags that hole 12 cookies each. she estimates she will need 30 bags.Is he right? Why or why not?

asked by Chris on October 10, 2013
9. ### science

Based on your knowledge of the garbage assemblage, what can you learn about the person(s) who created it and how might this be used to draw conclusions about their lives (e.g., diet, age, socioeconomic status, gender etc.)? Here

asked by mymalaca on May 21, 2013
10. ### math

A garbage can is in the shape of a rectangular prism. The area of the base of the garbage can is 480 square inches. The height of the garbage can is 30 inches. (Part A) how many cubic inches of space are inside this garbage can?

asked by tony on September 25, 2011

More Similar Questions