Loui

I'm desperately looking for sites that have sample science fair projects in the engineering field. If somehow you could find it in your hearts to help me answer me. Please!

A woman with a mass of 65kg climbs a set of stairs that are 3m high. How much gravitational potential energy does she gain? Thank you.

Oxygen molecules contain two oxygen atoms, and carbon dioxide molecules contain one atom of carbon and two atoms of oxygen. How does the total number of molecules in 1 liter of oxygen compare with the total number of atoms in 1 liter of carbon dioxide if...

You can apply enough force to the head of a pushpin to push it into a plaster wall with your thumb. However, it is not a good idea to try to do this with a needle. Use the concept of pressure to explain the differnce betweeen these two situations. Thank y...

gold and silver have densities of 19.3 and 10.5 grams per cubic centimer, respectively. If you have eual volumes of each, which one will have the larger mass? I am thinking the gold. how do i prove it? Thank you

Two identical wooden barrels are fitted with long pipes extending out their tops. The pipe on the first barrell is 1 foot in diameter, an the pipe on the second barrell is only 1/2 inch in diameter. When the larger ptpe is fill with water to a height of 2...

With density g/cm3 copper 8.93 silver 10.5 mercury 13.6 will a block of copper or silver float higher in mercury in liquid form? Thank you.

Why would an aneurysm (a widening of an artery) be especially subject to ruputering? I am thinking the pressure is greater than what the artery can handle. How do I express this? Thank you.

What is the mass of a lead sinker witha volume of 3cm3? please show work Thank you

What is the mass of a lead sinker witha volume of 3cm3? please show work I calculated 11.3*3 = 33.9 Is this correct.. Thank you.

A survey will be conducted to determine the most popular vaccine in town. The researcher will choose from among the 200 male adults and 300 female adults as respondents. If the required margin of error is 5%, how many male and female respondents will be c...

If its vocab why did u say math?

Thanks so much. I have to check them out tomorrow tho cause I couldn't get back on till late. -loui

Any 2 of 12 is (12 x 11)/2 = 66. Any 2 from 6 is (6 x 5)/2 = 15 so the probability is 15 out of 66 ie 0.227 or 22.7% Loui

300-228 = 72 72/6 = 12 12 pounds each.