Tuesday

July 29, 2014

July 29, 2014

Total # Posts: 15

**physics**

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.

**Math**

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

**physics**

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

**physics**

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.

**physics**

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.

**physics**

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 20 feet, the barrell bu...

**physics**

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

**layla**

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

**physics**

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 you

**physics**

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 they are both at the s...

**physics**

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.

**physics**

If an 80kg sprinter can accelerate from a standing start to a speed of 10 m/s in 3s, what average power is generated

**Science fair**

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

**Science fair**

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!

**math**

If its vocab why did u say math?

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