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1. ### In dense material, light travels slower and sound faster,,, is there any material/density where sound goes faster than light?

...c, and such media usually don't transmit visible light at all. ( v[sound,air@STP] ≈ 10⁻⁶c ) But I can't think of a way to rule out the...

2 Answers · Science & Mathematics · 27/05/2016

Either there is a lot of extraneous data here, or I miss the point. A tube open at both ends has a fundamental wavelength equal to twice the distance between the ends, so here λ = 2 * 8cm = 0.16 m, so f = v / λ = 340m/s / 0.16m = 2125 Hz Hope this helps!

1 Answers · Science & Mathematics · 15/03/2016

3. ### To an order of magnitude, how many helium-filled toy balloons would be required to lift you?

I'm doing the same physics problem right now and I cannot figure it out for the life of me. I already used my two attempts on web assign. But I wanted to mention that I posted this problem on this...

1 Answers · Science & Mathematics · 22/11/2015

4. ### Help solving this physic problem?

... constants to find the volume at standard conditions (STP.) The standard temperature is 273 K (0° Celsius) and the...

1 Answers · Science & Mathematics · 09/09/2015

5. ### The pond in your backyard is 40cm deep.?

Q1: Assume a quasi-static state (linear temperature profilen) and equate the heat-flows acrosswater (1) and ice (2). This approximatin implies we are assuming no further ice growth (no latent heat of fusion adding to the heat flow) and no further cooling of the ice...

1 Answers · Science & Mathematics · 07/09/2015

6. ### how much air at sea level atmospheric pressure of 15lb/in^2 can be stored in the 12 ft^3 tank of an air compressor which can be withstand?

...73 psia - cu ft / lbmol - R ) ( 529.7 R ) n = 0.1900 lbmol V at STP = ( 0.1900 mol ) ( 379.3 SCF . lbmol ) = 72.1 SCF V at STP...

1 Answers · Science & Mathematics · 01/10/2015

7. ### PHYSICS GAS PROB?

note STP = 1 atm and 273K as nitrogen is diatomic gama = 7/5 P1/...

1 Answers · Science & Mathematics · 29/05/2015

8. ### 22g of nitrogen gas at STP are pressurized in an isochoric process to a pressure of 15atm .?

The Pmax/Pmin is obvious, because "STP" means the pressure is 1 atmosphere and (usually) 0 degrees...

2 Answers · Science & Mathematics · 18/02/2015

9. ### Which of the following gases has a density of 5.40 g/L at STP? H2S, SO3, CF2Cl2?

The molar mass of the gas: 5.40 × 22.4 ≈ 120.96 g/mole molar mass of H₂S = 34 g/mole molar mass of SO₃ = 80 g/mole molar mass of CF₂Cl₂= 120.91 g/mole CF₂Cl₂ is that gas.

1 Answers · Science & Mathematics · 02/12/2014

10. ### Convert following to STP?

STP is 101.325 kP and 0C. 1) P1V!/T1 = P2V2...

1 Answers · Science & Mathematics · 19/11/2014