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ehidna [41]
4 years ago
7

Your lab has two pressurized gas cylinders, each containing a different gas. describe an experiment that could be used to determ

ine whether each gas is less dense than air.
Physics
1 answer:
Papessa [141]4 years ago
8 0
The easiest way is to fill two very light globes, each with a different gas.

Blow globe 1 with gas from the cylinder marked with label 1, and blow glove 2 with gas from the cylinder marked with label 2.

If a globe ascends in the air, it is because its gas is less dense than air.

Inflate the globes quite enough to be sure that the mass of the rubber of the globe is not important relative to the mass of  gas and so it does not change the results. If you obtain a result where the globe does not have a cliea ascending or descending motion, you can inflate more the globe and it shouuld start to rise if the gas really is less dense than air.
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What do you notice about the wavelength versus the frequency of the wave?
Dominik [7]

<u>Answer:</u>

The number of complete wavelengths in a given unit of time is called frequency (f). As a wavelength increases in size, its frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer.

<u>Explanation:</u>

*can i be the brainliest*

6 0
4 years ago
Two point charges are brought closer together, increasing the force between them by a factor of 20. By what factor was their sep
olga55 [171]

The separation between them is \frac{r}{\sqrt{20} }

Concept :

If the force increases, distance between charges must decrease. Force is indirectly proportional to the distance squared.

Given,

Two point charges are brought closer together, increasing the force between them by a factor of 20.

Original force is

F = \frac{kq_{1} q_{2} }{r^{2} } -------- ( 1 )

Here, q_{1} , q_{2} are charges and r is the distance between them

New force F' = \frac{kq_{1q_{2} } }{r'^{2} } ----------- (2 )

Divide ( 1 ) and ( 2 )

\frac{F'}{F} = \frac{\frac{kq_{1}q_{2}  }{r'^{2} } }{\frac{kq_{1}_{2}  }{r^{2} } }

20 = \frac{r^{2} }{r'^{2} }

r' = \frac{r}{\sqrt{20} }

Given that force between them are increasing and therefore distance between them decrease by \frac{r}{\sqrt{20} }

Learn more about two point charges here : brainly.com/question/24206363

#SPJ4

8 0
2 years ago
Un tubo cilíndrico de acero tiene 2.4 cm3 de volumen a -20°C. ¿Cuál será su volumen con una temperatura final de 47C ? Y ¿ Cuál
vaieri [72.5K]

i searched this in googl.e, and there was one website, so i clicked it, and umm it was very disgusting ,,,

4 0
3 years ago
On the surface of the earth, weight is calculated by:
sdas [7]

On the surface of the earth, weight is calculated by multiplying mass and gravity.

 

<span>Because we know the radius of the Earth, we can use the Law of Universal Gravitation to calculate the mass of the Earth in terms of the gravitational force on an object (its weight) at the Earth's surface, using the radius of the Earth as the distance. We also need the Constant of Proportionality in the Law of Universal Gravitation, G. This value was experimentally determined by Henry Cavendish in the 18th century to be the extemely small force of 6.67 x 10</span>-11 Newtons between two objects weighing one kilogram each and separated by one meter. Cavendish determined this constant by accurately measuring the horizontal force between metal spheres in an experiment sometimes referred to as "weighing the earth."

 

 

The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

8 0
4 years ago
Read 2 more answers
NEED HELP ASAP QUIZ PLEASE
zmey [24]
Blank 1 Thermal energy
Blank 2 heat
Thermal energy is the total energy of the particles.
Heat is the movement of thermal energy from a substance at a higher temperature to another at a lower temperature
6 0
3 years ago
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