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Elis [28]
3 years ago
6

The major contribution of the French philosopher Rene Descartes was in the realm of

Physics
2 answers:
ss7ja [257]3 years ago
7 0
The correct answer (d.) epistemology. The major contribution of the French philosopher Rene Descartes was in the realm of epistemology. Epistemology is the theory of knowledge, including methods, validity, and its scope. It could also be concluded to separate justified fact from an opinion.
Alex Ar [27]3 years ago
3 0
The answer is epistemology. So d epistemology.


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What is the RMS speed of Helium atoms when the temperature of the Helium gas is 206.0 K? (Possibly useful constants: the atomic
saw5 [17]

Answer:

a)1.13×10³

b)1.6×10³

Explanation:

Given:

Boltzmann's constant (K)=1.38×10^-23 J/K

atmoic mass of helium = 4 AMU or 4×1.66×10^-27kg

a)The formula for RMS speed (Vrms) is given as

Vrms=\sqrt{\frac{3KT}{m} }

where

K= Boltzmann's constant

T= temperature

m=mass of the gas

Vrms=\sqrt{\frac{3\times 1.38\times 10^{-23}\times 206}{6.64\times 10^{-27}}}

Vrms=1.13\times 10^{3}m/s

b) RMS speed of helium when the temperature is doubled

Vrms=\sqrt{\frac{3\times 1.38\times 10^{-23}\times 2\times 206}{6.64\times 10^{-27}}}

Vrms=1.598\times 10^{3}m/s

4 0
3 years ago
Read 2 more answers
A 100 Ω resistive heater in a tank of water (1kg) increases its temperature from 10°C to 20°C over a period of 1 hour. During th
Nookie1986 [14]

Answer:48.52 kJ

Explanation:

Given

Resistance=100 \Omega

temperature increases from 10^{\circ}C to 20^{\circ}C

Voltage=50 V

Heat given(H)=\frac{V^2t}{R}

Where V=voltage applied

t=time

R=Resistance

H=\frac{50^2\times 60\times 60}{100}=90 kJ

Heat absorbed by water is

Q=mc(\Delta T)

where

m=mass of water

c=specific heat of water

\Delta T=change in temperature

Q=1000\times 4.184\times (20-10)=41.48 kJ

Therefore  90-41.48=48.52 kJ is not absorbed by water and leaves the system into the surroundings.

8 0
3 years ago
A 65kg person throw a 0.045kg snowball forward with a ground speed of 30m/s. A second person, with a mass of 60kg, catches the s
Kobotan [32]
Well, st first we should find <span>initial momentum for the first person represented in the task which definitely must be :
</span>(65+0.045)*2.5
And then we find the final one :  65*x + 0.045*30
Then equate them together : x=2.48 m/s 
So we can get the velocity, which is is 2.48 m/s
In that way, according to the main rules of <span>conservation of momentum you can easily find the solution for the second person.
Regards!</span>
6 0
3 years ago
The force that binds atoms together to form molecules is
DIA [1.3K]

Answer:

The electromagnetic force

Explanation:

There are four fundamental forces in nature:

- Gravitational force: it is the force that acts between any particles having mass. It is relevant only on very large scales (planets, stars), since it is the weakest of the 4 forces, so very large masses are needed in order to produce relevant effects.

- Electromagnetic force: it is the force that acts between particles with electric charge. It can be attractive or repulsive. It is the main force that acts between atoms and molecules.

- Strong nuclear force: it is the force that keeps the protons and the neutrons together inside the nucleus. It acts only on very short scales (only within the nucleus of the atom)

- Weak nuclear force: it is the force responsible for the radioactive decays of certain nuclei. It also acts on very short scales.

Therefore, the force that is responsible for binding atoms together to form molecules is the electromagnetic force.

7 0
3 years ago
What is the difference between sodium atom and a sodium ion
ludmilkaskok [199]
Pretty much any element(in your case sodium) contain these properties.

Atoms can be an ion, but not all ions are atoms. The difference between an atom and an ion has to do with net electrical charge. An ion is a particle or collection of particles with a net positive or negative charge. ... A stable atom contains the same number of electrons as protons and no net charge
7 0
3 years ago
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