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Sophie [7]
3 years ago
15

How does the direction of the electric current, moving across a battery powered device, differ from the direction of travel in t

he AC current sent to homes and businesses?
Physics
2 answers:
svetoff [14.1K]3 years ago
8 0
They both have different wave traction's
amm18123 years ago
6 0
Different wave tractions 



Hope this helps :D
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The force exerted by the machine is the _____
Neporo4naja [7]
Output Force, hope this helps.
4 0
2 years ago
True or false compounds only have one type of element
klasskru [66]

False, Compounds can contain more than 2 elements.

8 0
3 years ago
The noble gases neon (atomic mass 20.1797 u) and krypton (atomic mass 83.798 u) are accidentally mixed in a vessel that has a te
vagabundo [1.1K]

Answer:

(a) Kav Ne = Kav Kr = 7.29x10⁻²¹J

(b) v(rms) Ne= 659.6m/s and v(rms) Kr= 323.7m/s

Explanation:

(a) According to the kinetic theory of gases the average kinetic energy of the gases can be calculated by:

K_{av} = \frac{3}{2}kT (1)        

<em>where K_{av}: is the kinetic energy, k: Boltzmann constant = 1.38x10⁻²³J/K, and T: is the temperature </em>

<u>From equation (1), we can calculate the</u><u> average kinetic energies for the krypton and the neon:</u>

K_{av} = \frac{3}{2} (1.38\cdot 10^{-23} \frac{J}{K})(352.2K) = 7.29\cdot 10^{-21}J  

(b) The rms speeds of the gases can be calculated by:

K_{av} = \frac{1}{2}mv_{rms}^{2} \rightarrow v_{rms} = \sqrt \frac{2K_{av}}{m}  

<em>where m: is the mass of the gases and v_{rms}: is the root mean square speed of the gases</em>

For the neon:

v_{rms} = \sqrt \frac{2(7.29 \cdot 10^{-21}J)}{20.1797 \frac{g}{mol} \cdot \frac {1mol}{6.022\cdot 10^{23}molecules} \cdot \frac{1kg}{1000g}} = 659.6 \frac{m}{s}          

For the krypton:

v_{rms} = \sqrt \frac{2(7.29 \cdot 10^{-21}J)}{83.798 \frac{g}{mol} \cdot \frac {1mol}{6.022\cdot 10^{23}molecules} \cdot \frac{1kg}{1000g}} = 323.7 \frac{m}{s}  

Have a nice day!

3 0
3 years ago
Describe at least two ways nuclear fission was used in the twentieth century
allsm [11]

Is there any options or just a type up answer?

3 0
2 years ago
Which of the following can sometimes be zero for a moving body i average velocity ii distance travelled iii average speed iv dis
Anika [276]

Answer:

<h3>displacement can be zero...because it only care about initial and final positions</h3>

3 0
3 years ago
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