Answer:
v = 876 m/s
Explanation:
It is given that,
Number of mol of Neon is 2 mol
Temperature, T = 308 K
Mass, m = 0.02 kg
Value of R - 8.31 J/mol-K
We need to find the average velocity of atoms in 2.00 mol of neon. Neon is a monoatomic gas. Let v is the velocity. So,
![\dfrac{1}{2}mv^2=\dfrac{3}{2}nRT\\\\v=\sqrt{\dfrac{3nRT}{m}} \\\\v=\sqrt{\dfrac{3\times 2\times 8.314\times 308}{0.02}} \\\\v=876.47\ m/s](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B2%7Dmv%5E2%3D%5Cdfrac%7B3%7D%7B2%7DnRT%5C%5C%5C%5Cv%3D%5Csqrt%7B%5Cdfrac%7B3nRT%7D%7Bm%7D%7D%20%5C%5C%5C%5Cv%3D%5Csqrt%7B%5Cdfrac%7B3%5Ctimes%202%5Ctimes%208.314%5Ctimes%20308%7D%7B0.02%7D%7D%20%5C%5C%5C%5Cv%3D876.47%5C%20m%2Fs)
So, the correct option is (B).
Answer: false
Explanation: because if one car is at 2 m/s and the other at 1 m/s one would be farther away from the stating point
Pretty sure it is weather :))
Answer:
More than enough solar energy (8.2 million quad BTUs, 1 quad = 2.9 x1011 kWh) hits Earth's surface each year to meet all of societies' needs. Currently we use about 400 quads per year to run our society. Good building design allows passive use of sunlight to heat homes. Simple solar collectors are used to heat water and cook food. As useful as it is for these purposes, thermal energy from sunlight is still a low quality energy compared to electricity. Computers, most machinery, light bulbs, subway trains, and much more all require electricity. It is possible to turn thermal energy from the sun into electricity. In this unit we will examine how.
. We will also examine how to make electricity directly from light using the photovoltaic cells.
Answer:
![Impulse = 8.0Ns](https://tex.z-dn.net/?f=Impulse%20%3D%20%208.0Ns)
Explanation:
Given
![Force = 80.0N](https://tex.z-dn.net/?f=Force%20%3D%2080.0N)
![Mass = 0.25kg](https://tex.z-dn.net/?f=Mass%20%3D%200.25kg)
![Time = 0.10s](https://tex.z-dn.net/?f=Time%20%3D%200.10s)
Required
Determine the impulse
The impulse is calculated as follows:
![Impulse = Force * Time](https://tex.z-dn.net/?f=Impulse%20%3D%20%20Force%20%2A%20Time)
Substitute values for Force and Time
![Impulse = 80.0N * 0.10s](https://tex.z-dn.net/?f=Impulse%20%3D%20%2080.0N%20%2A%200.10s)
![Impulse = 8.0Ns](https://tex.z-dn.net/?f=Impulse%20%3D%20%208.0Ns)
<em>Hence, the impulse experienced is 8.0Ns</em>