Atomic mass can change through the process of fusion. Another way is, it can also change in nuclear fusion.
Answer:
t = 6.68 seconds
Explanation:
The acceleration of the automobile, ![a=0.54\ m/s^2](https://tex.z-dn.net/?f=a%3D0.54%5C%20m%2Fs%5E2)
Initial speed of the automobile, u = 91 km/hr = 25.27 m/s
Final speed of the automobile, v = 104 km/hr = 28.88 m/s
Let t is the time taken to accelerate from u to v. It can be calculated as the following formula as :
![t=\dfrac{v-u}{a}](https://tex.z-dn.net/?f=t%3D%5Cdfrac%7Bv-u%7D%7Ba%7D)
![t=\dfrac{28.88-25.27}{0.54}](https://tex.z-dn.net/?f=t%3D%5Cdfrac%7B28.88-25.27%7D%7B0.54%7D)
t = 6.68 seconds
So, the time taken by the automobile to accelerate from u to v is 6.68 seconds. Hence, this is the required solution.
You can hear a difference between these two sounds. That is because their pitch isdifferent. Pitch depends on the frequency of a sound wave. ... High sounds have highfrequencies and low sounds have lowfrequencies.
Answer: 27.21 V
Explanation:
The <u>electric potential</u>
due to a point charge is expressed as:
![V_{E}=k\frac{q}{r}](https://tex.z-dn.net/?f=V_%7BE%7D%3Dk%5Cfrac%7Bq%7D%7Br%7D)
Where:
is the <u>electric constant</u>
is the <u>electric charge of the hydrogen nucleus</u>, which is positive
is the <u>distance</u>
Rewritting the equation with the known values:
![V_{E}=9(10)^{9}\frac{Nm^{2}}{C^{2}}\frac{1.6(10)^{-19}C}{5.292(10)^{-11}m}](https://tex.z-dn.net/?f=V_%7BE%7D%3D9%2810%29%5E%7B9%7D%5Cfrac%7BNm%5E%7B2%7D%7D%7BC%5E%7B2%7D%7D%5Cfrac%7B1.6%2810%29%5E%7B-19%7DC%7D%7B5.292%2810%29%5E%7B-11%7Dm%7D)
Finally:
Planets in our solar system do not revolve around the sun in perfect circles. Their orbits are more like ovals that scientists describe as elliptical. It is one of Kepler's laws. The sun is the focus of all the planets. The correct answer is D.