If mass remains the same while the volume increases, the density of the substance will decrease.
If mass remains the same while the volume decreases, the density of the substance will increase.
Answer:
There is a localization of negative charge near the door handle.
D.) Asteroids
Asteroids are large rocks that orbit the sun. They aren't considered planets since they are smaller.
Answer:
The final speed will be "
".
Explanation:
The given values are:
Potential difference,
Δv = 400 v
Radius,
r = 0.5580 cm
As we know,
⇒ ![W=e \Delta v](https://tex.z-dn.net/?f=W%3De%20%5CDelta%20v)
and,
⇒ ![\frac{1}{2}mv^2=e \Delta v](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7Dmv%5E2%3De%20%5CDelta%20v)
then,
⇒ ![v=\sqrt{\frac{2e \Delta v}{m} }](https://tex.z-dn.net/?f=v%3D%5Csqrt%7B%5Cfrac%7B2e%20%5CDelta%20v%7D%7Bm%7D%20%7D)
On substituting the values, we get
⇒ ![=\sqrt{\frac{2\times 1.6\times 10^{-19}\times 400}{9.11\times 10^{-31}} }](https://tex.z-dn.net/?f=%3D%5Csqrt%7B%5Cfrac%7B2%5Ctimes%201.6%5Ctimes%2010%5E%7B-19%7D%5Ctimes%20400%7D%7B9.11%5Ctimes%2010%5E%7B-31%7D%7D%20%7D)
⇒ ![=\sqrt{\frac{1.6\times 10^{-19}\times 800}{9.11\times 10^{-31}}}](https://tex.z-dn.net/?f=%3D%5Csqrt%7B%5Cfrac%7B1.6%5Ctimes%2010%5E%7B-19%7D%5Ctimes%20800%7D%7B9.11%5Ctimes%2010%5E%7B-31%7D%7D%7D)
⇒ ![=1.185\times 10^7 \ m/sec](https://tex.z-dn.net/?f=%3D1.185%5Ctimes%2010%5E7%20%5C%20m%2Fsec)