A rock formed from the crystallization of magma is called an igneous rock. We know this rock forms from the cooling and / or solidification of lava or magma - usually from volcanoes, most of the time.
I think you get half of the magnetic field and that means half the power of the magnetic field.
Answer:
3.6m
Explanation:
if you are at a building that is 46m above the ground, and the professor is 1.80m, the egg must fall:
46m - 1.80m = 44.2m
the egg must fall for 44.2m to land on the head of the professor.
Now, how many time this takes?
we have to use the following free fall equation:
![h=v_{0}t+\frac{1}{2}gt^2](https://tex.z-dn.net/?f=h%3Dv_%7B0%7Dt%2B%5Cfrac%7B1%7D%7B2%7Dgt%5E2)
where
is the height,
is the initial velocity, in this case
.
is the acceleration of gravity:
and
is time, thus:
![h=\frac{1}{2}gt^2](https://tex.z-dn.net/?f=h%3D%5Cfrac%7B1%7D%7B2%7Dgt%5E2)
clearing for time:
![2h=gt^2\\\frac{2h}{g}=t^2\\\sqrt{\frac{2h}{g}} =t](https://tex.z-dn.net/?f=2h%3Dgt%5E2%5C%5C%5Cfrac%7B2h%7D%7Bg%7D%3Dt%5E2%5C%5C%5Csqrt%7B%5Cfrac%7B2h%7D%7Bg%7D%7D%20%3Dt)
we know that the egg has to fall for 44.2m, so
, and
, so we the time is:
![t=\sqrt{\frac{2(44.2m)}{9.8m/s^2} }=\sqrt{\frac{88.4m}{9.81m/s^2} } =\sqrt{9.011s^2}= 3.002s](https://tex.z-dn.net/?f=t%3D%5Csqrt%7B%5Cfrac%7B2%2844.2m%29%7D%7B9.8m%2Fs%5E2%7D%20%7D%3D%5Csqrt%7B%5Cfrac%7B88.4m%7D%7B9.81m%2Fs%5E2%7D%20%7D%20%3D%5Csqrt%7B9.011s%5E2%7D%3D%203.002s)
Finally, if the professor has a speed of
, it has to be at a distance:
![d=vt](https://tex.z-dn.net/?f=d%3Dvt)
and t=3.002s:
![d=(1.2m/s)(3.002s)=3.6m](https://tex.z-dn.net/?f=d%3D%281.2m%2Fs%29%283.002s%29%3D3.6m)
so the answer is the professor has to be 3.6m far from the building when you release the egg
When the ball goes upward, the velocity is decreasing. Therefore, the kinetic energy is decreased. The potential energy when the ball's height increases also increases. When the ball reaches maximum, the velocity becomes zero and the kinetic energy is minimum.
Answer:New technology can provide cleaner energy for the environment
Can also help clean the environment.
Explanation:
Which option is potentially environmental benefit of adopting a new technology?