Answer:
it would make sense because a larger body could produce more body heat.
Answer:
the final kinetic energy is 0.9eV
Explanation:
To find the kinetic energy of the electron just after the collision with hydrogen atoms you take into account that the energy of the electron in the hydrogen atoms are given by the expression:
you can assume that the shot electron excites the electron of the hydrogen atom to the first excited state, that is
-10.2eV is the energy that the shot electron losses in the excitation of the electron of the hydrogen atom. Hence, the final kinetic energy of the shot electron after it has given -10.2eV of its energy is:
Answer:
i dont think anything will happen so maybe A: the wall is larger than you.
Explanation:
Answer:
Explanation:
Hi! It would be A. Plane mirrors produce only virtual images,and concave mirrors produce real and virtual images.
Answer:
Explanation:
The net work of the cycle is the sum of works in each process.
<u>For the first process 1-2: </u> Let's apply the work definition.
(1)
Now, we need the pressure. We know that pV=C, where C is a constant. Then
So
Let's put p in (1):
Using the first law of thermodynamics we can find Q.
<u>Second process 2-3</u>
In this case, we have a constant volume, so the work done here is 0.
<u>Third process 3-1</u>
Finally, the net work is:
By the conservation of energy:
Because there is no change in total energy.
So:
It is a refrigerator because the net work is negative, it means it consumes energy.
I hope it helps you!