Answer:
The energy of the photon from the higher-wattage bulb is equal to the energy of the photon from the lower-wattage bulb.
Explanation:
Answer:
d. 0V
Explanation:
The magnitude of four point charges are +3q, -q, +2q and -4q. I think you forget to mention the signs.
As we know that the potential due to the point charge that has traveled the distance d can be represented mathematically as,
= 1/4λε = 9× Nm²/C²
Now as it is mentioned in the question that all four charges are arranged in the corners of a square so there distance from the center is same. We can rewrite the above potential equation as follows.
(1)
We can find out d by the pythagoras theorem, as we are dealing with square so d is a semi diagonal.
by putting all values in equation (1)
V =
V = 0V
Sure. The kinetic energy at the bottom comes from the potential energy
that it had at the top, and the potential energy depends on the height where
it starts from. So the apple that falls from the highest height has the most
potential energy when it starts falling, and the most kinetic energy when
it's done falling.
SIMILARLY ...
If you fall off of the table, you land with more kinetic energy than if you
fall off of a book on the floor.
Answer:
Yes, dimensionally the equation is correct.
Explanation:
This equation is the kinematic equation for uniformly accelerated motion, then we study the units of each member to conclude whether it is dimensionally correct.
vi = initial velocity [m/s]
a = acceleration [m/s^2]
t = time [s]
v = final velocity
therefore we have:
[m/s] + [m/s^2]*[t^2], the second term now is m/s
[m/s] + [m/s] = [m/s]
So the analysis is correct.
The first choice is closest to being an accurate description.