<span>b. weakens as 1/d, where d is the distance between objects.</span>
Answer:
The energy is dissipated in the resistor at the rate of 0.482 W
Explanation:
Given :
Potential difference resistor 12 V
Energy dissipated in the resistor 0.630 W
New potential difference 10.5 V
We know that energy dissipated per unit time through resistor is given by,
⇒
Rate of energy dissipated is proportional to the square of the applied potential.
So for new potential we can write,
W
So new rate of energy dissipation is 0.482 W
Answer:
Wavelength of the light is 750 nm.
Explanation:
Given that,
Spacing between the lines,
Order of the grating, n = 2
The second order is formed at an angle of 48.5°. The equation of diffraction grating is given by :
or
So, the wavelength of the light is 750 nm. Hence, this is the required solution.
Answer:
Value of each charge is given as
Explanation:
As we know that electrostatic force between two charges is given as
here we know that
r = 0.100 m
now we have
I apologise if this is confusing, if it doesn’t make sense just comment and I’ll try to explain it better. :)
Let’s seperate the four directions into two categories: north + south, and east + west.
John’s movements in regards to a north/south direction over the course of the entire placement:
8 north, 8 south (6 + 2 steps = 8 steps south)
In total, John moved both north and south 8 times each.
8 - 8 = 0, therefore canceling out any north/south movement. At this stage, John has not moved from his starting position.
John’s movement in regards to east/west:
6 west, 3 east.
Since he has not moved an equal amount of steps west and east means he HAS moved from his starting point.
In order to find John’s displacement, we must take his east steps from his west steps.
6 - 3 = 3
This means John’s displacement from his starting point is 3 steps west.