Answer:
Refractive index = 1.15
Explanation:
As we know for constructive interference of reflected light the path difference of two reflected light rays must be integral multiple of the wavelength
so here we have
now here we know that
now we have
Answer:
The voltage is
Explanation:
From the question we are told that
The voltage of the battery is
The capacitance of the capacitor is
The resistance of the resistor is
The time taken is
Generally the voltage of a charging charging capacitor after time t is mathematically represented as
Here is the voltage of the capacitor when it is fully charged which in the case of this question is equivalent to the voltage of the battery so
Answer:
160 watts.
Explanation:
Remark
Power = Work / Time
Work = F * d
Note: Since he is running up stairs he is doing work against gravity.
Givens
- m = 50000 g kg / 1000 grms
- m = 50000 / 1000 = 50 kg
- h = 4 m
- time = 12.5 seconds
- g = 10 m/s^2
Formula
- P = W * d/t
- W = m*g *d / t
Solution
- P = 50kg * 10 m/s^2 * 4 m / 12.5
- <em><u>P = 160 watts. </u></em>
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Think of it like this. If you have a cart full of heavy potatoes, it would be hard to push the cart. That is inertia. Because of its weight and gravitational pull, there is inertia.
I believe it’s self-referent encoding