The marble's volume is equal to 1.2
Density= mass/volume
Mass= 3.05 Grams
Volume= 1.2 cm^3
3.05/1.2= 2.92 <span>g/mL</span>
The magnet is at a gravitational force while the paper clip is at an applied force
Ice at -25
Hope this helps
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Answer:
a)
b)
c)
d)
Explanation:
From the question we are told that:
Diameter
Conductivity
Electron mobility
Electric field
a)
Generally the equation for Charge Density is mathematically given by
Therefore
b)
Generally the equation for current density is mathematically given by
c)
Generally the equation for current in wire is mathematically given by
d)
Generally the equation for electron draft velocity. is mathematically given by
Answer:
The minimum thickness of the material is 114.5 nm
Explanation:
The remaining part of the question is as follows
What should the minimum thickness of the material be for it to be nonreflecting for light of wavelength 600 nm (in a vacuum)? Please give details of your reasoning.
Both reflections occur against a surface of higher index of refraction, so there is a phase shift at each reflection. The phase shifts cancel each other out, so if we want the emerging rays to be out of phase, we must have
Given
Index of refraction = 1.31
Index of refraction = 1.43
As we know
Here t is the thickness
represents the phase shift
n is the refraction index
Substituting the given values we get
nm