Answer:
Demagnetization processes include heating past the Curie point, applying a strong magnetic field, applying alternating current, or hammering the metal.
Explanation:
Answer:
None of the wavelength is in the visible range
Explanation:
Constructive interference of the reflected waves for different wavelengths can be estimated using:
λ
= 2nd/m
where m is 1,2,3, ...
Therefore:
m=1, λ
= 750 nm
m=2, λ
= 750/2 = 375 nm
The limits of eye's sensitivity is between 430 nm and 690 nm. Beyond this range, the eye's sensitivity drops to approximately 1% of its maximum value.
Answer:
a) 73.2N
b) 66.6N
c) 20.28N
Explanation:
F= mg=7.5×9.8=73.5N
Force parallel to the plane Fp= 73.5sin25= 31.06N
b) Fv= 73.5 cos25= 66.6N
c) Ff= u×Fv= 0.312×66.6=20.28N
a) Normal ForceFn= F/(cos25) - Fp - Ff = ma
1.1F -31.06-20.28=7.5×3.82
1.1F -51.84=28.65
1.1F= 28.65+51.84
F= 80.49/1.1
F= 73.2N
Plant and animal life, atmosphere and water are the major causes of weathering .
Volume=mass/density
volume=455.6/19.3
volume=23.6 mL