
Actually Welcome to the Concept of the Waves.
Wavelength is the distance between two consecutive crest or trough.
hence, here the distance is 10cm
So the wavelength is 10cm
===> 10 cm
Answer:
2.30714 W
-16.38071 W
Explanation:
k = Heat conduction coefficient = 0.8 W/(m·°C)
A = Area = 2907 cm²
l = Thickness = 5.6 mm
= Outside temperature
= Inside temperature
Rate of heat transfer is given by

The rate of energy transfer is 2.30714 W

The rate of energy transfer is -16.38071 W
More force needs to be applied
Answer:
Reflective
Explanation:
The radiation pressure of the wave that totally absorbed is given by;

and While the radiation pressure of the wave totally reflected is given by;

Now compare the two-equation you can clearly see that the pressure due to reflection is larger than absorption therefore the sail should be reflective.
Answer:
<em>0.25</em>
Explanation:
According to newtons law of motion
\sum F_x = ma
F_f = ma
nR = ma
nmg = ma
ng = a
n = a/g
g is the acceleration due to gravity
Given
a = 2.42m/s²
g = 9.8m/s²
Substitute into the formula;
n = 2.42/9.8
n = 0.25
<em>Hence the coefficient of kinetic friction is 0.25</em>
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