Answer:
Explanation:
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Answer:
Explanation:
power through string can be determined as shown in figure
Where
P = 57.3 W
V = 13.87 m/s
H = 567 g/m
we know that
therefore 
Answer:
a)
Explanation:
As the visible light, infrared and radio waves are all electromagnetic waves with different frequency and wavelength, all of them propagate through the space at the same constant speed which is the speed of light in vacuum, as they meet the following equation:
c = λ*f
Answer:
Hope this helps.
Explanation:
Let's start b writing down coordinates of all points:
A(0,0,0)
B(0,5,0)
C(3,5,0)
D(3,0,0)
E(3,0,4)
F(0,0,4)
G(0,5,4)
H(3,5,4)
a.) When we reflect over xz plane x and z coordinates stay same, y coordinate changes to same numerical value but opposite sign. Moving front-back is moving over x-axis, moving left-right is moving over y-axis, moving up-down is moving over z-axis.
A(0,0,0)
Reflecting
A(0,0,0)
B(0,5,0)
Reflecting
B(0,-5,0)
C(3,5,0)
Reflecting
C(3,-5,0)
D(3,0,0)
Reflecting
D(3,0,0)
b.)
A(0,0,0)
Moving
A(-2,-3,1)
B(0,-5,0)
Moving
B(-2,-8,1)
C(3,-5,0)
Moving
C(1,-8,1)
D(3,0,0)
Moving
D(1,-3,1)
