In spherical polar coordinates (P, θ, α), θ denotes the polar angle around z-axis and α denotes the azimuthal angle raised from x-axis. Then the y-component of \(\vec P\) is given by _______.

In spherical polar coordinates (P, θ, α), θ denotes the polar ang

1.	In spherical polar coordinates (P, θ, α), θ denotes the polar angle around z-axis and α denotes the azimuthal angle raised from x-axis. Then the y-component of \(\vec P\) is given by _______.
A.	P sin θ sin α
B.	P sin θ cos α
C.	P cos θ sin α
D.	P cos θ cos α
Answer» B. P sin θ cos α

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In spherical polar coordinates (P, θ, α), θ denotes the polar angle around z-axis and α denotes the azimuthal angle raised from x-axis. Then the y-component of \(\vec P\) is given by _______.

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