Question: In each case, determine if the quantity or expression is a scalar, vector, or neither: ( a ) The speed of the wind if it

In each case, determine if the quantity or expression is a scalar, vector, or neither:
(a) The speed of the wind if it is blowing from the northwest.
(b) The differential of a function f(x, y).
(c) The gravitational field over the surface of the earth.
(

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