Identify the quadrant or quadrants for the angles satisfying the following conditions. $\sin \alpha>0$ and $\cos \alpha<0$

Step 1 ：The problem is asking for the quadrant or quadrants where the sine of an angle is positive and the cosine of the same angle is negative.

Step 2 ：In the unit circle, the sine of an angle corresponds to the y-coordinate and the cosine of an angle corresponds to the x-coordinate.

Step 3 ：The sine of an angle is positive in the first and second quadrants, and the cosine of an angle is negative in the second and third quadrants.

Step 4 ：The quadrant where both conditions are satisfied is the second quadrant.

Step 5 ：Final Answer: \(\boxed{2}\)