Having trouble with these two problems:

1) Region bounded by y= sqrt[x], y = 2, x =0

Find the area using the shell method by revolving the enclosed region around the following axis:

a) x-axis

b) y-axis

c) x=4

d) y=2

2) Find the volume of the solid generated by revolving the region bounded by the x-axis and the curve y=x sin x, 0≤x≤pi about,

a) y -axis

b) the line x= pi

Thanks!!