$\text { Write inequalities to describe the solid upper hemisphere of the sphere of radius } 3 \text { centered at the origin. }$

Q32: A bicycle pedal is pushed by

Q33: Find the work done by a

Q34: Find the distance between the point

Q35: Find the length of the median

Q36: Find an equation for the surface

Q38: Calculate the given quantities if

Q39: Find a nonzero vector orthogonal to

Q40: Find the distance between the planes.

Q41: Find the unit vectors that are

Q42: Velocities have both direction and magnitude