Multiple Choice
The motor of a small boat produces a speed of 3 mph in still water. The boat is travelling in flowing water with a current velocity given by . In what direction should the boat head to travel due east? (Represent the direction with a unit vector.)
A) i
B)
C)
D) The boat cannot travel due east against this current.
Correct Answer:

Verified
Correct Answer:
Verified
Q45: Find the vector with the given polar
Q46: Compute <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB2342/.jpg" alt="Compute .
Q47: If <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB2342/.jpg" alt="If ,
Q48: Identify the surface. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB2342/.jpg" alt="Identify the
Q49: Sketch the given plane. y + 2z
Q51: Find symmetric equations of the line through
Q52: Find an equation of the plane containing
Q53: Compute the cross product a × b.
Q54: Assume that the ball is moving into
Q55: Find proj<sub>b</sub><sub> </sub>a for the given vectors.