Amotorboat, which has a speed of 5.0 meters
per second in still water, is headed east as it
crosses a river flowing south at 3.3 meters per
second. what is the magnitude of the boat’s
resultant velocity with respect to the starting
point?
(1) 3.3 m/s (3) 6.0 m/s
(2) 5.0 m/s (4) 8.3 m/s

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

Lin yao looks at the back of a spoon. how should she describe her reflection? upside down and smaller upside down and larger right-side up and smaller right-side up and larger