A cave explorer travels 15 m west, then 25 m north, and finally 3 m east. What is his resultant displacement? *
40 m, W
80 m, 25 degrees E of S
120 m, N
28 m, 64 degrees N of W

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

Current from a charged capacitor lights a bulb. as time goes on the brightness of the

Aviolently rotating column of air is formed around a region of extremely low air pressure above land. which of these weather conditions is most likely to follow? blizzard cyclone tornado hurricane