A taxicab moves five blocks due north, five blocks due east, and another three blocks due north. Assume all blocks are of equal size. How far is the taxi from its starting point?
a. 13 blocks b. 9.4 blocks
c. 9.2 blocks d. 8.6 blocks
b
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A silicon rod 20 cm in diameter and 30 cm long is exposed to a high temperature at one end so that the end is at 400ºC whereas the remaining surfaces are at 60ºC. Estimate the centerline temperature distribution through the rod.
What will be an ideal response?
The rotation curve of the galaxy provides evidence for the existence of the ____________________ which extends beyond the halo of the galaxy
Fill in the blank(s) with correct word
Two identical balls are at rest side by side at the bottom of a hill. Some time after ball A is kicked up the hill, ball B is given a kick up the hill. Ball A is headed downhill when it passes ball B headed up the hill. At the instant when ball A passes ball B,
A. it has the same position and velocity as ball B. B. it has the same position and acceleration as ball B. C. it has the same velocity and acceleration as ball B. D. it has the same displacement and velocity as ball B. E. it has the same position, displacement and velocity as ball B.
As streams move downslope, channel dimension generally
A) decreases with decreased discharge. B) increases with decreased discharge. C) narrows. D) widens.