Physics Exam5,8

2007-01-05 10:43 pm
Bernoulli's principle is a statement of the:
a. Conservation of linear momentum.
b. Conservation of mass.
c. Conservation of energy.
d. Conservation of angular momentum
During the time that the acceleration of a particle is constant, its velocity-vs-time curve is:
a. A straight line.
b. A parabola opening downward.
c. A parabola opening upward.
d. A curve other than a parabola.

回答 (1)

2007-01-05 10:50 pm
✔ 最佳答案
第一題C
流體因受力的作功 + 流體損失的位能 = 流體所得的動能
第二題A
因為velocity-vs-time curve IS straight line
代表斜率常數
即acceleration of a particle is constant (A=DV/DT)


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