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1学生版Background Information of Lesson 10 - 副本.docx 1.2 Outline of Lesson 10 学生版Notes on the English Character.docx
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【简答题】An instrument to
measure the acceleration of gravity on Mars is constructed of a spring
from which is suspended a mass of 0.24(kg). At a place on earth where the
local acceleration of gravity is 9....
【单选题】The acceleration of a projectile is:
A.
g
B.
-g
C.
0
D.
dependent on its initial velocity
【简答题】梁长为 L 的悬臂梁 AB ,抗弯刚度为 EI 。已知图( 2 )载荷下 B 截面的挠度 ,转角 。则图( 1 )载荷下,梁 B 截面的挠度为 。(保留三位小数)
【简答题】在下图所示电路中，分别按下列要求接成所需的两级放大电路。
【简答题】An instrument to measure the acceleration of gravity on Mars is constructed of a spring from which is suspended a mass of 0.24(kg). At a place on earth where the local acceleration of gravity is 9.80(...
【单选题】A rock is thrown off a 35 m cliff at a 45° angle above the horizontal. Which is the following is true regarding the acceleration of the rock?
A.
The acceleration will be of magnitude g and have both horizontal and vertical components.
B.
At the peak of the rock’s path, the magnitude of acceleration will be half of what it was when the rock was initially thrown.
C.
The acceleration will be of magnitude g and in a downward direction.
D.
The acceleration will be downward during the rock’s ascent and upward during the rock’s descent.
E.
The acceleration will increase throughout the rock’s flight .
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