对应课程:点击查看
起止时间:2021-09-13到2022-01-24
更新状态:暂停更新
Week 1 Lesson 1 Assignment for Lesson 1
1、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (2)
2、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (3)
3、 The dot product can be used to find all of the following except ( ).
A:sum of two vectors
B:angle between two vectors
C:component of a vector parallel to another line
D:component of a vector perpendicular to another line
答案: sum of two vectors
4、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (1);
(4)
5、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (2);
(4)
6、 The subject called Statics studies only bodies which are at rest.
A:正确
B:错误
答案: 错误
分析：The subject called statics studies the bodies which are either at rest or move with a constant velocity.
7、 A rigid body has a mass but negligible shape/size.
A:正确
B:错误
答案: 错误
分析：A rigid body has both a mass and shape/size.
8、 A particle has a mass but negligible shape/size.
A:正确
B:错误
答案: 正确
Week 1 Lesson 2 Assignment for Lesson 2
1、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (3)
2、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (3)
3、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (3)
4、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (4)
5、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (3)
6、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (4)
7、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (1);
(2);
(4)
8、 
A:(1)
B:(2)
C:(3)
D:(4)
答案: (2);
(3);
(4)
Week 2 Lesson 3 Test of Chapter 1-2.
1、 
A:(1)
B:(2)
C:(3)
D:(4)
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