皮皮学，免费搜题
登录
搜题
【简答题】
书架上有两层图书，第一层有图书208本，第二层有12中本，每次从第一层拿2本放入第二层．拿几次后，两层图书的本数相等？
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】用括号里的词的正确形式填空。 1. In the past, only a few children could get a good (educate). 2. After (finish) his homework, he went to bed. 3. Mike said that the sun (be) bigger than the moon. 4. Don't forget (clo...
【简答题】They had worked hard to earn more money in order to give their daughter a good (educate) .
【单选题】If an object of mass m moves with constant velocity v, the net force on the object is
A.
mg
B.
mv
C.
mv/t
D.
0
E.
None of these answers is correct.
【单选题】An object of mass 0.50 kg, hanging from a spring with a spring constant of 8.0 N/m, is set into a simple harmonic motion. What is the maximum speed of the object if its maximum displacement is 0.10 m?
A.
0.20m/s
B.
0.40m/s
C.
0.80m/s
D.
1.60m/s
【单选题】If an object of mass m moves with constant velocity v, the net force on the object is
A.
mg
B.
mv
C.
mv/t
D.
0
【单选题】A constant force of 20 N is applied to an object of mass 8.0 kg at an angle of 25° with the horizontal. What is the work done by this force on the object if it causes a displacement of 2.0 m along the...
A.
40 J
B.
0 J
C.
36 J
D.
19 J
【单选题】He is _______ scolding his child , which is not a good way to educate him.
A.
often
B.
usually
C.
always
D.
frequently
【简答题】They have a good _______( educate).
相关题目：