Free
登录
Question
Test
Premium
News
Answer
Course
Wish Board
题库
Science
题目列表
What is the efficiency of an engine that consumes...
Text
What is the efficiency of an engine that consumes 7500 Joules of energy to load a box that requires 4500 Joules of work?
Show Solution
上一题
[单选题] What astronomical measurement is analogous to latitude?
下一题
[单选题] In a vacuum, all photons have the same:
纠错
题目信息
Normal
MiddleSchool
-
正确率
0
评论
0
点击
Favorite
Favorite
Mistake Journey
Mistake Journey
My Notes
Logon to Add Notes