Câu 2: Một vật chuyển động với gia tốc bằng không trong hệ quy chiếu quán tính thì A. vận tốc của vật bằng không B. vật chuyển động thẳng đều
C. không có lực tác dụng lên vật D. không có ma sát tác dụng lên vật

Imagine you work as a consultant, and your daily job involves listening to the constructive criticism of others. as part of your job, you must listen to opposing viewpoints to make important decisions. in this activity, you are a consulting dam engineer. you must make a decision about four different dams; should they be repaired, taken down, or left alone? you will listen to contrasting opinions about what should be done with the dams before you make the final decision. as the consulting dam engineer, what do you decide to do with this dam? explain your reasoning. by making your decision, did you support the opinions of the mayor and/or the dam safety official? why or why not? (site 1)

The coefficient of friction is a number that represents the resistance to sliding between two in contact with one another.

In order of decreasing light-transmitting capabilities of materials, which is the correct sequence? a. transparent -> translucent -> opaque b. opaque -> transparent -> translucent c. opaque -> translucent -> transparent d. translucent -> transparent -> opaque