When we say toolmark, this describes as the mark that is produced by a particular tool. This is typically used in forensic science for identification. Based on the examples above, the one that is not the proper use of casting of a toolmark is option B. Hope this helps.
Using the kinematic equation below we can determine the distance traveled if t=2, a=7.4m/s^2. First we must determine the final velocity:

Now we will determine the distance traveled:

Therefore, the drag racer traveled 81.83 meters in 2 seconds.
Answer:
160 m
Explanation:
The intensity, I, of the sound is inversely proportional to the square of the distance, r, from the source.

Hence,


From the question,
is half of 


