Answer:
I believe the answer is frequency
Hope this helps!! (let me know if it is right)
Explanation:
Answer:
D. 21 ml
Explanation:
Since, the cylinder is marked and graduated in the intervals if 1 ml. Therefore, the values between two consecutive ml, such as between 30 ml and 31 ml can not be determined. Because, we do not have any scale in between the ml. So, the least count of this instrument is 1 ml. This graduated cylinder can give the answers to zero decimal places, accurately. And it can not determine any decimal value due to its graduating or the marking limitation. So, all the options given, contain a decimal value, except for the option D. In option D there is no decimal value, hence it is a correct answer.
D. <u>21 ml</u>
You can tell because the line bends and the closer it is to horizontal or past horizontal it is more dense
Answer: 26.67 m/s
Explanation:
Given
Length traveled by the ball 
Time taken to reach the goal post is 
Initial velocity 
Using the second equation of motion
Now using
The velocity of ball will be 26.67 m/s
