A Brian's Candy Sugar Wand Is Made from Flavored Sugar $V=\pi r^{2} h$

question 11

Essay

A Brian's candy sugar wand is made from flavored sugar inside a straw.The straw is 210 mm long and 5 mm in diameter.The child accidentally poked a hole in the bottom, making the height of the sugar fall at a rate of 1 mm per second.The child realizes that there is a hole after 1 seconds.What was the rate of change of the volume of the sugar at this time?
[ $V=\pi r^{2} h$ ]

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Definitions:

Control Groups

In experimental research, a group of subjects that does not receive the experimental treatment, serving as a comparison to evaluate the effect of the treatment.

Independent Variable

In an experiment, the independent variable is the factor that is manipulated to see if it causes a change in the outcome or dependent variable.

Nicotine

A stimulant and addictive substance found in tobacco, responsible for the habit-forming nature of tobacco use.

Placebo

A substance with no therapeutic effect, used as a control in testing new drugs or used to elicit a psychological benefit.