Answer:
s(t)=7t
Explanation:
We are given that
Length of side of square initially=0 cm
Side of square increasing at the rate=7 cm/s
We have to find the formula to express the side length of the square s(in cm) in terms of the number of seconds t.
According to question
Taking integration on both sides then, we get
Substitute t=0 and s=0
Now, substitute the value of C then, we get
s(t)=7t
This is required formula that express the side length of the square s(in cm) in terms of the number of seconds t, since the square's side length began growing.
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The full question is:
On a keyboard, you strike middle C, whose frequency is 256 Hz. What is the period of one vibration of this tone?
The period of a vibration is the time it takes for the particle to make one full oscillation. Frequency is by definition number of full oscillations per unit of time.
When the frequency is expressed in Hz that unit of time is one second.
So there is the following relation between frequency and period:
When we plug in the numbers we get: