Final answer:
To calculate the time per beat if the heart rate is 150 beats per minute during strenuous exercise, divide 60 seconds by 150, resulting in 0.4 seconds per beat. For the oscillation frequency of a tuning fork with an oscillation period of 2.50×10^-3 s, the frequency is the inverse, which is 400 Hz.
Step-by-step explanation:
Calculating Time Per Beat and Oscillation Frequency
To find the time per beat in seconds when the heart rate is 150 beats per minute, you divide the number of seconds in a minute by the number of beats per minute. There are 60 seconds in one minute, so if you have 150 beats per minute, the calculation would be:
Time per beat = 60 seconds ÷ 150 beats = 0.4 seconds per beat.
This calculation is vital for understanding heart rate during strenuous exercise. Additionally, for the frequency of a tuning fork that takes 2.50×10-3 s to complete one oscillation, the frequency would be the inverse of the time period:
Frequency (f) = 1 / Time period = 1 / (2.50×10-3 s) = 400 Hz.