Answer:
the second one!
Explanation:
the question is well, the question, a hypothesis is an educated guess on what you think will be the outcome
Acceleration= change in velocity/time
The centripetal acceleration is given by

where v is the tangential speed and r the radius of the circular orbit.
For the car in this problem,

and r=40 m, so we can re-arrange the previous equation to find the velocity of the car:
Wave Interference or Interference of wave
B) using a blood pressure monitor to find a patient's blood pressure.
Hope this helped!