- #1
thegame
- 32
- 0
Hi,
I need to find the uncertainty on cos(theta) given:
theta = 5 plus/minus 0.1 degrees
what is the uncertainty on cos(theta)? [propagation of error]
2)
Suppose I measured the time taken by the pendulum to complete one oscillation. So the pendulum moves downward and I start the stopwatch. Then the pendulum completes one oscillation and I stop the stopwatch.
Is the ucertainty 0? Let's say my reaction time is 0.17 sec. So, when I see the pendulum move down, I start the clock 0.17 seconds late (which is the time taken by the brain to intrepret the signal). And at the end, I stop the pendulum 0.17 seconds later after the event has occured...
I need to find the uncertainty on cos(theta) given:
theta = 5 plus/minus 0.1 degrees
what is the uncertainty on cos(theta)? [propagation of error]
2)
Suppose I measured the time taken by the pendulum to complete one oscillation. So the pendulum moves downward and I start the stopwatch. Then the pendulum completes one oscillation and I stop the stopwatch.
Is the ucertainty 0? Let's say my reaction time is 0.17 sec. So, when I see the pendulum move down, I start the clock 0.17 seconds late (which is the time taken by the brain to intrepret the signal). And at the end, I stop the pendulum 0.17 seconds later after the event has occured...