B is a trough.
A trough is the opposite of a crest, in that it occurs at the maximum negative displacement of a wave.
In this problem, A would be the crest, C would be the wavelength, and D would be the amplitude.
Hope this helps!! :)
Answer:
100 m/s
Explanation:
Let find the velocity components first
Fx = 100 * cos (37) = 79.86 m/s
Fy = 100 * sin (37) = 60.18 m/s
applying motion equations
assuming no acceleration in horizontal direction we can assure that the ending velocity component will still remain Fx = 79.86 m/s
- Vertical motion (upwards)
V² = U² +2as
= 60.18² + 2*(-10)*0
Fy = 60.18 m/s
Total speed = √(F²x+F²y) = 100 m /s
*** You can take the same answer considering the Energy
This Question has mistakes.Correct question is
An undamped oscillator has period τo=1.000s
, but I now add a little damping so that its period changes to τ1=1.001s.
What is the damping factor β? By what factor will the amplitude of oscillation decrease after 10 cycles? Which effect of damping would be more noticeable, the change of period or the decrease of the amplitude?
Answer:
β=0.28 /sec
Amplitude=0.0606
Explanation:
