Explain what happens to the pitch of a cell phone ring when the amplitude of a sound wave increases. justify your reasoning using complete sentences and key vocabular

In an experiment, how can i change human errors? be specific.

As the distance from a magnet increases, what happens to the magnet force?

The particle p starts from rest at point a at time t = 0 and changes its speed thereafter at a constant rate of 2.8g as it follows the horizontal path shown. determine the magnitude and direction of its total acceleration (a) just before point b, (b) just after point b, and (c) as it passes point c. state your directions relative to the x-axis shown (ccw positive) and choose the angle with the smallest magnitude.