The "ringing sound" are actually the soundwaves travelling from the phone to your ears.
Well Bob would need to calculate to net force of someone going down a water slide. Since the person is going down the slide, the person will go faster, depending on their mass/weight and the gravitational pull. As phrased in Newton’s Second Law.
Newton’s Second Law:
Newton's second law of motion pertains to the behavior of objects for which all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object.
From the graph, the average acceleration between 5.0 s and 8.0 s is 2.33 ms^2.
<h3>What is acceleration?</h3>
The term acceleration has to do with the change in velocity with time. We can see that the graph shown is a graph of velocity against time, the slope of the graph is the acceleration.
Thus, the average acceleration between 5.0 s and 8.0 s can be read off from the graph as 20 m/s - 13m//8.0 s - 5.0 s = 2.33 ms^2.
Learn more about acceleration:brainly.com/question/12550364
#SPJ1
Answer:
greatest speed=0.99c
least speed=0.283c
Explanation:
To solve this problem, we have to go to frame of center of mass.
Total available energy fo π + and π - mesons will be difference in their rest energy:

=218 Mev
now we have to assume that both meson have same kinetic energy so each will have K=109 Mev from following equation for kinetic energy we have,
K=(γ-1)


note +-=±
To find speed least and greatest speed of meson we would use relativistic velocity addition equations:
