Answer:
20 mph
Explanation:
Granny stopped from 50mph,
Her deceleration per unit time is
a = 50 - 0 = 50m/hr^2
This is also the amount of deceleration you experience per unit time (because both cars are identical), therefore your final speed with which you collide with the truck will be,
50 = 70 - v
V = 70 - 50 = 20mph
Answer:
conserving water is important because it keeps water pure and clean while protecting the inviorment
Answer:
“Insanity is relative. It depends on who has who locked in what cage.” R.D. Laing: “Insanity – a perfectly rational adjustment to an insane world.” Nora Ephron: “Insane people are always sure that they are fine. It is only the sane people who are willing to admit that they are crazy.”Sep 20, 2012
Explanation:
Answer:
0.117 m
Explanation:
First of all, we can find the wavelength of the wave in the problem, by using the wave equation:
where:
v = 350 m/s is the speed of the wave
f = 500 Hz is the frequency of the wave
is the wavelength
Solving for ,
This means that the distance between two consecutive points of the wave having a difference of phase of
is 0.7 m.
Here we want to find the distance between two points that have a difference of phase of
So, we can set up the following rule of three:
where d' is the distance we are looking for. Solving for d',
