Answer:
Part a)
Part b)
Part c)
Explanation:
Part a)
As we know that the friction force on two boxes is given as
Now we know by Newton's II law
so we have
Part b)
For block B we know that net force on it will push it forward with same acceleration so we have
Part c)
If Alex push from other side then also the acceleration will be same
So for box B we can say that Net force is given as
soy de texas, united states
Answer:
newtons law of force
newtons law of force explains that something may or can or canot move depending on the objexts mass.
<span>The reason why the shapes of the continents as of
today do not perfectly fi into to super continent because long time ago the
super continent was scattered into pieces. And as times go by, those smaller
parts of super continents undergo soil erosion caused by the water and other
way that causes their original shapes change.
Thus, if we are going to judge now if those smaller part of super continent,
they’re no longer gonna fit perfectly because through time their original form
changed</span>
Answer: The observer must walk 0.2897m towards either speaker.
Explanation:
Let us make distance between the two speakers to be =D
frequency emitted by the two speakers in phase=f
v= speed of sound, 343 m/s
λ=wavelength
---- solving for λ, wavelength, using the equation λ=v/f. 343/296
= 1.15878m
Also destructive interference is given as
⎮d1-d2⎮=λ/2
Because the observer should be able to walk far enough to make the distance to one speaker differ from the distance to the other speaker by ½ wavelength.
This will give us
d1-d2= 1.15878 /2
d1-d2=0.5794m
For the distance moved on either side, we have D/2
Therefore 0.5794/2=distance to move on either side. Giving us
0.2897m
In conclusion, This means that the observer has to walk so as to be 0.5794m closer to one speaker from another; this means walking 0.2897m towards either speaker.