Answer:
a) -3.267 m/s
b) 2.227 m/s
Explanation:
As per the conservation of momentum
m1v1 + m2v2=0
m1= mass of log
m2 = mass of lumber jack
v1 = velocity of log
v2 = velocity of lumber jack
a) Velocity of first log
m/s
b) m1v1 + m2v2 = m3v3
Velocity of log
=
D) the north star is not part of our solar system...
hope this helps!
Answer:
E=26779230N/C(option 5)
Explanation:
Let Lamda be charge per lenght=73*10^-6c/m
Distance r=4.9cm =0.049m
Coulomb constant k=8.98755*10^9
But electric field is 2*k*lamda/r
E=(2*8.98755*10^9*73*10^-6)/0.049
E=26779230N/C
The mass in one period travels 'a distance<u> less than 25 cm </u>which will be 0.
<h3>
What is amplitude of a pendulum?</h3>
The amplitude of a pendulum is the maximum displacement of the pendulum.
If the maximum displacement of the pendulum is 25 cm, the mass in one period travels a distance less that 25 cm.
Thus, then the mass in one period travels 'a distance<u> less than 25 cm </u>which will be 0.
Learn more about amplitude here: brainly.com/question/413740
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The basic relationship between frequency, wavelength and speed of a wave is given by
where
v is the wave speed
f is its frequency
is its wavelength
Re-arranging the equation and using the data of the problem, we find the frequency of the wave: