Answer:
≈39.2354 [m]
Explanation:
1) coordinates of the rock 1;
2) coordinates of the rock 2; note, ↑ means, the rock moves up, ↓ means the rock moves down;
3) the required distance.
For more info see the attachment.
Answer:
4.11 s.
Explanation:
The period T of oscillation of the pendulum is given by the formula:
![T = 2 \pi * \sqrt{\frac{L}{g} }](https://tex.z-dn.net/?f=T%20%3D%202%20%5Cpi%20%2A%20%5Csqrt%7B%5Cfrac%7BL%7D%7Bg%7D%20%7D)
The maximum oscillation point it can reach is 45 °,
This point is the equivalent of T / 4, which is the moment when it reaches equilibrium.
So for T / 4,
![T = 2\pi * \sqrt{l / g} = 2 \pi \sqrt{(67 / 9.81)} = 16.42](https://tex.z-dn.net/?f=T%20%3D%202%5Cpi%20%2A%20%5Csqrt%7Bl%20%2F%20g%7D%20%3D%202%20%5Cpi%20%5Csqrt%7B%2867%20%2F%209.81%29%7D%20%3D%2016.42)
![t = T / 4 = 16.42 / 4 = 4.11 s](https://tex.z-dn.net/?f=t%20%3D%20T%20%2F%204%20%3D%2016.42%20%2F%204%20%3D%204.11%20s)
The period of the transverse wave from what we have here is 0.5
<h3>How to find the period of the transverse wave</h3>
The period of a wave can be defined as the time that it would take for the wave to complete one complete vibrational cycle.
The formula with which to get the period is
w = 4π
where w = 4 x 22/7
2π/T = 4π
6.2857/T = 12.57
From here we would have to cross multiply
6.2857 = 12.57T
divide through by 12.57
6.2857/12.57 = T
0.500 = T
Hence we can conclude that the value of T that can determine the period based on the question is 0.500.
Read more on transverse wave here
brainly.com/question/2516098
#SPJ4
A "variable" is a person, object, or some other well-defined item upon which a treatment is applied.
A variable is basically what you do your tests on whenever you need to test something
Answer:
50N
Explanation:
the net force is the addition of all forces in an object.
The frictional force is the opposite of the applied force, so:
Nf(net force)= 250(applied force)-200(frictional force)
so Nf=50N