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taurus [48]
3 years ago
6

What is the wavelength of an earthquake wave if it has a speed of 7km/s and a frequency of 8hz

Physics
1 answer:
Leokris [45]3 years ago
4 0

the wavelength formula is the frequency multiplication propagation velocity, do not forget to bring all the units into the international system

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What evidence is there that the Universe began in a big bang?<br><br>​
NeTakaya

Answer: For me personally i have a Biblical faith and first of all there is evidence that looks convincing that the big bang made the universe, but man wants answers and God in the Bible says he created the universe for us it is hard to believe it but i have faith.

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3 years ago
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A plank of length L=2.200 m and mass M=4.00 kg is suspended horizontally by a thin cable at one end and to a pivot on a wall at
baherus [9]

Hello!

Let's begin by doing a summation of torques, placing the pivot point at the attachment point of the rod to the wall.

\Sigma \tau = 0

We have two torques acting on the rod:
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- VERTICAL component of the tension at a distance of 'L' (L = 2.200 m)

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\tau = r \times F

Doing the summation using their respective lever arms:

0 = L Tsin\theta  - dF_g

dF_g = LTsin\theta

Our unknown is 'theta' - the angle the string forms with the rod. Let's use right triangle trig to solve:

tan\theta = \frac{H}{L}\\\\tan^{-1}(\frac{H}{L}) = \theta\\\\tan^{-1}(\frac{1.70}{2.200}) = 37.69^o

Now, let's solve for 'T'.

T = \frac{dMg}{Lsin\theta}

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3 0
1 year ago
A roadway for stunt drivers is designed for racecars moving at a speed of 40 m/s. A curved section of the roadway is a circular
Fynjy0 [20]

Answer:

Bank angle = 35.34o

Explanation:

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Tan (bank angle) = V^2/r*g

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3 years ago
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Here, pressure remains constant.

So, b the gas law

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Explanation:also pls mark brainliest

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Answer:

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Explanation:

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