<span>6.7 x 10-11....Have a good day with a big fat A+
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Answer: A sound wave. There are different types of sound waves like, longitudinal waves and Transverse waves.
Explanation: I learned about it in science.
In the simplest case, a force applied to an object at rest causes it to accelerate in the direction of the force. ... For a massive body moving in an inertial reference frame without any other forces such as friction acting on it, a certain impulse will cause a certain change in its velocity.
The correct answer is 2.2 km/s
Earthquake is a natural disaster when the tectonic plates of the Earth starts vibrating. The speed of earthquake is the velocity by which the waves will vibrate the Earth.
Given,
Wavelength λ= 13 km
Frequency f = 10 times/min
it vibrates 10 times each minute
so the frequency is defined by the number of vibrations per second
f = 10 per minute
f = 10/60
now the speed of wave is defined as
v = λ * f
v = 13 * (1/6)
v = 2.2 km/s
Therefore the speed at which the wave of earthquake having wavelength 13 km causes the ground to vibrate is 2.2 km/s.
To learn more about speed, refer: brainly.com/question/22244502
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The magnitude of static friction is
<em>f</em> = <em>mv</em> ²/<em>r</em>
(i.e. the net force acting on the car parallel to the road points toward the center of the curve)
while the net vertical force must be
∑ <em>F</em> = <em>n</em> - <em>mg</em> = 0
because the car is otherwise in equilibrium. Then
==> <em>n</em> = <em>mg</em>
==> <em>f</em> = <em>µn</em> = <em>µmg</em> = <em>mv</em> ²/<em>r</em>
==> <em>µ</em> = <em>v</em> ²/(<em>rg</em>)
We have
<em>v</em> = 101 km/h ≈ 28.1 m/s
<em>r</em> = 110 m
<em>g</em> = 9.80 m/s²
so that
<em>µ</em> = (28.1 m/s)² / ((110 m) <em>g</em>) ≈ 0.730