Answer:
When the denominator of both ratios is the same, adding the ratio is simple. You just add the numbers to the left of the colon (this number is called the Ratio Numerator)xplanation:
-- loud sounds
-- bright lights
-- strong radio signals
-- Slinkies that can pinch you painfully
-- a tsunami in the ocean
-- earthquakes above Richter 5 or 6
Answer: 1) a = 9.61m/s² pointing to west.
2) (a) Δv = - 37.9km/s
(b) a = - 6.10⁷km/years
Explanation: Aceleration is the change in velocity over change in time.
1) For the plane:
![a=\frac{\Delta v}{\Delta t}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7B%5CDelta%20v%7D%7B%5CDelta%20t%7D)
![a=\frac{125}{13}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7B125%7D%7B13%7D)
a = 9.61m/s²
The plane is moving east, so velocity points in that direction. However, it is stopping at the time of 13s, so acceleration's direction is in the opposite direction. Therefore, acceleration points towards west.
2) Total change of velocity:
![\Delta v = v_{f}-v_{i}](https://tex.z-dn.net/?f=%5CDelta%20v%20%3D%20v_%7Bf%7D-v_%7Bi%7D)
![\Delta v = -17.1-(+20.8)](https://tex.z-dn.net/?f=%5CDelta%20v%20%3D%20-17.1-%28%2B20.8%29)
km/s
The interval is in years, so transforming seconds in years:
v = ![\frac{-37.9}{3.15.10^{-7}}](https://tex.z-dn.net/?f=%5Cfrac%7B-37.9%7D%7B3.15.10%5E%7B-7%7D%7D)
km/years
Calculating acceleration:
![a=\frac{-12.03.10^{-7}}{2.01}](https://tex.z-dn.net/?f=a%3D%5Cfrac%7B-12.03.10%5E%7B-7%7D%7D%7B2.01%7D)
![a=-6.10^{7}](https://tex.z-dn.net/?f=a%3D-6.10%5E%7B7%7D)
Acceleration of an asteroid is a = -6.10⁷km/years .
Answer:
5 meters, 6miles, 30 kilometers/hour
Explanation:
just did the test on a.p.e.x
<span>C) Most earthquakes and volcanoes occur along distinct lines around the world.
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