Answer:
1) 945000 m
2) 6.11 miles/hour
3) 3.52 seconds
Explanation:
1. Speed is the time rate of change of distance, it is the ratio of distance to time. Speed is given by the equation:
![speed(S)=\frac{distance(d)}{time(t)}](https://tex.z-dn.net/?f=speed%28S%29%3D%5Cfrac%7Bdistance%28d%29%7D%7Btime%28t%29%7D)
Given that:
Time (t) = 9 hours and Speed (S) = 105 km/h
![S=\frac{d}{t}\\ d=S*t=105*9=945km=945000m](https://tex.z-dn.net/?f=S%3D%5Cfrac%7Bd%7D%7Bt%7D%5C%5C%20d%3DS%2At%3D105%2A9%3D945km%3D945000m)
2) Time (t) = 0.9 hours and distance (d) = 5.5 miles
![S=\frac{d}{t}\\ S=\frac{5.5}{0.9} =6.11miles/hour](https://tex.z-dn.net/?f=S%3D%5Cfrac%7Bd%7D%7Bt%7D%5C%5C%20S%3D%5Cfrac%7B5.5%7D%7B0.9%7D%20%3D6.11miles%2Fhour)
3) Acceleration it is the ratio of velocity to time. Acceleration is given by the equation:
![Accceleration(a)=\frac{Final,velocity(u)-initial, velocity(v)}{time(t)}](https://tex.z-dn.net/?f=Accceleration%28a%29%3D%5Cfrac%7BFinal%2Cvelocity%28u%29-initial%2C%20velocity%28v%29%7D%7Btime%28t%29%7D)
Given that :
a = 4.2 m/s² , u = 18.9 m/s and v = 33.7 m/s
![a=\frac{v-u}{t}\\ t=\frac{v-u}{a}\\ t=\frac{33.7-18.9}{4.2}=3.52s](https://tex.z-dn.net/?f=a%3D%5Cfrac%7Bv-u%7D%7Bt%7D%5C%5C%20t%3D%5Cfrac%7Bv-u%7D%7Ba%7D%5C%5C%20t%3D%5Cfrac%7B33.7-18.9%7D%7B4.2%7D%3D3.52s)
Kroto, Smalley and Curl are scientists who were able to deduced the shape of carbon -60 with molecular models. During the experimentation, they used HIGH POWER LASER ENERGY to heat carbon to star-hot temperature.
Answer:
c. Adaptive radiation occurs in the presence of competitors.
Explanation:
Adaptive radiation is a process of diversification in which new species are originated from an ancestral species due to changes in the enviroment or deu to pressures such as competition for resources that lead organisms to find new niches. For example, if there are many competitors for the same food source, that pressure could lead some organisms to look for a new food source, that, in turn, can lead to the adaptation of their body to the new food source. For example, bird beaks that were specialized for seeds can be adapted for insects.
Just ask whatever college your wanting to go to!