First we know that Earth moves around the sun once per year.
If Radius = 150,000,000Km, then the circumference of Earth's
orbit must be:
C = 2 x R x Pi
C = 2 x 150,000,000 x 3.141529
C = 942,458,700Km per year
Divide that by 365.25 days, and we get:
C = 2,580,311Km per day
Further divide that by 24 hours and we get:
C = 107,512Km / hour
There are 3600 seconds in an hour so:
C = 29.86 km / second
Answer:
2684 m
Explanation:
First of all, we should find the time that the survival kit takes to reach the ground. For this purpose, we can only consider the vertical motion of the kit, which is an accelerated motion with constant acceleration g=9.8 m/s^2 (toward the ground) and initial vertical velocity of zero. The vertical distance travelled is S=1800.0 m, so we can find the time by using:
![S=\frac{1}{2}at^2\\t=\sqrt{\frac{2S}{a}}=\sqrt{\frac{2\cdot 1800 m}{9.8 m/s^2}}=19.17 s](https://tex.z-dn.net/?f=S%3D%5Cfrac%7B1%7D%7B2%7Dat%5E2%5C%5Ct%3D%5Csqrt%7B%5Cfrac%7B2S%7D%7Ba%7D%7D%3D%5Csqrt%7B%5Cfrac%7B2%5Ccdot%201800%20m%7D%7B9.8%20m%2Fs%5E2%7D%7D%3D19.17%20s)
And now we can find the horizontal distance travelled by the kit during this time interval, which corresponds to the distance at which Alex should drop the supplies. The horizontal motion is a uniform motion with constant speed v = 140.0 m/s, so the horizontal distance is
![d=vt=(140.0 m/s)(19.17 s)=2684 m](https://tex.z-dn.net/?f=d%3Dvt%3D%28140.0%20m%2Fs%29%2819.17%20s%29%3D2684%20m)
The answer to this is At least 16.6 meters in front of the reflecting surface.
The speed of sound without any interference is only about 340 m/s through the vibration of the media in which it passes through.
Hope this helped :)
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Answer:
The correct option is;
2. Some of the laws that govern nature cannot be detected by scientists
Explanation:
The statement "some of the laws that govern nature cannot be detected by scientists" is a scientific claim because of the concept of the laws or the theories truth or realism
The art word 'scientific realism' refers to the world that cannot be observed with our natural given senses without an aid.
Ontic realism refers to the statement that the world that cannot be observed are independent from the entities that are in possession of minds, ideas, language conception
Therefore, according to the ontic realist consider the world to be made of unobservable structures and units that exist independent of the man.
Answer:
changes electrical energy into mechanical energy