Answer: Sound has vibrations of molecules and it spread through the air
Explanation: Pretty much what this means you need molecules to produce sounds and in space there isn't any. On the other hand light is a electromagnetic waves and those waves do not need a medium to travel through
Unusual precipitation patterns
Explanation:
It is given that,
Initial velocity of frog, u = 100 m/s
It jumps at an angle of 60 degrees.
(a) Let
are the x and y components of velocity. It can be calculated as :
![u_x=u\ cos\theta](https://tex.z-dn.net/?f=u_x%3Du%5C%20cos%5Ctheta)
![u_x=100\times \ cos(60)](https://tex.z-dn.net/?f=u_x%3D100%5Ctimes%20%5C%20cos%2860%29)
![u_x=50\ m/s](https://tex.z-dn.net/?f=u_x%3D50%5C%20m%2Fs)
![u_y=u\ sin\theta](https://tex.z-dn.net/?f=u_y%3Du%5C%20sin%5Ctheta)
![u_y=100\times \ sin(60)](https://tex.z-dn.net/?f=u_y%3D100%5Ctimes%20%5C%20sin%2860%29)
![u_y=86.6\ m/s](https://tex.z-dn.net/?f=u_y%3D86.6%5C%20m%2Fs)
(b) Let y is the maximum height reached by the frog. It can be calculated using the third equation of motion as :
At maximum height, ![v_y=0](https://tex.z-dn.net/?f=v_y%3D0)
and a = -g
![y=\dfrac{u_y^2}{2g}](https://tex.z-dn.net/?f=y%3D%5Cdfrac%7Bu_y%5E2%7D%7B2g%7D)
![y=\dfrac{86.6^2}{2\times 9.8}](https://tex.z-dn.net/?f=y%3D%5Cdfrac%7B86.6%5E2%7D%7B2%5Ctimes%209.8%7D)
y = 382.63 meters
(c) Let t is the time taken by the frog to reach its maximum height. It can be calculated as :
![v_y=u_y-gt](https://tex.z-dn.net/?f=v_y%3Du_y-gt)
![0=u_y-gt](https://tex.z-dn.net/?f=0%3Du_y-gt)
![t=\dfrac{u_y}{g}](https://tex.z-dn.net/?f=t%3D%5Cdfrac%7Bu_y%7D%7Bg%7D)
t = 8.83 seconds
Hence, this is the required solution.
The answer would be A) True.
Answer:
Fission, in biology, is the division of a single entity into two or more parts and the regeneration of those parts to separate entities resembling the original. The object experiencing fission is usually a cell, but the term may also refer to how organisms, bodies, populations, or species split into discrete parts.
Metabolism is the set of life-sustaining chemical reactions in organisms. The three main purposes of metabolism are: the conversion of food to energy to run cellular processes; the conversion of food/fuel ...
Explanation: