Hot water<span> seems to </span>freeze faster<span> than </span>cold water<span>, known as the Mpemba effect. The effect was named after the Tanzanian student who in 1963 noticed that </span>hot<span> ice cream mix </span>freezes faster<span> than a </span>cold<span> one. hope this helped</span>
Red light bends the least when it is refracted by a prism. Red light has the longest wavelength and bends the least when refracted by a prism. Violet light bends the most and has the shortest wavelength.
I hope that helps u out!
:)
Answer:
<em>The rock reaches a maximum height of 442.225 m and was thrown at a speed of 93.1 m/s</em>
Explanation:
<u>Vertical Launch</u>
The rock is launched up with a certain speed vo, it reaches its highest point at a height h when the speed is zero, and then it stars a free-fall motion until it hits the ground at time t.
The maximum height is given by
![\displaystyle h=\frac{g\cdot t^2}{2}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20h%3D%5Cfrac%7Bg%5Ccdot%20t%5E2%7D%7B2%7D)
The rock takes the same time to reach this point as to return to the ground, thus we can calculate the maximum height
![\displaystyle h=\frac{9.8\cdot 9.5^2}{2}=442.225\ m](https://tex.z-dn.net/?f=%5Cdisplaystyle%20h%3D%5Cfrac%7B9.8%5Ccdot%209.5%5E2%7D%7B2%7D%3D442.225%5C%20m)
The rock was thrown up at a speed
![v_o=gt=9.8\cdot 9.5=93.1 \ m/s](https://tex.z-dn.net/?f=v_o%3Dgt%3D9.8%5Ccdot%209.5%3D93.1%20%5C%20m%2Fs)
Answer: The wave is traveling in the - x direction.
Explanation: The parameter in a wave function determines the direction of the wave is "ωt"
Where ω = angular frequency(in hertz ) and t = time taken (in seconds)
The product of ωt = 2π which is angular displacement in radian.
A negative value of the of ωt means the wave is traveling in the negative direction.
Also a positive value of sin ωt means the wave is traveling in the positive direction