B sunlight, because the sun has energy and that gives the soil energy and the plant take that energy and is able to grow.
<span>Youll need to use Wiens Displacement Law:\[T=\frac{ 2.8978*10^{-3}m∙K }{ \lambda _{\max} }\]Note that the units of the constant are meter∙Kelvin, so youll need to convert 350nm to meters.</span>
Answer:
![38330mm^{4}](https://tex.z-dn.net/?f=38330mm%5E%7B4%7D)
Explanation:
As we know that the moment of area of polar is also known as the second moment of area. It is used to describe resistance to torsional deformation, on cylindrical objects with an invariant cross section area.
Therefore, mathematically second moment of area can be written as,
![A= \frac{\pi R^{4} }{2}](https://tex.z-dn.net/?f=A%3D%20%5Cfrac%7B%5Cpi%20R%5E%7B4%7D%20%7D%7B2%7D)
Here, R is the radius of circular cross section.
Given that a circular section is welded to a wall has a diameter,
![D=25mm](https://tex.z-dn.net/?f=D%3D25mm)
Therefore,
![R=\frac{D}{2} \\R=\frac{25}{2} mm](https://tex.z-dn.net/?f=R%3D%5Cfrac%7BD%7D%7B2%7D%20%5C%5CR%3D%5Cfrac%7B25%7D%7B2%7D%20mm)
Therefore, second moment of area for the circular weld pattern is,
![A= \frac{\pi (\frac{25}{2}) ^{4} }{2}\\A=38330mm^{4}](https://tex.z-dn.net/?f=A%3D%20%5Cfrac%7B%5Cpi%20%28%5Cfrac%7B25%7D%7B2%7D%29%20%5E%7B4%7D%20%7D%7B2%7D%5C%5CA%3D38330mm%5E%7B4%7D)
<span>Temperature causes water molecules to move more quickly, because each individual molecule has more energy as it gets hotter (according to Kinetic molecular theory). If you get water hot enough, the molecules move so much that the hydrogen bonds that hold them together start to break and the water becomes a gas ... water vapor. This your answer unless there are choices.</span>
Answer:
0.026 meter
Explanation:
using distance time equation to determine the time for the puck to move 16.5 meters.
distance 'd' = velocity'v' x time't'
16.5 = 44 x t
t =0.375 second
Here momentum is conserved. Since both objects are initially at rest, the initial momentum is 0.
Next is to determine the puck’s momentum.
Momemtum 'p' = m x v => 0.15 x 44 = 6.6kg⋅m/s
The player momentum is -6.6kg⋅m/s .
In order to determine the player’s velocity, we'll use p=mv
-6.6 = 94v
v= -0.0702 m/s
The above negative sign represents that the player is moving in the opposite direction of the puck.
Lastly, how far does the player recoil in the time it takes the puck to reach the goal 16.5 m away?
d = v x t = 0.0702 x 0.375= 0.026 meter