Desert pavement or commonly called stone or stony pavement is a type of desert surface that is covered with pebbles and stone tight and intertwined. Many of these layers form a type of pavement known as mosaic. When the particles begin to be stacked between different natural agents such as rain, gravity and animals compact the layers and generates a layer that allows the pavement not to erode. Basically runoff and deflation eliminate silt and clay, leaving thicker particles behind.
The correct answer is A.
Answer: 1.33 metres
Explanation:
Given that:
Wavelength (λ)= ?
Frequency F = 256Hz
Speed of sound wave = 340 m/s
So, apply the formula:
Wavespeed = frequency x wavelength
i.e V = F λ
340m/s = 256Hz x λ
λ = (340m/s ➗ 256Hz)
λ = 1.328 m (Round to the nearest hundredth which is 1.33 m)
Thus, the wavelength of a sound wave is
1.33 metres
ΔK = -2334.66J. The kinetic energy loss is -2334.66J.
This is an example of elastic collision which means that the two bodies remain united after the collision, as we know the amount of movement is preserved that is called conservation of momentum. So, we can write the equation as follow:
Where 
is the initial momentum and 
is the final momentum.
Substituting the values:
After the collision the bodies are united and move at the speed of 33.33 m/s.
To calculate the kinetic energy lost in the impact we only have to calculate the energy of each body before the impact and compare it with the energy of the whole after the impact.
ΔK = 
ΔK = ![\frac{1}{2}(m_{1}+m_{1})(v_{f})^{2}-[\frac{1}{2}m_{1}(v_{1})^{2}+\frac{1}{2}m_{2}(v_{2})^{2}]](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%28m_%7B1%7D%2Bm_%7B1%7D%29%28v_%7Bf%7D%29%5E%7B2%7D-%5B%5Cfrac%7B1%7D%7B2%7Dm_%7B1%7D%28v_%7B1%7D%29%5E%7B2%7D%2B%5Cfrac%7B1%7D%7B2%7Dm_%7B2%7D%28v_%7B2%7D%29%5E%7B2%7D%5D)
Substituting the values:
ΔK = ![\frac{1}{2}(7kg+5kg)(33.33\frac{m}{s} )^{2}-[\frac{1}{2}(7kg)(50\frac{m}{s} )^{2}+\frac{1}{2}(5kg)(10\frac{m}{s} )^{2}]](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%287kg%2B5kg%29%2833.33%5Cfrac%7Bm%7D%7Bs%7D%20%29%5E%7B2%7D-%5B%5Cfrac%7B1%7D%7B2%7D%287kg%29%2850%5Cfrac%7Bm%7D%7Bs%7D%20%29%5E%7B2%7D%2B%5Cfrac%7B1%7D%7B2%7D%285kg%29%2810%5Cfrac%7Bm%7D%7Bs%7D%20%29%5E%7B2%7D%5D)
ΔK = ![\frac{1}{2}(12kg)(1110.89\frac{m^{2}}{s^{2}})-[\frac{1}{2}(7kg)(2500\frac{m^{2}}{s^{2}} )+\frac{1}{2}(5kg)(100\frac{m^{2}}{s^{2}})]](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%2812kg%29%281110.89%5Cfrac%7Bm%5E%7B2%7D%7D%7Bs%5E%7B2%7D%7D%29-%5B%5Cfrac%7B1%7D%7B2%7D%287kg%29%282500%5Cfrac%7Bm%5E%7B2%7D%7D%7Bs%5E%7B2%7D%7D%20%29%2B%5Cfrac%7B1%7D%7B2%7D%285kg%29%28100%5Cfrac%7Bm%5E%7B2%7D%7D%7Bs%5E%7B2%7D%7D%29%5D)
ΔK = ![\frac{1}{2}(13330.68kg\frac{m^{2}}{s^{2}})-[\frac{1}{2}(17500kg\frac{m^{2}}{s^{2}} )+\frac{1}{2}(500kg\frac{m^{2}}{s^{2}})]](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%2813330.68kg%5Cfrac%7Bm%5E%7B2%7D%7D%7Bs%5E%7B2%7D%7D%29-%5B%5Cfrac%7B1%7D%7B2%7D%2817500kg%5Cfrac%7Bm%5E%7B2%7D%7D%7Bs%5E%7B2%7D%7D%20%29%2B%5Cfrac%7B1%7D%7B2%7D%28500kg%5Cfrac%7Bm%5E%7B2%7D%7D%7Bs%5E%7B2%7D%7D%29%5D)
ΔK = 
ΔK = 
ΔK = 
Answer:
All of the above
Explanation:
The steps that should be taken for rating the results is as follows
1. Pin location checking
2. Offical website checking for the address purpose
3. The checking should be done for the closer results in the case of non-returning
Therefore all of the above steps are required and taken for rating the results
Hence, the same is to be considered
