Answer:
Young's modulus for this alloy of nickel is 1.997×10^11 N/m^2
Explanation:
Young's modulus = stress/strain
Stress = Force (F)/Area (A)
F = mg = 59 kg × 9.8 m/s^2 = 578.2 N
A = πd^2/4 = 3.142 × (0.19/100)^2/4 = 2.836×10^-6 m^2
Stress = 578.2/2.836×10^-6 = 2.039×10^8 N/m^2
Strain = extension/length = 2.86×10^-3 m/2.8 m = 1.021×10^-3
Young's modulus = 2.039×10^8/1.021×10^-3 = 1.997×10^11 N/m^2
Answer:
Explanation:
The Brinell Hardness is obtained from the following formula:
Where 
is the load measured in kilograms-force, 
is the diameter of indenter measured in millimeters and 
is the diameter of indentation measured in millimeters.
![HB=\frac{2\cdot (1000\,kgf)}{\pi\cdot (10\,mm)^{2}}\cdot \left[ \frac{1}{1-\sqrt{1-\frac{(2.50\,mm)^{2}}{(10\,mm)^{2}} } } \right ]](https://tex.z-dn.net/?f=HB%3D%5Cfrac%7B2%5Ccdot%20%281000%5C%2Ckgf%29%7D%7B%5Cpi%5Ccdot%20%2810%5C%2Cmm%29%5E%7B2%7D%7D%5Ccdot%20%5Cleft%5B%20%5Cfrac%7B1%7D%7B1-%5Csqrt%7B1-%5Cfrac%7B%282.50%5C%2Cmm%29%5E%7B2%7D%7D%7B%2810%5C%2Cmm%29%5E%7B2%7D%7D%20%7D%20%7D%20%20%5Cright%20%5D)
Answer:
Basics. CNG is a readily available alternative to gasoline that's made by compressing natural gas to less than 1% of its volume at standard atmospheric pressure. ... Expanding the numbers of CNG fueling stations would allow for the increase of CNG vehicles on U.S. roads.
Answer:
D the closest
Explanation:
i looked it up and 8t says 200
Answer:
Explanation:
From the information given;
The velocity of the wind blow V = 7 m/s
The diameter of the blades (d) = 80 m
Percentage of the overall efficiency 
The density of air 
Then, we can use the concept of the kinetic energy of the wind blowing to estimate the mechanic energy of air per unit mass by using the formula:
here;
m = 
= 
= 43982.29 kg/s
∴
The actual electric power is:
