Cross-sectional area is determinedby squaring the radius and then multiplying by 3.14. For example, if a tree is measured as 10” DBH, the radius is 5”. Multiplying 5 by 5 equals 25, which when multiplied by 3.14 equals 78.5. Thus, the cross-sectional area of a 10” DBH tree is 78...
where l = length (units: m) where A = cross sectional area (units: m2) 物理公式英文:电阻器Resistors 串联电阻器 并联电阻器 where R = 等效电阻 (单位: Ω) where R = equivalent resistance (units: Ω) 物理公式英文:电路Electric Circuits 电路中的功率 where P = 功率 (单位: W) where I =...
It is often expressed as a force per unit of cross-sectional area. The amount of load or stress that a material can withstand before stretching and breaking is known as its tensile strength. Tensile strength, as its name suggests, refers to a material’s resistance to tension brought on by...
The shear formula is to be used on strainght prismatic members made of ( ) material that has ( ) behavior. Also, the internal resultant shear force must be directed along an axis of ( ) of the cross-sectional area.? homogeneous, linear-inelastic, symmetryhomogeneous, elastic,;asymmetryunhom...
A = cross sectional area of flow (ft2, m) Pw= wetted perimeter (ft, m) Flow Section Channels - Geometric Relationships Download and print Gravity Flow - Mannings Equation Chart The volume flow in the channel can be calculated as q = A v ...
stress =force/ Cross-sectional area σ= F/A Where, σ= stress F= Force in Newton (N) A= cross-sectional area in m² Units of stress= N/m² or Pascals (Pa) Types of Stress There is various type of stress in physics but mainly it is categorized into three forms: Normal stre...
Darcy-WeisbachFormula达西-魏斯巴赫公式 Darcy-Weisbach Formula Flow of fluid through a pipe The flow of liquid through a pipe is resisted by viscous shear stresses within the liquid and the turbulence that occurs along the internal walls of the pipe, created by the roughness of the pipe material...
R= lates resistance R of a conducto, resistv- ity p. conductor length /. and conductor cross-sectional area A (a) Rearranging gives (ρL)/A=R Multiplying both sides by A grves A((pL)/A)=A(R) ) Cancelling gives ρL=AR Rearranging gives AR =pl Dividing both sides by R gives...
Directly proportional to the cross-sectional area of the conductor. Inversely proportional to the length of the conductor. Dependent upon the nature of the material (σ). Varied with the temperature.What is Conductivity?The ability of a substance to provide ease in the flow of electric current ...
S0 in sectional area H - high V = H (S1+S2+4S0) /6 R bottom radius of a cylinder H - high C - bottom perimeter S bottom area S side to side area S table - surface area = C = 2 pi R S = Pi R2 S side = Ch S = Ch+2S base V = S, bottom H PI...