The value obtained by dividing this repelling force by the cross-sectional area (the value converted to per unit area) is called “stress” (σ). With the external pulling force as P (N) and the cross-sectional area as a (m2), the stress is obtained as follows. ...
How does the cross sectional area of a resistor affect resistance? A steady current of 2.5 A exists in a wire for 4.0 mins. a) How much total charge is passed by a given point in the circuit during those 4.0 mins? b) How many electrons would this be?
Use a micrometer to measure the original length (L0) of the material you’re working with, but do this before any force is applied or stretching occurs so that you can get the most accurate answer. 2. Use the Micrometer to Measure the Cross-Sectional Area and Other Diameters Measure the...
To test the strength of materials, an instrument pulls on the ends of a sample with greater and greater force and measures the resulting change in length, sometimes until the sample breaks. The sample's cross-sectional area must be defined and known, allowing the calculation of stress from th...
Suppose that the slide wire on the bridge did not have a uniform cross section. How would this affect the measurements? What do you mean by a micrometer? Explain why the cross sectional area is important when determining the materials resistivity. ...
Figure 1: The light guide in this example is a mixing rod that you might find in a projector. The light guide is used to homogenize the light coming from a traditional light source and reflector. At the input side, light peaks sharply in the center; at the output side, light is spatia...
Strength is directly related to the size (that is, the cross-sectional area) of the muscle. Muscle fibers are capable of developing a maximal force of 3 to 4 kg/cm2 (average = 3.5 kg/cm2) of muscle area. So, let's say that you have increased your muscle size from 100 to 150 ...
COVID-19 research has relied heavily on convenience-based samples, which—though often necessary—are susceptible to important sampling biases. W
Find the mass and center of mass of the lamina that occupies the region D and has the given density function (rho). D = {(x, y) | 0(less than or equal to) x (less than or equal to) 1, -1(less than or Locate the center of gravity y of the homog...
A stress-strain diagram is plotted during the tensile testing of a material to determine the relationship between the stress and the strain at different loads. Various properties of the material are calculated by using stress-strain diagrams such as modulus of elasticity, modulus of resilience, fr...