How transportation will change in the future? The future of transportation involves moving into new, smarter sources of energy, modes of transport and physical and technological infrastructure to support these transportation innovations. Three common themes in transportation innovation are: smart technology. electrification. How did trains and railroads change life in America? It made commerce possible […]
Why is the Buckingham π theorem used?
Why is the Buckingham π theorem used? Significance. The Buckingham π theorem provides a method for computing sets of dimensionless parameters from given variables, even if the form of the equation remains unknown. Most importantly, Buckingham’s theorem describes the relation between the number of variables and fundamental dimensions. What are repeating variables in Buckingham Pi […]
What are the advantages of method of section?
What are the advantages of method of section? The primary benefit of the method of sections is that, for a determinate truss, you can find the force in any individual member quickly without having to solve through the entire truss one joint at a time (which you must do when using the method of joints). […]
What are the 3 types of relationships in a database?
What are the 3 types of relationships in a database? There are three types of relationships between the data you are likely to encounter at this stage in the design: one-to-one, one-to-many, and many-to-many. To be able to identify these relationships, you need to examine the data and have an understanding of what business rules […]
What can cells be used for?
What can cells be used for? They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body’s hereditary material and can make copies of themselves. Cells have many parts, each with a different function. How do you draw a human […]
How do you use mesh current method?
How do you use mesh current method? Mesh current method Identify the meshes, (the open windows of the circuit). Assign a current variable to each mesh, using a consistent direction (clockwise or counterclockwise). Write Kirchhoff’s Voltage Law equations around each mesh. Solve the resulting system of equations for all mesh currents. How do you find […]
How do you calculate bulk wind shear?
How do you calculate bulk wind shear? Bulk wind shear is calculated by finding the vector difference between the winds at two different heights. Using the supercell wind profile you identified, calculate the 0-1 km and 0-6 km bulk wind shear values. How do you calculate wind shear? Wind shear is quantified as the exponent […]
Why butane has a higher boiling point than 2 Methylpropane?
Why butane has a higher boiling point than 2 Methylpropane? Butane has a higher boiling point because the dispersion forces are greater. The molecules are longer (and so set up bigger temporary dipoles) and can lie closer together than the shorter, fatter 2-methylpropane molecules. Why do intermolecular forces increase with size? The strength of London […]
What happens if the spring constant increases?
What happens if the spring constant increases? A stronger spring-with a larger value of k-will move the same mass more quickly for a smaller period. As the spring constant k increases, the period decreases. For a given mass, that means a greater acceleration so the mass will move faster and, therefore, complete its motion quicker […]
What is RMS value of AC voltage?
What is RMS value of AC voltage? RMS. One of the principal applications of RMS values is with alternating currents and voltages. ROOT MEAN SQUARE (RMS) VALUE. The value of an AC voltage is continually changing from zero up to the positive peak, through zero to the negative peak and back to zero again. How […]