What is the scalar product of 2 vectors? The scalar product of two vectors is obtained by multiplying their magnitudes with the cosine of the angle between them. The scalar product of orthogonal vectors vanishes; the scalar product of antiparallel vectors is negative. The vector product of two vectors is a vector perpendicular to both […]
Why are universal joints used?
Why are universal joints used? A universal joint is a positive, mechanical connection between rotating shafts, which are usually not parallel, but intersecting. They are used to transmIt motion, power, or both. The simplest and most common type is called the Cardan joint or Hooke joint. It is shown in Figure 1. What is a […]
What is included in contract documents?
What is included in contract documents? Construction contract documents include the Agreement, the Conditions of Contract, the Drawings, and the Specifications. Because of the legal implications, owners produce the Agreement and the Conditions. What is meant by contract documentation? Related Definitions Contract Documentation means all documents which form part of, constitute or evidence the Contract, […]
How is energy converted in a windmill?
How is energy converted in a windmill? A wind turbine transforms the mechanical energy of wind into electrical energy. A turbine takes the kinetic energy of a moving fluid, air in this case, and converts it to a rotary motion. As wind moves past the blades of a wind turbine, it moves or rotates the […]
What is the best defense against social engineering attacks?
What is the best defense against social engineering attacks? Five Ways to Protect Yourself: Delete any request for personal information or passwords. Nobody should be contacting you for your personal information via email unsolicitedly. Reject requests for help or offers of help. Set your spam filters to high. Secure your devices. Always be mindful of […]
How many elastic constants does an isotropic homogeneous and linearly elastic material have?
How many elastic constants does an isotropic homogeneous and linearly elastic material have? two constants What is isotropic elasticity? A material is said to be isotropic if its properties do not vary with direction. Isotropic materials therefore have identical elastic modulus, Poisson’s ratio, coefficient of thermal expansion, thermal conductivity, etc. In order to define the […]
How will you create a database design for library management system?
How will you create a database design for library management system? Database Design For Library Management System Introduction. Tables. Book_Details. Binding_Details. Category_Details. Borrower_Details. Normalization. ER-Diagram. SQL Command (select, update, insert, delete) Creating table “Book_Details”: Inserting Some Data in “Book_Details” Creating table “Binding_Details”: Creating Relationship Between Book and Binding Table: How do you create a database […]
What is a steady flow process?
What is a steady flow process? Steady flow process is a process where: the fluid properties can change from point to point in the control volume but remains the same at any fixed point during the whole process. A steady-flow process is characterized by the following: No properties within the control volume change with time. […]
What is cutoff frequency of a filter?
What is cutoff frequency of a filter? Electronics. In electronics, cutoff frequency or corner frequency is the frequency either above or below which the power output of a circuit, such as a line, amplifier, or electronic filter has fallen to a given proportion of the power in the passband. What is the bandwidth of a […]