What are the 3 mechanisms of heat transfer? The Three Mechanisms of Heat Transfer: Conduction, Convection, and Radiation. Which mechanism of heat transfer is dramatically increased when the surface area of an object increases? Because the number of collisions increases with increasing area, heat conduction is proportional to the cross-sectional area—a second factor in the […]
Why has innovation slowed?
Why has innovation slowed? The data suggests so: Productivity growth in the United States, which is powered by innovation, has been decelerating. This slow growth continues today, with productivity lower than it was more than 100 years ago. This slowdown has occurred despite increased investment in scientific research. Is technology growth slowing down? The seemingly […]
What is event driven programming model?
What is event driven programming model? Simply put, event-driven programming is when a program is designed to respond to user engagement in various forms. It is known as a programming paradigm in which the flow of program execution is determined by “events.” Events are any user interaction, such as a click or key press, in […]
What is pump and its types?
What is pump and its types? A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action, typically converted from electrical energy into hydraulic energy. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps. […]
What are the two ways a sinking fund can be handled?
What are the two ways a sinking fund can be handled? The corporation makes annual payments to the trustee, who invests the proceeds in securities (frequently government bonds) and uses the accumulated total to retire the bond issue at maturity. What is annual sinking fund? A sinking fund is a fund containing money set aside […]
How many solar panels can I fit on my roof?
What is undamped simple harmonic motion?
What is undamped simple harmonic motion? A body is defined as executing Simple Harmonic Motion (SHM) when the acceleration a(t) of the body towards a fixed point is proportional to it’s displacement (x(t)) from that point i.e. Expressions for velocity and acceleration can be obtained by differentiation of x(t). … What are the parameters of […]
Under what conditions can soils be chemically stabilized?
Under what conditions can soils be chemically stabilized? Chemical stabilization should not be performed when the temperature is below 40 ºF (5 ºC) or the ground is frozen. In order to stabilize the soil, the lime or cement needs to react with the water in the soil. It cannot do that if the water is […]
Why are fins attached to the pipes inside the heater?
Why are fins attached to the pipes inside the heater? Fins attached to the core tubes serve to increase surface area for heat transfer to air that is forced past them by a fan, thereby heating the passenger compartment. What is the purpose of using fins in heat transfer? In the study of heat transfer, […]