What is secondary treatment of wastewater in a treatment plant? Secondary treatment is a treatment process for wastewater (or sewage) to achieve a certain degree of effluent quality by using a sewage treatment plant with physical phase separation to remove settleable solids and a biological process to remove dissolved and suspended organic compounds. What are […]
What is the difference between elastic and plastic deformation?
What is the difference between elastic and plastic deformation? When energy goes into changing the shape of some material and it stays changed, that is said to be plastic deformation. When the material goes back to its original form, that’s elastic deformation. Mechanical energy is lost whenever an object undergoes plastic deformation. What is the […]
What is sampling in analog-to-digital conversion?
What is sampling in analog-to-digital conversion? An input signal is converted from some continuosly varying physical value (e.g. pressure in air, or frequency or wavelength of light), by some electro-mechanical device into a continuously varying electrical signal. How is sampling done from analog signals? In signal processing, sampling is the reduction of a continuous-time signal […]
How do you find the period and frequency of a pendulum?
How much does an acre of land cost in America?
How much does an acre of land cost in America? The United States farm real estate value, a measurement of the value of all land and buildings on farms, averaged $3,160 per acre for 2019, up $60 per acre (1.9 percent) from 2018. The United States cropland value averaged $4,100 per acre, an increase of […]
When would you use a quasi-experimental design?
When would you use a quasi-experimental design? However, unlike a true experiment, a quasi-experiment does not rely on random assignment. Instead, subjects are assigned to groups based on non-random criteria. Quasi-experimental design is a useful tool in situations where true experiments cannot be used for ethical or practical reasons. Why do researchers choose to use […]
Do stars emit UV light?
Do stars emit UV light? Low-mass stars are currently the most promising targets when searching for potentially habitable planets, but new research has revealed that some of these stars produce significant amounts of ultraviolet (UV) radiation throughout their lifetimes. Is UVC light visible? By definition, ultraviolet light is ‘beyond violet light’ and the visible spectrum […]
How can I get free money from the government without paying it back?
How can I get free money from the government without paying it back? 18 Ways to Get Free Money From the Government Find Unclaimed Money. Find Unclaimed Pension Funds. Get Help With a Down Payment. Apply for Educational Grants. Get Assistance with Childcare Expenses. Accept Healthcare Credits. Get Free or Reduced Healthcare for Your Kids. […]
What is a silicon pn junction?
What is a silicon pn junction? A p–n junction is a boundary or interface between two types of semiconductor materials, p-type and n-type, inside a single crystal of semiconductor. What do you mean by PN junction? Definition: A p-n junction is an interface or a boundary between two semiconductor material types, namely the p-type and […]