What are types of sound? There are two types of sound, Audible and Inaudible. Inaudible sounds are sounds that the human ear cannot detect. The human ear hears frequencies between 20 Hz and 20 KHz. Sounds that are below 20 Hz frequency are called Infrasonic Sounds. Sounds that are above 20 KHz frequency are called […]
Where can I find free scholarly articles?
Where can I find free scholarly articles? The Top 21 Free Online Journal and Research Databases CORE. CORE is a multidisciplinary aggregator of open access research. ScienceOpen. Directory of Open Access Journals. Education Resources Information Center. arXiv e-Print Archive. Social Science Research Network. Public Library of Science. OpenDOAR. What are the secondary research databases? Secondary […]
Why are there 108 sun salutations?
Why are there 108 sun salutations? The number 108 is auspicious The number 108 is considered highly auspicious in many traditions. We yogis practice 108 sun salutations on special occasions like the birthday of our teachers or New Year’s Day, or to raise money for a special cause. It’s such a powerful practice. Can I […]
How far apart are the slits in a double slit experiment?
How far apart are the slits in a double slit experiment? 0.15mm What does the double-slit experiment prove? In quantum mechanics the double-slit experiment demonstrated the inseparability of the wave and particle natures of light and other quantum particles. If classical particles are fired in a straight line through a slit they will all strike […]
Where an object should be placed before a concave mirror of focal length 20 cm so that a real image is formed at a distance of 60 cm from it?
Which of the following is primary pollutant?
Which of the following is primary pollutant? A primary pollutant is an air pollutant emitted directly from a source e.g., carbon monoxide (CO), oxides of nitrogen (NOx, NO), sulfur oxides (SOx), SO2, volatile organic compounds (VOCs) and particulate matter (dust, ash, salt particles). What’s the difference between primary and secondary? Primary sources can be described […]
Which social science is called the mother of social science?
Which social science is called the mother of social science? Sociology is one of the most open disciplines toward other disciplines. Hence its called the mother of all social sciences. Which is called mother of all social sciences? And sociology is the mother of all social sciences . The simplest reason for the subject being […]
Do potato chips have radiation?
Do potato chips have radiation? Note – LNT is a leftover Cold War ideology that states all radiation is bad, even the background radiation we are bathed in every day, even the 3,200 pCi of radiation in a bag of potato chips (yes, potato chips have the most radioactivity of any food, but they taste […]
When you are turning left you must yield?
When you are turning left you must yield? Drivers turning left must yield to oncoming vehicles going straight. At a four-way stop, the driver reaching the intersection first may proceed before the other drivers (after coming to a complete stop). How should you give an arm signal to the left? Left Turn Arm Signal The […]