How many types of sand are there? In the United States, sand is commonly divided into five sub-categories based on size: very fine sand ( 1⁄16 – 1⁄8 mm diameter), fine sand ( 1⁄8 mm – 1⁄4 mm), medium sand ( 1⁄4 mm – 1⁄2 mm), coarse sand ( 1⁄2 mm – 1 mm), and […]
What is the relationship between gear ratio and speed?
Why is power proportional to voltage?
Why is power proportional to voltage? If the resistance is constant, then increasing the voltage increases the current proportionally, exactly proportionally in the ideal case. If you measure power into a current regulator diode, it will increase more like proportional to voltage since current will be more-or-less constant over a range of voltages. Does increase […]
What color is the sun star?
What color is the sun star? Color and Temperature Table 1. Example Star Colors and Corresponding Approximate Temperatures Star Color Approximate Temperature Example White 10,000 K Vega Yellow 6000 K Sun Orange 4000 K Aldebaran Are all stars white? All stars are white because they emit all wavelengths. Having said that their temperatures mean that […]
Why do you cry when you poop?
Why do you cry when you poop? When your abdominal muscles flex and tighten to help push poop out of your colon, they put pressure on the organs and membranes around them. This pressure, along with your regular breathing , can put strain on the nerves and blood vessels that line the abdomen, resulting in […]
Which machine requires both AC and DC supply?
Which machine requires both AC and DC supply? The universal motor is a type of electric motor that can operate on either AC or DC power and uses an electromagnet as its stator to create its magnetic field. It is a commutated series-wound motor where the stator’s field coils are connected in series with the […]
How can we prevent diseases Class 9?
How can we prevent diseases Class 9? How Can Disease Be Prevented? Hygienic conditions should be maintained in the surroundings we live in. Safe drinking water should be provided to prevent water-borne diseases. Provide a clean environment which prevents the breeding of mosquitoes. What are the two basic principles of prevention of diseases Class 9? […]
Which property of electron is used in electron microscope?
Which property of electron is used in electron microscope? An electron beam allows us to see at very small scale because electron can also behaves as light. So the beautiful property of light i.e., wave nature of electron uses for electron microscope. What is the basic principle of electron microscope? An electron microscope uses an […]
Where does most of the sand on a beach come from?
Where does most of the sand on a beach come from? Short answer: Sand on beaches around the world comes from the weathering and pulverization of rocks over millions of years, along with fragments of shelled creatures and coral and that have been deposited on the coast by the waves. Why is beach nourishment considered […]