How can you prove that sound is produced by vibration? Take a rubber string stretch it tightly between two supports. Pluck the string, the string begins to vibrate. Then we will be able to hear some sound, stop the movement of the string. Even the sound also stops. Why do I feel small vibrations in […]
What is a example of hardness?
What is a example of hardness? Hardness is a measure of how much a material resists changes in shape. Hard things resist pressure. Some examples of hard materials are diamond, boron carbide, quartz, tempered steel, ice, granite, concrete. Ability of material to resist wear, tear, scratching, abrasion cutting is called hardness. What is the difference […]
How can you tell if your well is low?
How many kW is a lift motor?
Is sleet or ice worse?
What is the angle of rotation of a circle?
Can zinc be used to protect iron from rusting?
What is the resolving power of an electron microscope?
What is the resolving power of an electron microscope? Since the wavelength o f electrons are 100,000 times shorter than visible light the electron microscopes have greater resolving power. They can achieve a resolution of 0.2nm and magnifications upto 2,000,000 x. Light microscopes show limited resolution than electron microscopes. Which lens has the greatest resolving […]
What would happen if it rained forever?
What would happen if it rained forever? Floods would turn into mudslides which would turn into full landslides. This would compounded by the assumption that due to rain, little direct sunlight would come through, which would mean vegetation would start to die off. Many plants would die from being completely waterlogged. Is the whole world […]
Who uses 60Hz?
Who uses 60Hz? Only a handful use 60Hz. The standard in the United States is 120V and 60Hz AC electricity….Listing per country. Country Voltage Frequency Austria 230V 50Hz Azerbaijan 220V 50Hz Azores 230V 50Hz Bahamas 120V 60Hz Why does Japan use 100v? The reason Japan became 100 volts was at the time Japan imported generators […]