Category: Physics

What are core drill bits? Core drill bits are designed to cut large holes in dense materials, like masonry, brick and stone, and remove a core of debris. They feature large notched teeth that cut cleanly and precisely. What is a coring bit used for? A core bit (Fig. 1, Fig. 2) is a drilling […]

Why is my car making a whining noise when I drive? If you hear a whining noise from your car’s engine, it may mean much the same thing: there’s a component that’s worn out. If these parts break or wear down entirely, they could cause damage, so hearing a whining sound means that it’s time […]

What is called battery? A battery is a device that converts chemical energy contained within its active materials directly into electric energy by means of an electrochemical oxidation-reduction (redox) reaction. This type of reaction involves the transfer of electrons from one material to another via an electric circuit. What is the symbol of battery? Cells […]

How long can you live with high cholesterol? The longer you have high cholesterol, the more likely you are to develop heart disease. In one study, people who had high levels for 11 years or more had double the risk than those who had them for 10 years or less. Most people with high cholesterol […]

How many countries are in South Asia? South Asia Area 5,134,641 km2 (1,982,496 sq mi) Ethnic groups Indo-Aryan, Iranian, Dravidian, Sino-Tibetan, Austroasiatic, Turkic etc. Religions Hinduism, Islam, Christianity, Buddhism, Sikhism, Jainism, Zoroastrianism, Irreligion Demonym South Asian Countries show 8 states What countries are in South Asia? It includes the countries of Bangladesh, Bhutan, India, Pakistan, […]

What can cause high electricity usage? Why is my electric bill so high? Faulty appliances. Domestic appliances can use a huge amount of electricity – dishwashers, washing machines and tumble dryers are some of the biggest household energy consumers. Faulty wiring. Faulty electrical wiring is also very dangerous and can easily lead to a home […]

Why is cooking an egg in a frying pan endothermic? a. The endothermic reaction described is of cooking an egg. In the process, the heat from the pan is being absorbed by the egg, which is the process of it cooking, so therefore the end result is a cooked egg. If the egg did not […]

What is gravity in simple words? The answer is gravity: an invisible force that pulls objects toward each other. Earth’s gravity is what keeps you on the ground and what makes things fall. An animation of gravity at work. Albert Einstein described gravity as a curve in space that wraps around an object—such as a […]

What is the main purpose of a foreign policy? The main objective of foreign policy is to use diplomacy — or talking, meeting, and making agreements — to solve international problems. They try to keep problems from developing into conflicts that require military settlements. What are the four goals of foreign policy? The State Department […]

How do you kill germs on your hands? Washing hands with soap and water is the best way to remove all types of germs and chemicals. If soap and water are not available, use an alcohol-based hand sanitizer with at least 60% alcohol. How long do germs live on hands? Flu germs live for about […]