Category: Physics

What is the difference between centripetal acceleration and centrifugal force? The centripetal acceleration is the acceleration a body experiences in centripetal motion (moving in a circle or along an arc). On the other hand, the centrifugal force is a fictitious (imaginary) force the object experiences during circular motion. Why does centripetal force work? As the […]

How many hours of driving a day is safe? You should not drive for more than 9 hours a day, excluding breaks. For every 4.5 hours driving you should take breaks amounting to 45 minutes. For long-distance driving, this means you can drive around 500 miles safely in a day. Can I drive 1000 miles […]

What are some ways to change the shape of an object? When a force acts on an object, the object may change shape by bending, stretching or compressing – or a combination of all three shape changes. How do objects change? A force can speed up or slow down an object. A force can change […]

What is the most common form of heat loss in newborns? Newborns lose heat by conduction when placed naked on a cold table, weighing scale or are wrapped in a cold blanket or towel. Evaporation. This is the loss of heat from a newborn’s wet skin to the surrounding air. Newborns lose heat by evaporation […]

What is the meaning of feeding trough? noun A trough in which is placed food for animals, especially for swine. noun A long, narrow trough, about 18 inches wide, 4inches deep, and 1,500 feet long, placed between the rails of a railway-track and partly filled with water. What are the two types of feeding? We […]

What is the most dangerous animal in the Mariana Trench? Great White Shark They’re behind the most attacks on humans, the most fatalities, and – perhaps most chilling – they can be found in any and every ocean across the world. What’s the monster in underwater? Cthulhu Is Cthulhu underwater 2020? The final act of […]

How many joules does it take to boil 1 gram of water? 4.186 joule How much energy does it take to boil a cup of water? 4.184 * 250 * 79 = 82,634 joules. In other words, it takes more than 82.6 kJ to heat a cup of water to boiling point!! We usually only […]

Why is Del Cross E 0? So del cross E is zero. Because the quantity that it is declared equal to is a time derivative, which will have to be zero in a static problem. How do you know if an electric field is conservative? We can prove that electric field is conservative in nature […]

What are the basic units of heredity? A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. What is the smallest unit of heredity? genes Is a gene smaller than a chromosome? From smallest to largest: nucleotide, gene, […]

Why do siblings hate each other? Adult children often find it hard to feel anger toward their parents. Adult siblings are much more likely to act out toward each-other all the hurt, anger and frustration that really should be directed toward their parents. Instead of being there for their siblings, they become alienated, adversarial or […]