When should I worry about snow on my roof? A final point to remember: It isn’t wise to remove all the snow on your roof as it can cause damage to tiles and start leaks. At least 2 inches of snow should remain on your roof. When should you remove snow from your roof? According […]
Why is fluorine the most reactive element in Group 7?
Why is fluorine the most reactive element in Group 7? Fluorine is the most reactive element in Group 7, and is even more reactive than chlorine. Fluorine’s outer shell is closer to the nucleus and has fewer filled shells between it and the nucleus, so the attraction for a new electron is greater and so […]
Why is sound louder in cold air?
How gamma rays are used in medicine?
How gamma rays are used in medicine? Gamma rays are high energy electromagnetic waves which are only stopped by thick lead. This means they can easily pass through medical equipment, such as syringes. As gamma rays pass through the packaging and syringe, they will kill viruses and bacteria which contaminate the syringe. How do doctors […]
What happen to the current as the resistance increases?
What happen to the current as the resistance increases? Answer: the current in a given circuit is inversely proportional to the resistance in the circuit, which means that the current will decrease if the resistance is increased. Is length directly proportional to resistance? The resistance of a wire is directly proportional to its length and […]
Is technology ruining family life?
Is technology ruining family life? Modern technology is ruining families’ quality time together, according to new research. Almost nine in 10 parents think gadgets get in the way of their time together as a family – and 86 per cent admit there are times when everyone is at home, but separately watching TV or playing […]
What are three differences between a spreadsheet and a database?
What are three differences between a spreadsheet and a database? Difference between Spreadsheet and Database : Spreadsheet Database It is an interactive computer application for organization, analysis and storage of data in tabular form. It is an organized collection of data generally stored and accessed electronically from a computer system. It stores less data. It […]
Are there alchemists today?
Are there alchemists today? Indian alchemists and Chinese alchemists made contributions to Eastern varieties of the art. Alchemy is still practiced today by a few, and alchemist characters still appear in recent fictional works and video games. Many alchemists are known from the thousands of surviving alchemical manuscripts and books. How do you know you’re […]
What are the 2 types of comets?
What are the 2 types of comets? There are two categories of comet, based on the amount of time they take to orbit the Sun. Short-period comets take less than 200 years, and long-period comets take over 200 years, with some taking 100,000 to 1 million years to orbit the Sun. What is the difference […]
How hard is it to qualify for the Boston Marathon?
How hard is it to qualify for the Boston Marathon? The Boston Marathon is one of the most difficult races to qualify for, with an acceptance rate of only about 2%. The qualifying time requirement varies from person-to-person. What Pace is a 3 hour 20 minute marathon? Most marathoners will follow the average splits columns. […]