Category: Physics

How are RC circuits used in real life? The RC circuit has thousands of uses and is a very important circuit to study. Not only can it be used to time circuits, it can also be used to filter out unwanted frequencies in a circuit and used in power supplies, like the one for your […]

What is the best title for friendship? You and Me… Buds Forever! You Can Count on Me. You Can Never Have Too Many Friends. You Make My Heart Sing. You, My Friend, are Part of All My Best Memories! You’re one in a Million. You’ve Got a Friend in Me. Your Friendship Makes My Heart […]

Why did the US stay in Vietnam for so long? China had become communist in 1949 and communists were in control of North Vietnam. The USA was afraid that communism would spread to South Vietnam and then the rest of Asia. It decided to send money, supplies and military advisers to help the South Vietnamese […]

Is air a renewable? Air and water are renewable natural resources too. There is one other type of renewable natural resource. It includes sources of power like sun and wind energy. Are plants renewable or nonrenewable? Plants are a renewable resource because they grow quickly and can replace themselves at fast rates. Several factors influence […]

What is a ABPI Doppler? Ankle brachial pressure index (ABPI) The ABPI is the ratio of the ankle systolic blood pressure to the brachial systolic blood pressure and can be measured using a sphygmomanometer and a hand held Doppler device [SIGN, 2010]. It is the most reliable way to detect arterial insufficiency. What should ABPI […]

How do you apologize for sending the wrong attachment? Dear [Recipient Name], I am writing to sincerely apologize for sending you the wrong attachment in the mail [Date] under the subject [Subject]. I got confused between the two mails and sent you the other attachment by mistake. I understand this might have caused you inconvenience. […]

How do you know if a molecule is radical? My TA told us that the easiest way to tell if a molecule is a radical is if it has an odd-numbered amount of valence electrons. If it has an even number of valence electrons then it would not be a radical. How are radicals applied […]

How does natural selection affect humans? Probably more than you might think, a new study suggests. Natural selection is still influencing the evolution of a wide variety of human traits, from when people start having children to their body mass index, reports a study published Monday in the journal Proceedings of the National Academy of […]

What happens to the kinetic energy when the mass is doubled? The kinetic energy of the object is directly proportional to the mass, therefore on doubling the mass kinetic energy will also become double. What happens to the kinetic energy when the mass and speed is tripled? The equation KE = ½ mv² shows that […]

What are the four laws of logic? The Law of Identity; 2. The Law of Contradiction; 3. The Law of Exclusion or of Excluded Middle; and, 4. The Law of Reason and Consequent, or of Sufficient Reason.” What is the use of logic in law? One use of logic in the law is motivated by […]