What is circuit breaker and how it works? A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. Its basic function is to interrupt current flow after a fault is detected. What is the circuit breaker rule? Circuit-breaker […]
What force does a trampoline have to apply to a 55.0 kg gymnast to accelerate her straight up at 7.5 M s2 do not ignore gravity?
What are the negative effects of genetically modified food?
What are the negative effects of genetically modified food? It is known that the main concerns about adverse effects of GM foods on health are the transfer of antibiotic resistance, toxicity and allergenicity. There are two issues from an allergic standpoint. What is the difference between Non-GMO and GMO free? Organic food is typically pesticide-free, […]
Who looked at teeth scrapings and pond water under the microscope?
Who looked at teeth scrapings and pond water under the microscope? Leeuwenhoek would stare at samples through the sphere in bright daylight, and, one day beginning in 1674, viewing a drop of pond water, he observed things moving which he called “animalcules.” This was the first documented view of the living microworld, that there are […]
What are the maximum and minimum resultant of the two forces?
What are the maximum and minimum resultant of the two forces? The resultant of a number of forces acting on a body is the vector sum of all the forces acting on the body. The maximum resultant forces is found when all the forces have the same direction (parallel forces). The minimum resultant force is […]
What types of models is most likely to be used to predict earthquakes?
What types of models is most likely to be used to predict earthquakes? Many researchers have suggested that using computer models would be more advisable to use to predict the earthquake. What are 3 reasons models are used in science? Models are useful tools in learning science which can be used to improve explanations, generate […]
Does frozen CO2 melt?
Does frozen CO2 melt? The freezing (or sublimation) point of carbon dioxide is -78.5 degrees Celsius, or -109.2 degrees Fahrenheit. Above its triple point temperature, -56.6 degrees Celsius, or -69.8 degrees Fahrenheit, and under pressures greater than 5.11 atm, carbon dioxide melts. At what temperature does CO2 liquify? For example, the critical temperature for carbon […]
What happens to the electrical force between two charges if the distance between them is doubled?
What happens to the electrical force between two charges if the distance between them is doubled? According to Coulomb, the electric force for charges at rest has the following properties: Like charges repel each other; unlike charges attract. Therefore, if the distance between the two charges is doubled, the attraction or repulsion becomes weaker, decreasing […]
Are we made of stars?
Are we made of stars? Stars that go supernova are responsible for creating many of the elements of the periodic table, including those that make up the human body. ‘It is totally 100% true: nearly all the elements in the human body were made in a star and many have come through several supernovas. Is […]
What are interesting topics?
What are interesting topics? They also work well if a person shows an interest in the topic. Cars. What was the first car you owned? Holidays. What were your favorite holidays when you were a child? Coffee. Do you like coffee? Photography. Do you take a lot of pictures? The beach. Do you like going […]