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 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 […]
What electromagnetic wave is harmful to humans?
What electromagnetic wave is harmful to humans? Extreme ultraviolet and higher frequencies, such as X-rays or gamma rays are ionizing, and these pose their own special hazards: see radiation poisoning. The most common health hazard of radiation is sunburn, which causes between approximately 100,000 and 1 million new skin cancers annually in the United States. […]
When two current-carrying parallel conductors do they attract?
When two current-carrying parallel conductors do they attract? So if you have two current-carrying, parallel wires with magnetic fields circling around them in the same direction, they will attract each other, as shown in the tutorial; at the point at which their respective magnetic fields intersect, they are traveling in opposite directions, and opposites attract. […]
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 […]
What are the limitations of descriptive statistics?
What are the limitations of descriptive statistics? Descriptive statistics are limited in so much that they only allow you to make summations about the people or objects that you have actually measured. You cannot use the data you have collected to generalize to other people or objects (i.e., using data from a sample to infer […]
Can my boss send me home without pay?
What are three ways the periodic table is organized?
What are three ways the periodic table is organized? Periodic table is organized by their valence electrons, atomic number and their atomic mass ( and also their reactivity/ groups and families). Periodic table lists their elemental symbol, atomic mass and their name. What are 4 ways the periodic table is organized? The periodic table of […]
What is the difference between an ECM motor and a variable speed motor?
What is the difference between an ECM motor and a variable speed motor? The word “variable speed” refers to the blower motor that is inside your air handler or furnace. It is an ECM (electronically commutated motor). An ECM’s are types of DC motors that function with a built-in inverter and a magnet rotor. Are […]
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. […]