Can you see geostationary satellites? Unlike the ISS and the many objects in low Earth object, geostationary satellites are visible all night long every night of the year. They only disappear for up to 70 minutes a day when entering Earth’s shadow about two weeks either side of each equinox. What is the difference between […]
How does the force of gravitation between two objects change when the distance between them is reduced to half Class 9 Ncert?
How does the force of gravitation between two objects change when the distance between them is reduced to half Class 9 Ncert? How does the force of gravitation between two objects change when the distance between them is reduced to half? Ans. The force of gravitation between two objects is inversely proportional to the square […]
What is the normal to a line?
Is it important to study science?
Is it important to study science? Firstly, science helps our understanding of the world around us. Everything we know about the universe, from how trees reproduce to what an atom is made up of, is the result of scientific research and experiment. Human progress throughout history has largely rested on advances in science. What are […]
What is the next step after radiation for prostate cancer?
What is the next step after radiation for prostate cancer? After radiotherapy or brachytherapy, your PSA should drop to its lowest level (nadir) after 18 months to two years. Your PSA level won’t fall to zero as your healthy prostate cells will continue to produce some PSA. Your PSA level may actually rise after radiotherapy […]
What color light does a green object absorb?
What color light does a green object absorb? This graphic shows what color will be perceived when a material absorbs in certain regions of the visible spectrum….Complementary Colors. Color absorbed Color seen Blue Orange Green Red Yellow Violet Orange Blue Why does blue glow yellow? Because yellow light is a mixture of red and green […]
Why is the Ph of ethanol 7?
Why is the Ph of ethanol 7? Ethanol’s hydroxyl group causes the molecule to be slightly basic. It is almost neutral like water. The pH of 100% ethanol is 7.33, compared to 7.00 for pure water. This reaction is not possible in an aqueous solution, as water is more acidic, so that hydroxide is preferred […]
How do you know what type of function it is?
How do you know what type of function it is? One method for identifying functions is to look at the difference or the ratio of different values of the dependent variable. For example, if the difference between values of the dependent variable is the same each time we change the independent variable by the same […]
What should be used to put out electrical fire sand?
What should be used to put out electrical fire sand? In the case of electrical fires, also known as energized electrical fires, a class C fire extinguisher is needed to put it out. Can you melt dry ice with fire? Fire needs oxygen to burn, in the presence of carbon dioxide, the flame will extinguish. […]
What are 3 uses for lanthanum?
What are 3 uses for lanthanum? Lanthanum and other rare-earth compounds are used in carbon arc lighting, specifically in the film and television industry for studio lighting and projection. Lanthanum oxide (La2O3), also called lanthana, improves the alkali resistance of glass and is used in making camera lenses and in other special glasses. Is scandium […]