Why does a straw look bigger in water? Place a straw in a glass of water, and behold: It looks broken. But below, when the light also travels through water, the refraction causes the image of the straw to be in a slightly different location. The water also acts as a type of magnifying lens, […]
What are the features of a sedimentary rock?
What are the features of a sedimentary rock? Sedimentary rocks contain rounded grains in layers. The oldest layers are at the bottom and the youngest layers are at the top. Sedimentary rocks may contain fossils of animals and plants trapped in the sediments as the rock was formed. What type of minerals are found in […]
What is the electric potential at the halfway point between the two charges?
What is the electric potential at the halfway point between the two charges? At the midpoint between the charges, the electric potential due to the charges is zero, but the electric field due to the charges at that same point is non-zero. At what point or points on the is the electric potential zero? PROBLEM […]
At what age are people most physically active?
At what age are people most physically active? Age The age group 18 to 44 was the most likely to exercise. Of those individuals age 18 to 44, 59.7 percent reported exercising at least three times a week for half an hour or more. This compares with 53.5 percent and 46.7 percent, respectively, for the […]
What happens to the pattern if we try to determine which slit the electron goes through by using a laser placed directly behind the slits?
What happens to the pattern if we try to determine which slit the electron goes through by using a laser placed directly behind the slits? What happens to the pattern if we try to determine which slit the electron goes through by using a laser placed directly behind the slits? If the rate of electrons […]
What are the five characteristics of ionic compounds?
What are the five characteristics of ionic compounds? Properties Shared by Ionic Compounds They form crystals. They have high melting points and high boiling points. They have higher enthalpies of fusion and vaporization than molecular compounds. They’re hard and brittle. They conduct electricity when they are dissolved in water. They’re good insulators. How can you […]
How long does it take to get citizenship after filing N-400?
How long does it take to get citizenship after filing N-400? 8 to 12 months How many immigrants are denied citizenship each year? Immigration and Citizenship Data on denied Naturalization applications 2014 2019 Citizenship by Naturalization Petitions Denied 66,767 97,789 Can I renew my green card if my citizenship is denied? Certainly, there are many […]
Is mg S oxidized?
Is mg S oxidized? Mg + S → MgS S is an oxidizing agent, Mg is a reducing agent. What is the chemical formula for MgS? Magnesium sulfide PubChem CID 82824 Chemical Safety Laboratory Chemical Safety Summary (LCSS) Datasheet Molecular Formula MgS Synonyms Magnesium sulfide sulfanylidenemagnesium 12032-36-9 Magnesium sulfide (MgS) Magnesium sulphide More… Molecular Weight […]
Under what condition concave lens form a real image?
Under what condition concave lens form a real image? Real images can be produced by concave mirrors and converging lenses, only if the object is placed further away from the mirror/lens than the focal point, and this real image is inverted. What does a concave lens do to an image? A lens refracts light and […]
What does 4 mean in the formula 4na2so3?
What does 4 mean in the formula 4na2so3? Answer: The ‘4’ in front of sodium sulfate formula indicates that there are four molecules of sodium sulfate. What does the 4 mean in the formula 4na2so3 there are four atoms of sodium there are four atoms of sodium sulfite There are four molecules of sodium sulfite […]