Category: Physics

How do humans get nitrogen for fertilizer? So they get the nitrogen they need from the soil where bacteria have converted it into a usable form. To grow more crops, people have been transforming nitrogen from the atmosphere into nitrogen fertilizers and then adding the fertilizers to the plants. What is nitrogen cycle diagram? The […]

How do you know if a road is 20 mph? There are no physical measures such as chicanes or humps in the roads that have been added to an original 20mph zone. Instead you’ll see road signs at the entry points into the 20mph zone, together with ’roundels’ or circles with ’20’ painted on the […]

Can we slow or even reverse global warming? Yes. While we cannot stop global warming overnight, or even over the next several decades, we can slow the rate and limit the amount of global warming by reducing human emissions of heat-trapping gases and soot (“black carbon”). How you can stop global warming? How Can We […]

When you are emotionally distressed you should talk to someone you trust and get some perspective on your problems? When you are emotionally distressed, you should talk to someone you trust and get some perspective on your problems. When you are emotionally distressed, you should take a moment and recognize your anger for what it […]

What is scale variable? Essentially, a scale variable is a measurement variable — a variable that has a numeric value. This could be an issue if you’ve assigned numbers to represent categories, so you should define each variable within the measurement area individually. What types of scales are used to measure the variables? Four Types […]

Which chord holds the most tension? Finally dominant chords are the sounds that are going to be most tense in any given key… That’s the reason the 2-5-1 progression sounds so nice and is so widely used. And the reason that the other posters said that the 5th or 7th are the most tense chords. […]

Will Sears survive 2020? Sears said in November that it planned to close 96 stores in February, including 51 Sears stores and 45 Kmart stores. Sears parent company Transform Holdco will operate just 182 stores after the closings. How many Sears stores are still open 2020? It once operated more than 3,500 locations across the […]

Is Earth a closed system? The Earth is a closed system for matter That is a list of all basic elemental materials on our planet. Because of gravity, matter (comprising all solids, liquids and gases) does not leave the system. It is a closed box. So the chemical matter we have on Earth will always […]

How do you mess up a GPS signal? How a GPS jammer works: The user plugs the jammer into the automotive auxiliary power outlet. The unit is placed close to the installed GPS tracker. When active, the GPS jammer generates an interference signal over a 5 to 10 meter radius to disrupt reception of the […]

How many types of bonds can a carbon atom form? four Can a single carbon atom exist on its own? Pure carbon can exist in different forms, depending on how its atoms are arranged. The forms include diamond, graphite, and fullerenes. All three forms exist as crystals, but they have different structures. Their different structures, […]