Category: Physics

Which of these tactics does the most to reduce soil erosion? The four most common soil erosion prevention methods are vegetation, geo textiles, mulch, and retaining walls. How do you fight erosion? You can reduce soil erosion by: Maintaining a healthy, perennial plant cover. Mulching. Planting a cover crop – such as winter rye in […]

Which two ways is energy measured? Which describes the two ways that energy is measured? in convection and in temperature. How is human energy measured? In human biol- ogy research, energy is most often measured in kilocalo- ries (kcal). Another common unit for measuring energy is the joule or the kilojoule [1 kilojoule (kJ) 5 […]

How do you calculate perihelion distance? The perihelion distance P=a(1−e) and the aphelion distance A=a(1+e) where e=0.875 is the eccentricity. This gives a perihelion distance of 2.375AU and an aphelion distance of 35.625AU. Is Kepler’s third law correct? Kepler’s third law provides an accurate description of the period and distance for a planet’s orbits about […]

Is the sun radiant energy? Does the Sun produce radiant energy? Yes, the Sun produces a lot of radiant energy, which is transmitted to Earth as light. Plants convert the electromagnetic energy in sunlight into chemical energy for their food, through a process called photosynthesis. What gives off radiant energy? The term radiant energy refers […]

What are examples of reactants? Examples of Reactants The wax of a candle and oxygen in air are reactants in a combustion reaction. When you burn methane gas, the reactants are methane (CH4) and oxygen in air (O2). When water forms from its elements, the reactants are hydrogen (H2) and oxygen (O2) gas. What are […]

How do you find centroid? Centroid of a Triangle Definition: For a two-dimensional shape “triangle,” the centroid is obtained by the intersection of its medians. The centroid of a triangle = ((x1+x2+x3)/3, (y1+y2+y3)/3) To find the x-coordinates of G: To find the y-coordinates of G: Try This: Centroid Calculator. How do you find the centroid […]

What are the pros and cons to oil? The process of bringing Oil to the surface for us to use is called oil drilling, this creates many Pros and Cons of Oil Energy….Pros of Oil Energy Oil Laid the Foundation for Renewable Energy. Oil is Cheap. The Oil Industry Produces Jobs. Oil Goes a Long […]

What is the purpose of stick drop test? This test uses the known properties of gravity to determine how long it takes a person to respond to the dropping of an object by measuring how far the object can falls before being caught. How do I improve my ruler drop test? Ruler drop test Person […]

What happened on the island in 1977 which caused a large number of finches to die? During 1977 there was a major drought on Daphne Major and many of the plants on the island produced few or no seeds. Only the large birds with large beaks were able to crack open the husks and eat […]

What does a cirrus cloud bring? Cirrus clouds are the most common of the high clouds. They are composed of ice and are thin, wispy clouds blown in high winds into long streamers. Cirrus clouds are usually white and predict fair to pleasant weather. By watching the movement of cirrus clouds you can tell from […]