Where does US get its electricity? According to the U.S. Energy Information Administration, most of the nation’s electricity was generated by natural gas, coal, and nuclear energy in 2019. Electricity is also produced from renewable sources such as hydropower, biomass, wind, geothermal, and solar power. What percent of US power is renewable? In 2020, renewable […]
What is the 3 second rule in lacrosse?
What is the 3 second rule in lacrosse? As you might imagine, the three-second rule gives offensive players three seconds to do one of two things: pass the ball or change her cradle, which is the manner in which she’s holding the ball. If the offensive player isn’t able to adhere to this rule, the […]
Why does a moving charge create magnetic field?
Why does a moving charge create magnetic field? A charged particle moving without acceleration produces an electric as well as a magnetic field. It produces an electric field because it’s a charge particle. All of a sudden when it starts moving, it starts producing a magnetic field. Why is B used for magnetic field? Originally […]
What is the most important element in the universe?
What is the most important element in the universe? Hydrogen is the most abundant element in the Universe; helium is second….Solar system. Nuclide Hydrogen-1 A 1 Mass fraction in parts per million 705,700 Atom fraction in parts per million 909,964 What’s the most useless element? Occurrence. Protactinium is one of the rarest and most expensive […]
How long will it take for a sound wave of 25 cm wavelength and 1.5 Khz frequency of to travel a distance of 1.5 km?
What is adaptation example?
What is adaptation example? Adaptation is the evolutionary process where an organism becomes better suited to its habitat. An example is the adaptation of horses’ teeth to grinding grass. Grass is their usual food; it wears the teeth down, but horses’ teeth continue to grow during life. Is sweating a human adaptation? The only mechanism […]
How does a roller coaster work without an engine?
How does a roller coaster work without an engine? As the roller coaster falls, it accelerates and builds up enough kinetic energy to propel it through the remainder of the ride. No engine is required because of inertia. As you ride a roller coaster, its wheels rub along the rails, creating heat as a result […]
How do you find the largest radius?
How do you find the largest radius? Atomic radii vary in a predictable way across the periodic table. As can be seen in the figures below, the atomic radius increases from top to bottom in a group, and decreases from left to right across a period. Thus, helium is the smallest element, and francium is […]
What is the difference between philosophy and scientific method?
What is the difference between philosophy and scientific method? The main difference is in the way they work and treat knowledge. 2. Science is concerned with natural phenomena, while philosophy attempts to understand the nature of man, existence, and the relationship that exists between the two concepts. Science also takes answers and proves them as […]
What is a simple frequency distribution?
What is a simple frequency distribution? A frequency distribution is a representation, either in a graphical or tabular format, that displays the number of observations within a given interval. The interval size depends on the data being analyzed and the goals of the analyst. Frequency distributions are typically used within a statistical context. Why should […]