Is the Earth a positive or negative charge?

Is the Earth a positive or negative charge? Description. Atmospheric electricity is always present, and during fine weather away from thunderstorms, the air above the surface of Earth is positively charged, while the Earth’s surface charge is negative. What is the constant charge of earth? According to the charge-neutrality principle, the electric charge of the […]

What are the 4 types of science?

What are the 4 types of science? There are four major branches of science; each branch is categorized in different type of subjects that covers different areas of studies such us chemistry, physics, math, astronomy etc. The four major branches of science are, Mathematics and logic, biological science, physical science and social science. What is […]

Is the entire ocean floor covered in sand?

Is the entire ocean floor covered in sand? The simple answer is that not all of the ocean floor is made of sand. The ocean floor consists of many materials, and it varies by location and depth. In shallow areas along coastlines, you’ll mainly find sand on the ocean floor. Over 70 percent of Earth’s […]

What is the purpose of flight spoilers?

What is the purpose of flight spoilers? The primary purpose of the ground spoilers is to maximise wheel brake efficiency by “spoiling” or dumping the lift generated by the wing and thus forcing the full weight of the aircraft onto the landing gear. The spoiler panels also help slow the aircraft by producing aerodynamic drag. […]

What are the three common fault types?

What are the three common fault types? There are three kinds of faults: strike-slip, normal and thrust (reverse) faults, said Nicholas van der Elst, a seismologist at Columbia University’s Lamont-Doherty Earth Observatory in Palisades, New York. What is the difference between reverse fault and normal fault? In a reverse fault, the hanging wall displaces upward, […]

What are two ways to increase the resistance in a wire?

What are two ways to increase the resistance in a wire? length – longer wires have greater resistance. thickness – smaller diameter wires have greater resistance. temperature – heating a wire increases its resistance. What are three ways to decrease resistance in a wire? Changing the material, increasing the cross section area, lowering the temperature, […]

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