What is the oblateness of Earth? a quantity that characterizes the degree to which the earth is flattened in the direction of its axis of rotation, that is, the deviation of the earth’s shape from that of a sphere. Where does the oblateness of Earth occur? poles How far you live from the equator is […]
What are the main source of silica?
What are the main source of silica? Also called silica sand or quartz sand, silica is made of silicon dioxide (SiO2). Silicon compounds are the most significant component of the Earth’s crust. Since sand is plentiful, easy to mine and relatively easy to process, it is the primary ore source of silicon. The metamorphic rock, […]
What is an example of cartography?
What is an example of cartography? The definition of cartography is the making of maps or charts. An example of cartography is making an updated map of the world. (uncountable) The creation of charts and maps based on the layout of a territory’s geography. What are the types of cartography? Types of Cartography General Reference. […]
How does a streams gradient affect its velocity?
How does a streams gradient affect its velocity? Gradient is usually expressed in feet per mile of meters per kilometer. Gradient looks at how far the water drops over the distance the water actually flows. The gradient influences the velocity of the stream. The steeper the gradient, the higher will be the velocity if all […]
Which type of power plant is best?
Which type of power plant is best? Hydroelectric power plants. Hydroelectric power plants are one of the most effective and eco-friendliest of all power plants. Nuclear power plants. Nuclear power stations also top the list of power plants that can produce massive amounts of energy. Coal-run power plants. Where was the first power plant? Pearl […]
What happens to a dead star?
What happens to a dead star? Stars die because they exhaust their nuclear fuel. Once there is no fuel left, the star collapses and the outer layers explode as a ‘supernova’. What’s left over after a supernova explosion is a ‘neutron star’ – the collapsed core of the star – or, if there’s sufficient mass, […]
Why is it called hydraulics?
Why is it called hydraulics? The word “hydraulics” originates from the Greek word ὑδραυλικός (hydraulikos) which in turn originates from ὕδωρ (hydor, Greek for water) and αὐλός (aulos, meaning pipe). Who invented pneumatics? Samuel Ingersoll When was pneumatics first used? The origins of pneumatics can be traced back to the first century when ancient Greek […]
Where are the objective lenses located on a microscope?
Where are the objective lenses located on a microscope? The objective lens of a microscope is the one at the bottom near the sample. At its simplest, it is a very high-powered magnifying glass, with very short focal length. This is brought very close to the specimen being examined so that the light from the […]
What was the source of power in the Middle Ages?
What was the source of power in the Middle Ages? Even as agriculture emerged, followed by towns and cities, human muscles — and those of domesticated animals — were still the main source of power. How has energy consumption changed over the past 50 years? Over the last 50 years, while energy consumption grew substantially, […]
Why is the slope of a velocity-time graph acceleration?
Why is the slope of a velocity-time graph acceleration? The slope of a velocity graph represents the acceleration of the object. So, the value of the slope at a particular time represents the acceleration of the object at that instant. How do you find the slope of a velocity-time graph? Using the Slope Equation Pick […]