What is the density triangle? The triangle is divided into three parts, with density occupying the top portion and mass and volume occupying the bottom two portions. The positions of each element of the triangle show us how they relate to one another through the formula above (Density = Mass / Volume, or ρ = […]
What is good miles per gallon?
What is good miles per gallon? Don’t expect to attain higher than 20 mpg overall with a non-hybrid, and most offer less than 30 mpg on the highway. The best fuel-efficient non-electric vehicles get the following EPA-estimated combined numbers: Small Pickup: Chevrolet Colorado 2WD Diesel and GMC Canyon 2WD Diesel get 23 mpg. How much […]
Who gave the best definition of economics?
Who gave the best definition of economics? Lionel Robbins (1932) developed implications of what has been termed “[p]erhaps the most commonly accepted current definition of the subject”: Economics is a science which studies human behaviour as a relationship between ends and scarce means which have alternative uses. What is economics and examples? Introduction to Economic […]
What are the factors affecting thrust?
What are the factors affecting thrust? FACTORS AFFECTING THRUST The factors that affect the thrust of a gas turbine engine include air density, airspeed/ram effect and engine RPM. Why does thrust decrease as airspeed increases? The faster the aircraft speed, the less acceleration is being created on the intake air. Therefore thrust decreases with increasing […]
Is beating of drum periodic motion?
Is beating of drum periodic motion? The beating of the drum occurs at defined period. So, it is a periodic motion. Which is periodic wind? Periodic winds blow at regular intervals or in regular cycles. They are winds that result from localised differences in pressure and temperature. For example, land and sea breezes and the […]
What are the 4 steps of the IPDE process?
What are the 4 steps of the IPDE process? The four steps of the IPDE process are: I—Identify—Locate potential hazards within the driving scene. P—Predict—Judge where the possible points of conflict may occur. D—Decide—Determine what action to take, when, and where to take it. E—Execute—Act by maneuvering the car to avoid conflicts. What are 3 […]
What percentage of water is reabsorbed by the kidneys?
What percentage of water is reabsorbed by the kidneys? 12.3 Tubule Reabsorption/Secretion Compound Filtered Load Percent Reabsorbed Water 180 L/day 99% Glucose 180 g/day 100% Lipids 1080 g/day 99.99% Sodium 630 g/day 99.5% Which part of the digestive system absorbs the most nutrients? The small intestine absorbs most of the nutrients in your food, and […]
What would happen if there was no convection current in the mantle?
What would happen if there was no convection current in the mantle? If Earth had no convective currents, that would mean the inner Earth has solidified, therefore, we would not have plate tectonics. Our Earth’s crust is made up of plates of varying sizes that move very slowly around the planet over time, this theory […]
What is the relationship between buoyancy and volume?
What is the relationship between buoyancy and volume? Compressible objects As a floating object rises or falls, the forces external to it change and, as all objects are compressible to some extent or another, so does the object’s volume. Buoyancy depends on volume and so an object’s buoyancy reduces if it is compressed and increases […]
When would you use cumulative frequency?
When would you use cumulative frequency? Cumulative frequency is used to determine the number of observations that lie above (or below) a particular value in a data set. The last value will always be equal to the total for all observations, since all frequencies will already have been added to the previous total. What is […]