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 type of fixed pitch propeller produces more RPM?
What type of fixed pitch propeller produces more RPM? The cruise propeller has a higher pitch, therefore more drag. More drag results in lower RPM and less horsepower capability, which decreases performance during takeoffs and climbs, but increases efficiency during cruising flight. What is the difference between a fixed and variable pitch propeller? For a […]
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 […]
Which of the following is the best definition of a physical change answers com?
Which of the following is the best definition of a physical change answers com? A physical change is when a substance undergoes a process whereby its physical features change but its chemical features stay the same. By definition, any change in the state of matter is a physical change. Which of the following is the […]
Why is oxygen not suitable for a light bulb?
Why is oxygen not suitable for a light bulb? A light bulb full of oxygen would not work well, as the bulb’s tungsten filament, if it ignited at all, would burn very brightly and short out quickly. Oxygen is flammable, a decided fire hazard that would ignite the bulb’s insides. Why are light bulbs filled […]
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, […]
What does the Highway Code say about reversing?
What type of weather is high pressure associated with?
What type of weather is high pressure associated with? dry weather What is the best pressure to catch fish? The best barometric pressure for fishing is between 29.70 and 30.40 inches of Mercury (1005.757 to 1029.462 millibar). This is a medium pressure and if you want to try out some new technique or do any […]
What causes the pail to move in circular motion?
What causes the pail to move in circular motion? As a bucket of water is tied to a string and spun in a circle, the tension force acting upon the bucket provides the centripetal force required for circular motion. As the moon orbits the Earth, the force of gravity acting upon the moon provides the […]