Category: Physics

What is the main difference between a radio wave and light? Both radio waves and light are electromagnetic waves; their main difference is their frequency. Radio waves are created by the acceleration of electrons in a radio antenna, and light waves are created by the oscillations of the electrons within atoms. How do you brighten […]

What are symptoms of timing being off? What causes ignition timing to be off? When any changes are made to the engine of a car, the ignition timing is adjusted accordingly. If not, you could experience several problems with your engine with improper ignition timing like knocking, hard to start, increase fuel usage, overheating, and […]

What does increase in demand mean? An increase in demand means that consumers plan to purchase more of the good at each possible price. c. A decrease in demand is depicted as a leftward shift of the demand curve. d. A decrease in demand means that consumers plan to purchase less of the good at […]

How much does a hovercraft cost? Rescue hovercraft range from $28,000 to $79,000 and commercial hovercraft from $36,000 to $90,000. Trailers range from $3,000 to $12,600. (Prices in US Dollars.) HOW IS A HOVERCRAFT DIFFERENT FROM AN AIRBOAT? Why did they stop using hovercrafts? The Channel’s hovercraft service had its peak year in 198 when […]

How can standing waves be prevented? The solution to stopping a standing wave is cutting the offending frequency of the related instrument….Standing waves can be caused when waves bounce between; Opposite walls. Four sides of the room. All six sides of the room (given most rooms have four walls, a floor, and a ceiling!) Why […]

What is the magnetic field in the center of the solenoid? For the first part, since the solenoid is long we can approximate the magnetic field inside to be uniform and is given by Bz=μ0NI, so we can say that the magnetic field at the center is also μ0NI. What is the ferrite core used […]

What happens if a hot air balloon lands in your yard? As a general rule, pilot or crew chef are supposed to ask the property owner if it is OK to land on private property and take the balloon down. If they did not ask, they are basically trespassing. Trespassing pilot and crew may harm […]

Why are telescopes limited? The resolution of an optical imaging system – a microscope, telescope, or camera – can be limited by factors such as imperfections in the lenses or misalignment. Is the human eye diffraction limited? The human eye is close to being fully diffraction-limited, at least for photopic (cone-based) vision at the center […]

Do airplanes have constant velocity? Since there is no net external force on the aircraft, the aircraft will maintain a constant airspeed as described by Newton’s First Law of Motion. However, if the forces become unbalanced, the aircraft will move in the direction of the greater force. How is an aircraft held into a turn? […]

What would happen if the rabbit population suddenly doubled? In the stable food chain shown, what would you expect to happen initially if you were to suddenly double the population of rabbits? The populations of the other three species would also increase. The populations of the other three species would decrease. The grass population and […]