Category: Physics

Why are digital signals more reliable? Digital signals are a more reliable form of transmitting information because an error in the amplitude or frequency value would have to be very large in order to cause a jump to a different value. Signals are composed of infinite possible values. Sound signals can vary smoothly in volume […]

How can the amount of scatter radiation reaching the IR be controlled? The radiographer must act to minimize the amount of scatter radiation reaching the IR. Beam-restricting devices and radiographic grids are tools the radiographer can use to limit the amount of scatter radiation that affects the radiographic image and exposure to the patient or […]

What will increase the effects of alcohol and drugs when boating? Sun, wind, noise, vibration, and motion are all considered “stressors” common to the boating environment. They intensify the effects of alcohol, drugs, and some medications by causing fatigue, which greatly reduces a boat operator’s coordination, judgment, and reaction time. Do boats get you drunk […]

How do you maximize generator output? Locate the throttle. This is usually on the side of a generator that does not have a voltage dial or at the top of one that does. It usually has “RPM” imprinted on it. By increasing the rpm, you will increase the power output. What is 50% load on […]

What are the two major types of health insurance? The two main types of health insurance are private and public. Public health insurance, like Medicare, is provided through the government, while private health insurance include plans you get through an employer or the marketplace. You can further categorize health insurance by the plan type, like […]

What is the to the power of symbol? Exponent Operator (^) Used to raise a number to the power of an exponent. What is a power of a power law? A power law is a relationship in which a relative change in one quantity gives rise to a proportional relative change in the other quantity, […]

What is meant by kg m3? The kilogram per cubic metre (symbol: kg·m−3, or kg/m3) is an SI derived unit of density, defined by mass in kilograms divided by volume in cubic metres. How many kg are in m3? Table of conversion kg to m3 and m3 to kg for water Kilograms to cubic meters […]

Why do giant Aroid plant has such big leaves? Giant taro has the largest un-split leaf in the world, reaching two metres long. The giant leaves are ideally adapted to absorbing the small amount of light that reaches the rainforest floor under the dense tree canopy. How can plants survive on the forest floor even […]

What is the format to write an activity? Some write-ups (especially when published in certain journals or newsletters or books) include an introductory narrative about the activity, often citing relevant literature related to what it tries to accomplish or giving more details about the goals of the activity. How do you prepare an activity? Activity/Lesson […]

What factors affect ionization energy? 3 Factors Affecting Ionisation Energy Size of the positive nuclear charge. As the nuclear charge increases, its attraction for the outermost electron increases and more energy is required to remove an electron. Size of atom (distance of outermost electron from the nucleus) Screening (shielding) effect of inner shell electrons. What […]