Category: Physics

What happens to air pressure as altitude decreases quizlet? As air pressure decreases altitude increases. As air pressure decreases so does density. What happens to air pressure and density as altitude increases? Altitude and Density The density of air decreases with height. There are two reasons: at higher altitudes, there is less air pushing down […]

What was the most significant event in 1999 to impact the environment? It is part of the Global Environment Outlook project. The Dioxin Affair, primarily a political crisis, occurred in Belgium during the spring of 1999 due to contamination of feedstock with polychlorinated biphenyls (PCBs). What were some of the main events that led to […]

What is the net external force on an object in free fall? The net external force is just the weight of the object (F = W). Substituting into the second law equation gives: a = W / m = m * g / m = g . The acceleration (change of velocity) of the object […]

What is the difference between tables charts and graphs? Same, but Different Charts present information in the form of graphs, diagrams or tables. Graphs show the mathematical relationship between sets of data. Graphs are one type of chart, but not the only type of chart; in other words, all graphs are charts, but not all […]

How do you decline a kiss? Let the person down easy. Look for a way to respectfully and tactfully decline. Try saying, “I’m sorry, but I’m not romantically interested in you.” Say, “I love our friendship, but I’m not ready to take it to the next level.” Say, “Thank you, but no thank you,” or […]

Is Si a English word? Meaning of SI in English. abbreviation for Système International: the international system of units used for scientific measurements, with standard base units such as the meter and the kilogram: The SI unit of electric current is the ampere. What can Si stand for? Système international What is the medical term […]

How liquid is measured? noun. the system of units of capacity ordinarily used in measuring liquid commodities, as milk or oil. English system: 4 gills = 1 pint; 2 pints = 1 quart; 4 quarts = 1 gallon. Metric system: 1,000 milliliters = 1 liter; 1,000 liters = 1 kiloliter (= 1 cubic meter). How […]

Why are objects Coloured? Objects appear different colours because they absorb some colours (wavelengths) and reflected or transmit other colours. The colours we see are the wavelengths that are reflected or transmitted. White objects appear white because they reflect all colours. Black objects absorb all colours so no light is reflected. Why is red the […]

Which two organisms are the most closely related? Which pair of organisms are most closely related? Organisms 2 and 3 are most closely related because they have the same family name. Organism 2 is a lion, organism 3 is a common housecat, and organism 1 is a human. Which best describes the two types of […]

What is the most common cause of a front wheel skid? Most front-wheel skids are caused by driving too fast for conditions. Other causes are lack of tread on the front tires, and cargo loaded so not enough weight is on the front axle. In a front-wheel skid, the front end tends to go in […]