Category: Physics

What most likely caused the tilting of the Grand Canyon? What most likely cause the tilting? Scientists believe that the boundary stratum between the Cretaceous and Paleocene periods were caused by an asteroid. Which organisms were most likely to survive the Cretaceous extinction? Birds: Birds are the only dinosaurs to survive the mass extinction event […]

Why standardized testing is bad? Standardized tests don’t provide any feedback on how to perform better. The results aren’t even given back to the teachers and students until months later, and there are no instructions provided by test companies on how to improve these test scores. 4. Standardized tests don’t value creativity. Is IAR testing […]

Which is the limiting reactant in the reaction? The limiting reactant (or limiting reagent) is the reactant that gets consumed first in a chemical reaction and therefore limits how much product can be formed. How do you find theoretical yield in grams? Theoretical Yield Quick Review Find the mole ratio between the reactant and the […]

What do liquid objects have in common? Liquids have the following characteristics: No definite shape (takes the shape of its container). Has definite volume. Particles are free to move over each other, but are still attracted to each other. Why doesn’t mass alone determine whether an object will float or sink? Density is the only […]

How many car lengths should you leave? Figure one car length for every ten miles an hour,” Barndt said. “So if you’re doing 55 miles an hour you should have six car lengths between you so that if something happens to the car in front of you, you have time to stop or react.” The […]

What is the 4 year 1 day rule for US citizenship? The 4 year 1 day rule applies to permanent lawful residents who were required to be in the U.S. for a continuous period of 5 years but who broke the continuity of their residence. The period of 4 year 1 day applies before you […]

Do Teslas only have one pedal? Tesla cars are built with pedal sensors that observe and record the driving behaviors of a person. So the program may learn to rely on regen braking more once more drivers get used to single-pedal driving. It does take a while to get used to using only one pedal, […]

What are the causes for the change of seasons on the earth? Earth has seasons because its axis is tilted. Earth’s axis is always pointed in the same direction, so different parts of Earth get the Sun’s direct rays throughout the year. What is Leap Year very short answer? In an ordinary year, if you […]

How do we know carbon dioxide is a greenhouse gas? This ability to absorb and re-emit infrared energy is what makes CO2 an effective heat-trapping greenhouse gas. Not all gas molecules are able to absorb IR radiation. For example, nitrogen (N2) and oxygen (O2), which make up more than 90% of Earth’s atmosphere, do not […]

What is the meaning of external development? External growth (also known as inorganic growth) refers to growth of a company that results from using external resources and capabilities rather than from internal business activities. The main advantage of external growth over internal growth is that the former provides a faster way to expand the business. […]