Category: Physics

Is tea a colloid suspension or solution? A mixture with particles that can be easily seen and separated by being filtered or settling. If you try to put too much sugar into a cup of tea, it will not fully dissolve and will leave some sugar on the bottom of the cup, making the tea […]

Why gravitation is always attractive? In the case of gravity, mediated by spin 2 particles, charge is mass, which is always positive. Thus, q1q2 is always greater than zero, and gravity is always attractive. For spin 0 force mediators, however, there is no restriction on the charges and you can very well have repulsive forces. […]

What is the difference between subduction zones and hot spots? Subduction zones are areas in which oceanic plates are overridden by continental plates, forcing the heavier oceanic crust deep enough to be melted and recycled as second generation magma. Hot spots provide information about the rates and directions of movement of tectonic plates over geologic […]

What is the black thing on a guitar called? The Soundhole: Most acoustic guitars have a sound hole in the middle of the guitar, though some guitars may have the sound hole in a different spot or not have one at all. The Bridge: The black part of the guitar on the other end of […]

What is the ultimate original source of energy? The sun Is soil considered a living thing? The job of the organisms is to keep the soil healthy. carbon and mineral matter in the soil, and painting with soil. Soil is a living thing – it is very slowly moving, changing and growing all the time. […]

How do you find distance rate and time problems? The formula for distance problems is: distance = rate × time or d = r × t. Things to watch out for: Make sure that you change the units when necessary. For example, if the rate is given in miles per hour and the time is […]

What is currently the most popular trait theory of personality? Trait theorists attempt to explain our personality by identifying our stable characteristics and ways of behaving. The Five Factor Model is the most widely accepted trait theory today. The five factors are openness, conscientiousness, extroversion, agreeableness, and neuroticism. These traits occur along a continuum. Is […]

What evidence does the fossil record provide? Fossils document the existence of now-extinct species, showing that different organisms have lived on Earth during different periods of the planet’s history. They can also help scientists reconstruct the evolutionary histories of present-day species. Why are fossils so hard to find? Fossils are rare because their formation and […]

What should you squawk if you lose radio communications? 1) Squawk 7600 (Regardless Of Where You Plan To Land) By squawking 7600 (lost communications squawk code), ATC will know you’ve had a communications failure. What is two-way radio communication in aviation? Two-way radios are used by groups of geographically separated people who need to keep […]

What to do if your neighbors are loud? What you can do about your loud neighbors. Document the offenses. There are a variety of ways you can do this. Give a courtesy knock. A courtesy knock may help. Pay your neighbor a visit. And if a friendly knock doesn’t work, you can pay them a […]