Category: Physics

What is the Trypanophobia? Trypanophobia is defined as extreme fear of medical procedures involving injections or needles. What is Ommetaphobia? Ommetaphobia describes an extreme fear of eyes. Like other phobias, this type of fear can be strong enough to interfere with your daily routine and social activities, while also being considered irrational because of the […]

What is the equation for the change in momentum? The impulse experienced by the object equals the change in momentum of the object. In equation form, F • t = m • Δ v. What happens in an inelastic collision? An inelastic collision is a collision in which there is a loss of kinetic energy. […]

What is the difference between Adam Smith and Karl Marx? Their main difference is that Smith largely looks backward, sees that things are better than they were, and offers various reforms to improve society. Marx looks largely to the future, thinks that the future could be so much better than the present, and argues for […]

How many earthquakes does Alaska have? Alaska has 11% of the world’s earthquakes, and 3 of the six largest in recorded history were located there. Since 1900, Alaska has had one magnitude 7 or 8 earthquakes per year, 45 earthquakes of magnitude 6 or 7, and 10,000 quakes overall annually. Why does Alaska get so […]

What kind of heat transfer happens when the sun is hitting your body? Review for Heat Transfer Quiz A B Convection The transfer of heat by the movement of a fluid. Feeling the sun’s heat on your face is an example of which kind of heat transfer? Radiation What kind of heat transfer occurs when […]

Is net force always 0? When an object moves with constant velocity, the total net force on the object is always zero. If you have applied force, there’s another force (or, many forces) like friction to counterbalance it. Is normal force equal to mg? Normal force is equal to mg only when the object is […]

How do you combine two vectors? The concatenation of vectors can be done by using combination function c. For example, if we have three vectors x, y, z then the concatenation of these vectors can be done as c(x,y,z). Also, we can concatenate different types of vectors at the same time using the same same […]

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What type of energy is wasted? Heat energy is the most easily dissipated form of energy. Light energy is frequently energy seen in combustion, and is a type of wave motion. Sound energy is another type of wave motion caused by the vibration of molecules in the air. Like heat energy, sound is a type […]

What is face Centred unit cell? In the face-centered unit cell, there are also atoms or ions in the center of each of the six faces of the unit cell. In the body-centered unit cell, there is one atom or ion in the center of the unit cell in addition to the corner atoms or […]