Category: Physics

Do things float better in hot or cold water? Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density. Hot water is less dense and will float on room-temperature water. Cold water is more dense and will sink in room-temperature water. […]

What does exalting mean? transitive verb. 1 : to raise in rank, power, or character. 2 : to elevate by praise or in estimation : glorify. 3 obsolete : elate. What does exult mean in the Bible? to rejoice What is the best definition for the word exultation? English Language Learners Definition of exultation : […]

What is the angle of refraction if the angle of incidence is 30 degree? The angle of refraction is 19.27°. Explanation: This can be determined using Snell’s law which states: Refractive index = sin i/sin r ( where i is the angle of incidence and r is the angle of refraction). What does Snell’s law […]

What grade is a 67%? Percent Letter Grade 70 – 72 C- 67 – 69 D+ 63 – 66 D 60 – 62 D- Is 70 an A or B? Letter Grade Percentage Range Mid-Range A 80% to 89% 85% B+ 75% to 79% 77.5% B 70% to 74% 72.5% C+ 65% to 69% 67.5% […]

Is a 9 pound bowling ball too light? A bowling ball should weigh 10 percent of your body weight (up to 16 pounds), which means you really shouldn’t be grabbing, say, an 8-pound ball if you weigh 150 pounds. You want some weight to the ball, but it shouldn’t be so heavy that it’s uncomfortable. […]

What are the benefits of delayed gratification? Why is delayed gratification important? The ability to hold out now for a better reward later is an essential life skill. Delayed gratification allows you to do things like forgo large purchases to save for a vacation, skip dessert to lose weight or take a job you don’t […]

What was the world population in 1930? 2 billion What would cause an increase in the population? According to Wikipedia, “Overpopulation occurs when a species’ population exceeds the carrying capacity of its ecological niche. It can result from an increase in births (fertility rate), a decline in the mortality rate, an increase in immigration, or […]

What are the three terms of categorical syllogism? A categorical syllogism infers a conclusion from two premises. It is defined by the following four attributes. Each of the three propositions is an A, E, I, or O proposition. The subject of the conclusion (called the minor term) also occurs in one of the premises… What […]

What is metaphysics in simple terms? Metaphysics is a major branch of philosophy. It concerns existence and the nature of things that exist. The metaphysical idea that reality exists independently of one’s mind and yet can be known is called realism. The metaphysical idea that no mind-independent reality exists or can be known is idealism. […]

Can a duck kill you? Ducks, unlike their close relative swans, which are bigger and have a number of documented attacks on humans, appear to be relatively harmless. Resnick drowned in an extraordinarily rare case of a duck causing a person’s death. What does it mean when a duck comes in your yard and stays? […]