Category: Physics

What are three types of models? Contemporary scientific practice employs at least three major categories of models: concrete models, mathematical models, and computational models. What is simple model? A Simple Model exists to make the skill set required to build financial models more accessible. The intention is to create simple material and facilitate the learning […]

What is the very first step in the proton-proton cycle? The first step in this process is the collision of two protons where proximity permits the strong nuclear force to bind them together. The resulting combination is not stable, and one of the protons will decay to become a neutron, and this forms a stable […]

Is it safe to swim to a sandbar? The trough can be a gentle swim, but the sandbars around it can also shift to create the rip currents — channeled rushes of water pulling away from shore — that have caused so many drownings and near drownings over the years. “You are always going to […]

How do you determine instantaneous speed? Instantaneous speed is found by taking the absolute value of instantaneous velocity, and it is always positive. Average speed is total distance traveled divided by elapsed time. The slope of a position-versus-time graph at a specific time gives instantaneous velocity at that time. What does instantaneous rest mean? It […]

What is the relationship between the earth and the moon? The Moon is smaller than the Earth and orbits around the Earth in 27.3 days as the Earth revolves around the Sun. The Moon is held in orbit around the Earth by the force of gravity. In turn the Earth and all the other planets […]

What are the five changes of state? Common changes of state include melting, freezing, sublimation, deposition, condensation, and vaporization. What are the 22 states of matter? What are the 22 states of matter? Solid. Liquid. Gas. Plasma. Bose-Einstein Condensate. Excitonium. Degenerate Matter. Photonic Matter. What are the 7 types of matter? The seven states of […]

What happens when a cell with 1% salt gets put into a 10% salt solution? It is a type of passive transport. A cell has a 1% salt concentration. It is placed into a solution containing a 10% salt concentration. Water will move out of the cell, causing it to shrink. What are examples of […]

Which is best analog or digital? Digital recordings can have a greater signal-to-noise ratio depending on the bit depth of the recording. This jump in elevation can create a digital noise. The smooth analog signal matches the recorded sound wave better than the steps of a digital recording. What are the three components of a […]

Is a woodchuck and a beaver the same thing? The woodchuck and the beaver belong to the same rodent species, and are closely related to the squirrel family. Though they exhibit certain resemblance like the ever-growing teeth, gnawing habits, and ability to regulate temperature, there are a lot of differences in their habitats, breeding and […]

How do you do a well yield test? Determine the volume in gallons per foot of well bore based on the well diameter (Table 1). Multiply the gallons per foot of well bore times the footage of water level rebound during the recovery. Then divide the result by the time of this recovery to a […]