Category: Physics

What is the major imbalance in the carbon cycle? Burning Fossil Fuels Carbon stored underground in coal, oil, and natural gas deposits for millions of years is being released into the atmosphere very quickly, creating a major imbalance in the cycle. How can we improve the carbon cycle? We perturb the carbon cycle by burning […]

What is the importance of reference point? A reference point is important in determining motion because in order to say that something is moving, you need to have something stationary to compare it to. What is the point of reference in a graph? The point on the graph where the x and y axis meet […]

Can ice cream freeze after melting? You can also be putting your health at risk if you refreeze melted ice cream. It is only safe to refreeze ice cream if it is slightly melted and has been kept cold. If it melted outside the freezer, refreezing it and eating it could be unsafe. When ice […]

What are the factors that influence the diffusion of materials across the cell membrane? Many factors can affect the rate of diffusion, including, but not limited to, concentration gradient, size of the particles that are diffusing, and temperature of the system. In living systems, diffusion of substances in and out of cells is mediated by […]

How do you determine the magnitude of a vector? The magnitude of a vector →PQ is the distance between the initial point P and the end point Q . In symbols the magnitude of →PQ is written as | →PQ | . If the coordinates of the initial point and the end point of a […]

What are the disadvantages of digital communication? Disadvantage of Digital Signals : Processor speed is limited. Develop quantization and round-off errors. Systems and processing is more complex. A higher bandwidth is required for data communication in comparison to analog transmission of an equivalent information. Is WiFi analog or digital? So, the answer will be both. […]

Will it sink or float? Density is the only thing affecting whether something floats or sinks. If an object has a higher density than the fluid it is in (fluid can mean liquid or gas), it will sink. If it has a lower density, it will float. Density of an object is dependent on an […]

What is the formula of time speed distance? You can use the equivalent formula d = rt which means distance equals rate times time. To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time. To solve for time use the formula for time, […]

What is the correct order of strategic management process activities? The five stages of the process are goal-setting, analysis, strategy formation, strategy implementation and strategy monitoring. What are the four activities of the strategic management process? The four phases of strategic management are formulation, implementation, evaluation and modification. What are the four basic elements of […]

How can superconductivity be achieved? Artwork: Superconductivity happens when electrons work together in Cooper pairs. But at low temperatures, when the electrons join together in pairs, they can move more freely without being scattered in the same way. What is the best superconductor? Hydrogen sulphide Why is silver not a superconductor? The reason is that […]