What is the difference between membrane potential and resting potential? For a cell’s membrane potential, the reference point is the outside of the cell. Because there is a potential difference across the cell membrane, the membrane is said to be polarized. If the membrane potential becomes more positive than it is at the resting potential, […]
What are the 5 main functions of the nervous system?
What are the 5 main functions of the nervous system? Central Nervous System – what does the brain and spinal cord do? maintaining homeostasis. interpreting sensory information. creating motor responses (movement) learning. thinking. talking. What are the main functions of the peripheral nervous system? The PNS has three basic functions: (1) conveying motor commands to […]
Can you have a coefficient of restitution greater than 1?
Can you have a coefficient of restitution greater than 1? It normally ranges from 0 to 1 where 1 would be a perfectly elastic collision. It can be more than 1 if there is an energy gain during the collision from a chemical reaction, a reduction in rotational energy, or another internal energy decrease that […]
What is center of projection?
What is center of projection? The center of projection is the origin or source of the stream of projecting rays. Depending on the distance between the center of projection and the image plane, the distinction should be made between central (conical) projections and parallel (cylindrical) projections. What is foreshortening factor? 3) The ratio of projected […]
Why is a normal eye not able to see clearly the objects placed closer than 25cm?
Why is a normal eye not able to see clearly the objects placed closer than 25cm? Explanation. A normal eye cannot see clearly the objects that are placed closer than 25cm because the power of accommodation of the eye is 25cm which is exhausted. When the maximum accommodation of the eye is reached, the ciliary […]
What are the 3 factors that sustain life on Earth?
What are the 3 factors that sustain life on Earth? What are the 3 interconnected factors that sustain life on earth? Solar energy, nutrient cycles, and gravity. What are the features that make life possible on Earth? What makes the Earth habitable? It is the right distance from the Sun, it is protected from harmful […]
Why is sediment transport important?
Why is sediment transport important? Sediment transport is applied to solve many environmental, geotechnical, and geological problems. Measuring or quantifying sediment transport or erosion is therefore important for coastal engineering. Movement of sediment is important in providing habitat for fish and other organisms in rivers. What are two ways water transports sediment? How do rivers […]
What force causes current to flow?
What force causes current to flow? Electric current is flow of electrons in a conductor. The force required to make current flow through a conductor is called voltage and potential is the other term of voltage. For example, the first element has more positive charges, so it has higher potential. What’s the minimum voltage at […]
Is it bad to look at IR light?
Is it bad to look at IR light? All infrared, visible or ultraviolet electromagnetic radiation can cause injury to the eye in sufficient concentrations, but this is very rare. Infrared lamps and incandescent bulbs are not powerful enough to cause such harm. But it’s best if you don’t stare directly at them for too long. […]
Are any goods perfectly elastic?
Are any goods perfectly elastic? If demand is perfectly elastic, it means that at a certain price demand is infinite (A good with a very high elasticity of demand). In other words, if a firm increased the price by 1%, it would see all its demand evaporate. Is coffee elastic or inelastic? Availability of Substitutes […]