Category: Physics

What is meant by the absolute refractory period? : the period immediately following the firing of a nerve fiber when it cannot be stimulated no matter how great a stimulus is applied. — called also absolute refractory phase. — compare relative refractory period. How long is the absolute refractory period? about 0.4 ms Why is […]

Why is the focal length of a concave lens negative? The power of the lens is the reciprocal of the focal length. A concave lens is a diverging lens, so it will always have a negative focal length. Therefore, the power of a concave lens is also negative. Was this answer helpful? Is V positive […]

What are the 3 main types of wind energy? There are three major types of wind energy. Utility-Scale Wind. This defines wind turbines that range in size from 100 kilowatts to several megawatts, where electricity is supplied to the power grid and distributed to the end user by electric utilities or power operators. Offshore Wind. […]

Does alkaline water make you poop? Finally, alkaline water contains magnesium, calcium, and other minerals that act as a mild laxative to help with digestion. When the digestive system is functioning properly, it can better digest food, and increase metabolism. Does alkaline water make you pee more? As alluring as it sounds, the answer is […]

Should you leave your manual car in gear when parked? Do not leave the car in neutral when parked However, in a manual transmission car, putting in first gear (or reverse when then the car is facing downhill) is just like putting the car in “park.” To prevent this, leave the car in the first […]

What is n equal to in physics? The newton (symbol: N) is the SI unit of force. 1 Newton is equal to the amount of force required to accelerate an object at a rate of 1 metre per second, every second. One newton is the force needed to accelerate one kilogram of mass at the […]

What are 5 examples of energy transfer? Energy transfers A swinging pirate ship ride at a theme park. Kinetic energy is transferred into gravitational potential energy. A boat being accelerated by the force of the engine. The boat pushes through the water as chemical energy is transferred into kinetic energy. Bringing water to the boil […]

How important is the energy flow of an ecosystem? The energy flow in the ecosystem is important to maintain an ecological balance. The producers synthesise food by the process of photosynthesis. The remaining energy is utilised by the plants in their growth and development. This stored energy is transferred to the primary consumers when they […]

What is the concentration of the sulfuric acid solution? Dilutions to Make a 1 Molar Solution Concentrated Reagents Density Molarity (M) Perchloric acid 70% 1.67 11.6 Orthophosphoric acid 85% 1.7 15.2 Sodium hydroxide 47% 1.5 17.6 Sulfuric acid 98% 1.84 18.4 How do you determine the strength of Sulphuric acid? Solution Moles of NaOH = […]

How do I convert scientific notation to standard form? To change a number from scientific notation to standard form, move the decimal point to the left (if the exponent of ten is a negative number), or to the right (if the exponent is positive). You should move the point as many times as the exponent […]