What is increase: Definition and 865 Discussions

In Demography, the rate of natural increase (RNI), also known as natural population change, is defined as the birth rate minus the death rate of a particular population, over a particular time period. It is typically expressed either as a number per 1,000 individuals in the population or as a percentage. RNI can be either positive or negative. It contrasts to total population change by ignoring net migration.
This RNI gives demographers an insight into how a region's population is evolving, and these analyses can inform government attempts to shape RNI.

View More On Wikipedia.org
Recent contents Top users
  1. G

    I Glass -- how to increase the surface area

    I need to increase the surface area of the glass which will be used in a solar still with the intention of keeping the glass as cool as possible. My first thought was bubble wrap because it's transparent and I thought it would not interfere with the light but then I remembered it is a good...
  2. M

    MHB Percent Increase what would be the percent increase in the area of the plot?

    If the length and width of a rectangle garden plot were each increased by 20 percent, what would be the percent increase in the area of the plot? My Work: Here I am thinking geometry mixed with algebra. The area of a rectangle is found by using A = bh. A = (0.20)(0.20) Correct set up?
  3. M

    MHB Original Price Percent Increase

    Increasing the original price of an article by 15 percent and then increasing the new price by 15 percent is equivalent to increasing the original price by what percent? The only thing I can do here is let x be the original price percent increase. Honestly, this percent question is ridiculously...
  4. T

    Job Skills Joining organizations in college to increase networking

    I am doing MS in Electrical Engineering. Would joining student organizations help build my career? People do advice me to join few organization but I have zero or less experience (i am more of an introvert) being in them. What kind of organizations would you expect me to join? Do they need to...
  5. T

    B Brown Dwarf Mass Gain: Does Radius Increase?

    Why wouldn't a brown dwarf grow in radius if it started to gain mass?
  6. SherLOCKed

    Increase in the frequency of sound in a glass of water?

    Suppose you have a glass of water, and you beat a spoon on the bottom layer of glass through the mouth of glass, repeated beatings in a regular fashion will cause in increased frequency of sound produced due to the spoon beating?What causes such increase in frequency?
  7. S

    Is there a way to increase the efficiency of spdc?

    Can a setup be made such that the efficiency of spontaneous parametric downconversion approaches 100%? From what I have been told, this would be possible using classical input fields matching both the pump and output frequencies, but I am unsure if one could simply use laser of both frequencies...
  8. P

    MHB How Many Times Do I Have To Increase by 3%?

    I want to know how many time I have to increase 30 by 3% before it is greater or equal to 500. I think this is the correct formula: 30 * 1.03^x >= 500 What steps do I have to take to solve it?
  9. F

    Increase in internal energy due to polarization of a dielectric

    I have a plate capacitor with a given charge. It is then dipped in a dielectric fluid and I must determine which height the fluid reaches(all the necessary parameters are given). I can solve this problem if I make the following assumption: the polarization of the dielectric does not( or...
  10. S

    Explaining Temperature Increase with Antenna and Tissue

    Hi; Let's imagine that I have an antenna and a biological tissue. The antenna emits the frequency of 1e7 Hz and I have a temperature increase x. When the antenna emits the frequency of 3e7 and 6e7 Hz the temperature increase is the same. How can I explain?
  11. HastiM

    I How to increase the energy of an electron

    Hello, in class we learned about the hydrogen atom and in particular the quantum states describing the electron in hydrogen atom (we denoted them as usual by 1s, 2s, 2p etc.). Whenever we talked about state transitions of the electron, like transition from 1s to 2p state, we imagined an...
  12. C

    I Does strong force increase or decrease with aligned spins?

    The deuterium exists only with the proton and neutron of aligned spin, which suggests that the residual strong force is greated with aligned spins, i.e. the binding energy is greater if the spins are aligned. On the other hand the mass of ##\Delta^{+}## is greater than the mass of proton ##p##...
  13. R

    MHB Problems with Percentage: From 300 to 3,850 - what percentage increase is that?

    Hi all. Hopefully this is in the right place. I tried using an online percentage calculator, but it's not giving me the correct results, and was hoping someone here could help me. From 300 to 3,850 - what percentage increase is that? -and- From 300 to 5,000 - what percentage increase is...
  14. Wrichik Basu

    A significant increase in lightning during rains

    This year in Kolkata, we are facing severe trouble from lightning. In the previous years when it rained, lightning was much less. This time, even before it starts raining, lightning starts, and it reaches the ground, taking lives. As soon as the clouds start appearing, lightning bolts reach out...
  15. NewEnglander

    Compound lever: Best fulcrum location to increase mechanical advantage

    Good morning all, Ever since I encountered biomass brick presses I've had a renewed fascination with the use of compound levers to increase mechanical advantage. So my question is about the fulcrum location and its impact on MA. Let's say we have a simple class 1 lever A and we wish to...
  16. Gabriele99

    Will water flow ever stop if we increase resistance?

    Complete question: Will flow ever reverse or stop if we increase resistance in this pipe scenario? There are 2 comunicating vessels. The highest vessel is coninuosly alimented with new water. Water in excess flows down on the sides. Water will try to reach the same height in both vessels, so...
  17. Nabin kalauni

    B What does coefficient of increase of physical quantity mean?

    I am extremely confused by the use of the term coefficient of increase of something. For example , if it is stated that the index of refraction varies linearly with a coefficient of 2.5×10^-5, how is this coefficient defined? Is it simply the slope of the line plotted with index of refraction on...
  18. F

    I Why doesn't a photon's mass increase to infinity?

    Pretty self explanatory really. If a photon has a mass (1.67 * 10^-27 kg), and it travels at the speed of light, why does it's mass not increase to infinity?
  19. H

    Rate of pressure increase of contained air being heated

    Wondering if I have a sealed steel tank filled with air and the air temp is 0C and the air pressure in the tank is 0, then heat is applied to the tank - what will the pressure be 100C? At 200C? At 300C? I assume the rate of expansion is constant, but correct me if this is wrong. Thanks.
  20. T

    MHB Calculating Mark-up: Understanding % Increase in Price for Retailers

    If a product costs a retailer \$2.20 and it is sold at \$3.19 what is the % mark-up and how does one arrive at that? thx
  21. E

    Increase in the volume of a sound

    Homework Statement A person turns up the volume on a radio. Which aspects of the motion of a point on the diaphragm must increase? a. maximum displacement only b. average speed only c. both maximum displacement and average speed d. neither maximum displacement nor average speed Homework...
  22. D

    Why does the melting point of aspirin increase

    I used sailcylic acid and acetic anhydride to produce aspirin and preformed recrystalisation to purify the aspirin. I need to evaluate why I have a higher/lower melting point. In this case, the melting point was 143°C whereas the true meling point is 135°C. I thought one of the reasons my...
  23. J

    Does the current increase or decrease through the resistor ?

    Homework Statement Homework EquationsThe Attempt at a Solution This looks to be a simple problem but the answer key has left me wondering whether I am thinking correctly . I get option 1) whereas answer key states option 3) . Since the variable resistance R increases , the resistance...
  24. Ciaran H

    B Where does the increase in mass come from in fission?

    If energy is released during nuclear fission, why is the mass of the products (the two new nuclei and fission neutrons) greater than the mass of the original nuclei? In accordance to E=mc^2, shouldn't the release of energy result in the products having a lesser mass than the original nuclei?
  25. Jucimar

    Can self induction increase power consumption?

    Hi folks, My question relays on the difference of consumption power of a coil when it's on AC and CC regime. A coild is made of copper wire with air core, aplied on it a CC current of 1 amp, a measure was taked and nottice a 5W of power consumption. Then the power supply is changed to and AC...
  26. P

    Force decreased but velocity continues to increase

    Homework Statement An object is moving to the right in a straight line. The net force acting on the object is also directed to the right, but the magnitude of the force is decreasing with time. What happens to the object? The answer states that the object continues to move to the right with...
  27. BillTre

    Science Addresses Recent increase in MLB Home Runs

    The past year and a half have seen an unexplained increase in MLB home runs. Interesting article. Bounciness, weight, and air resistance seem to be involved.
  28. D

    B How to increase wave amplitudes

    In reading about the photoelectric effect I noted that frequency accounts for the energy of the photon which must be high enough to liberate free electrons and the amplitude is the cause of intensity.Now, how can the amplitude be responsible for more than the liberation of more than one photon...
  29. E

    Why does entropy increase when hot water is mixed with cold?

    Why is entropy lost by hot water less than the entropy gained by the cold water?From perspective of energy,why is it better to take water and heat it to a temperature than it is to mix hot water and cold water to get a particular temperature.
  30. N

    MHB Optimizing Process Efficiency for 25% Sales Increase

    I've been stuck on this for hours, can someone pleas Current = 1 Sub p/ 600 Seconds | 1 Sub p/ 10 Minutes | 6 Sub p/ 1 Hour | 60 Subs @ 10 Hours Need = 1 Sub p/ 500 Seconds | 1 Sub p/ 8.33333 Minutes | 7.2 p/ 1 Hour | 72 Subs @ 10 Hours So I figure I need to shave off 100 seconds to meet the...
  31. T

    How many energy requires to increase 1℃ of 1 liter of water using MICROWAVE?

    we planning to heat water directly using microwave for industrial purpose. we need only 33deg Celsius for that I need this.
  32. A

    Why does an iron core increase magnetism?

    Why does an iron core increase magnetism? Apologies if this more advanced than high school. EDIT: Disregard, found article on magnetic reluctance.
  33. MeneMestre

    Does entropy increase with improbability?

    Well, maybe that's a simple question, but it has been pissing me off for some time ... Does entropy increase with improbability?
  34. Ranku

    I Length Contraction & Mass Increase in GR | General Relativity

    In special relativity, an object moving at higher speed experiences time dilation, length contraction, and mass increase, compared to an object moving at slower speed. In general relativity, for an object in stronger gravitational field (i.e., with higher acceleration due to gravity), time runs...
  35. Altair Tans

    B Increase in PE due to increased mass

    Suppose a body is held stationary at a height h above earth, having some PE Now if the same body is in orbit around Earth at same height, owing to its velocity its mass increases causing the PE at that height to be more than what it was when the body was stationary. Where did the extra energy...
  36. G

    B Spontaneous increase in energy level

    i know there is a certain probability for an electron to fall to a lower energy level,without an exciting event,like a collision. Is the reverse also true I.e that a electron could jump to a higher level,without absorbing any extraneous energy..if so are the lifetimes in the new state the same...
  37. C

    Increase in kinetic energy in current carrying conductor

    Homework Statement If I have two current carrying conductor carrying current is same direction, they move towards each other so kinetiisc energy increases. So which force does work here? Homework EquationsThe Attempt at a Solution I know magnetic force can't do work, is work done by some...
  38. J

    Cooler objects able to increase the temperature of warmer objects?

    Not sure this should go here (you guys need a thermodynamics section). But there is quite the debate going on about cooler objects being able to increase the temperature of warmer objects here: https://wattsupwiththat.com/2017/11/24/can-a-cold-object-warm-a-hot-object/comment-page-1 They are...
  39. P

    Increase in rising air bubble's terminal velocity

    Hi! As we know air bubble in the water rises due to buoyancy and quickly reaches its terminal velocity. What is more, as bubble rises the pressure decreases, consequently the volume of the bubble increases resulting in buoyancy becoming larger. So the terminal velocity doesn't remain constant...
  40. E

    How to increase 5GHz wireless range for RT-AC68U

    Hi, I'm new to the forum and i am encountering a problem with my wifi router I am using RT-AC68U in a house that farthest place to the router is about 15 meter away but with 3 walls between it and my cellphone. I am getting weak signal and sometimes it disconnects from 5GHz band but 2.4GHz is...
  41. Matt James

    Thermodynamics: Calculating Pressure Increase From Work

    Homework Statement Estimate the pressure increase required to impart 1 J of mechanical work in reversibly compressing 1 mol of silver at room temperature. What pressure rise would be required to impart 1 J of work to 1 mol of alumina at room temperature? For alumina take the molar volume to be...
  42. M

    I Will a solenoid inside another solenoid increase its strength?

    Will placing a solenoid inside another solenoid increase it's over all strength? While doing research into solenoids I came across the MagLab (The National High Magnetic Field Laboratory) where they place coils one inside another to bolster the field, and reach upwards of 45 Tesla. They use an...
  43. B

    Pressure increase required for 1 Joule of work

    Homework Statement Estimate the pressure increase required to impart one joule of mechanical work in reversibly compressing 1 mol of silver at room temperature. Same process for alumina. Homework Equations W=-PdV dV=V(alpha)dT-V(beta)dP dT=0 The Attempt at a Solution I used the work...
  44. A

    Why does lifting an IV bag increase pressure?

    I understand that you need to increase the pressure in an IV bag to overcome the pressure in a vein so fluid pumps into it. But why does lifting the bag at some height increase the pressure?
  45. Abdul Wali

    Disadvantages of unnecessary increase in PID gain

    hi, I read somewhere that if we increase the PID gains unnecessarily, it will cause more energy consumption of the controller and it will lead to noise and distortion in the practical. May someone please give me more explanation on this?? that how it lead to noise or distortion in practical??
  46. W

    Simple pendulum - displacement increase

    <Moderator's note: Moved from a technical forum and therefore no template.> A simple pendulum of length l (supported by a light, rigid rod) is released from rest at a small angle to the upward vertical. Show that the time taken for the angular displacement to increase by a factor of 10 is...
  47. J

    How much do you need to increase the pendulums length by to

    Homework Statement How much do you need to increase the pendulums length by to double the pendulums period Homework Equations T = 2PI sqrt(length/gravity) The Attempt at a Solution Answer is 2sqrt(l). But I don't know how to get there. Any help would be greatly appreciated, thanks.
  48. S

    I Relativistic mass increase (simple or not)

    Hi, I have yet another question in the field of the special relativity theory. I always thought that the derivation of the relativistic mass is trivial. But I discovered that there is some complexity due to the transverse and longitudinal relativistic mass derivation. I saw a thread where...
  49. P

    A Does an increase in gain cause peaks to shift right?

    In a spectrum from an MCA (that is hooked up to a scintillator and PMT), does an increase in amplifier gain cause the peak to shift towards higher channels? I have a source and its really weak so while calibrating my detector, I had to turn the gain up way high to see a peak, but I'd preferably...
  50. G

    Heat required to increase the temperature

    Homework Statement [/B] At high temperatures the nitrogen molecule behaves like a one-dimensional harmonic oscillator. In this situation, estimate how much heat must be added to the system in order to increase the temperature of 1 mole of nitrogen gas by 10 degrees Celsius (for constant volume...
Back
Top