Polycythemia is an increase in red blood cells, which would increase the viscosity and decrease flow. ACTIVITY 3 Studying the Effect of Blood Vessel Length on Blood Flow Rate 1. Which is more likely to occur, a change in blood vessel radius or a change in blood vessel length? Explain why. Increase in blood vessel radius is more likely to occur.
Today, climate change is being driven by the addition of carbon dioxide and other greenhouse gases to the earth's atmosphere at rates faster than the planet's normal mechanisms can adjust to. The result is increasing concentrations of these gases in the atmosphere, and because they trap heat, increasing temperatures. This hurts people, animals, and plants. How do we know this? Scientists predict that if the increase in greenhouse gas emissions continues unabated, temperatures will rise by as much as 10 degrees Fahrenheit by the end of this century, potentially causing dramatic and irreversible changes to the climate.
The purpose of the experiment is to determine whether or not increasing temperature will increase the rate of the reaction. Reaction rate is a way of measuring how fast the reaction takes place. So the higher the reaction rate the faster the reaction takes place and the lower is the reaction time is. Research Question How does reaction rate change with increasing temperature of sodium thiosulphate in a reaction between hydrochloric acid (HCl(l)) and sodium thiosulphate (Na2S2O3(l)) ? Hypothesis With increasing temperature of sodium thiosulphate the reaction rate will increase as well.
Expansion, an increase in the volume of a substance, usually due to the addition of heat to the substance. The heat causes the molecules of the substance to move farther apart, making the substance occupy more space. A loss of heat causes the opposite effect, known as contraction. Although most substances expand when heated, not all expand at the same rate. Aluminum, for example, expands twice as much as iron when both are heated the same amount.
This extreme pressure change makes the iso bars compact together creating fast moving winds and causing wind speeds to increase to even out the air pressure. 3. Describe the changes in central pressure and sustained wind speed between 29 and 30 August 2005? The air pressure from august 29th to august 30th changed from 904mbars to 985 mbars. While the air pressure increased the winds decrease as iso bars spread apart and wind is no longer moving at an abrupt pace.
(d) Oil companies anticipate an upsurge in demand for oil in electricity generation. (e) The demand for petrol rises. (f) New technology decreases the costs of oil refining. (a) Shift right. (b) Movement up along (as a result of a rise in price).
(b) Mean temperatures are rising in many parts of the world. The rising temperatures may result in physiological and ecological effects on living organisms. Describe and explain these effects. Topic areas for assessment of scientific content: (1) principle of destabilising effect of rising temperature on metabolic systems within organisms and on balance in ecosystems. (P) (2) effect on rate of diffusion/gaseous exchange; possible consequences, e.g.
Viscosity can be affected by three main factors, Firstly, the higher the temperature, the lower the density of the magma, causing it to flow more easily. Secondly, the greater the amount of dissolved gases in the magma, the less viscous it will be, and lastly the higher the silica content, the more viscous it will be. Thicker, more viscous magma has a greater potential for explosive eruptions and therefore represent the greatest potential hazards. The thickest type of magma is known as Acidic Magma. Its relatively low temperature, high silica content and leads to blockages and powerful eruptions.
There will be increase in overhead with the growth, it cannot be considered like a totally new investment. Most of the overhead costs in this scenario are already fixed costs. * Erosion of Jell-O contribution margin? * Yes. I would consider erosion of Jell-o cost as it is significant which is 20% and we have to consider that it is also growing at the same rate as powder market.
To what extent does the world have an energy crisis? There has been an enormous increase in the global demand for energy in recent years due to rapid industrial development and population growth, especially in the less developed countries. The crisis will become when demand exceeds supply. A crisis like this can develop as a result of industrial actions such as strikes and government refusal for the movement of merchant ships in or out of ports. The cause of these could be over-consumption or prices rising at oil refineries.