this practical is to investigate how the pulse rate of humans changes when they exercise. Someone who is physically fit can supply their muscles with enough blood‚ carrying glucose and oxygen‚ for an activity at a lower heart and breathing rate. The fitter you are the lower your resting heart rate. You and your classmates will be the humans investigated. SAFETY: If you know you have any condition that affects you doing exercise‚ please make sure your teacher knows before you start the investigation
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Rates of Reaction Coursework Aim: To find out how different concentrations of sodium thiosulphate (Na S2 O3) affects the speed of its reaction with Hydrochloric acid (HCL). Introduction When Sodium Thiosulphate and Hydrochloric acid react they produce a cloudy precipitate. Both of the chemicals are clear solutions and they react together to form a yellow precipitate of sulphur‚ the equation for this reaction is: Na2 S2 O3 + HCL‚ H2 O + NaCL + SO2 + S Sodium Thiosulphate + Hydrochloric
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Corporate rate (Hotel Equatorial Penang) Introduction Hotel Equatorial Penang is a city type hotel that are located at the south part of the Penang Island. It is a luxurious 4-star property conveniently located only 6km (3.8mi) from the center of Penang. Local places of interest include Queensbay Mall. The hotel is situated adjacent to the prestigious international 18-hole Bukit Jambul golf course which was designed by Trent jones and declared one of the most challenging golf courses in Asia. It
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As the birth rates in recent years have been declined rapidly‚ the social issues that associate with older people’s social care come in quick succession. It is important to find out the way in solving these severe problems instead of ignoring. Therefore‚ this essay would analyze the approaches that different countries used and obtain the most sustainable way in order to achieve the social balance. Before comparing the elderlies’ social care approaches in different countries‚ providing the backgrounds
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What is inflation rate? Inflation means a sustained increase in the aggregate or general price level in an economy. Inflation means there is an increase in the cost of living. What are the economic policies that lead to low inflation in an economy? 1. Monetary Policy In the UK and US‚ monetary policy is the most important tool for maintaining low inflation. In the UK‚ monetary policy is set by the MPC of the Bank of England. They are given an inflation target by the government. This inflation
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determine if splitting a bean would affect its rate of respiration. Splitting a bean does not impact its rate of respiration. This is shown in the data‚ while the average rate of respiration for Whole beans is 1.35 and the rate of respiration for 1.16‚ the standard error of the mean is .15. Because the standard error of the mean is so high‚ they overlap in both of the data sets‚ which shows that the data is very similar. This is better shown in the graph‚ which has error bars shows just how close the two
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The national unemployment rate fell to 4.4 percent in October the lowest level of unemployment since May 2001. This is a sign of unexpected strength in the job market. [The unemployment rate is based on a survey of households‚ rather than the survey of employers used to calculate the payroll number. Unemployment does not include full-time students‚ the retired‚ children‚ or those not actively looking for a paying job.] The unemployment level is defined as the labor force minus the number of people
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American Obesity Rises The obesity rate in America has increased tremendously within the past 20 plus years. People have become more comfortable being heavier than the average. Society tries to enforce the idea of “slim” being “in”‚ while somehow contradicting itself by saying being comfortable in your own skin. The obesity rate in America has increased because of cultural changes‚ lifestyle habits‚ and genetics. Over the past 20 years‚ American culture has changed as a whole. Working men and
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temperature)‚ and 70°C. This investigation tested the hypothesis: The rate of osmosis will increase as the temperature increases 2x2x2cm cubes of potato were weighed and then placed into 100mL of 10% NaCl solutions for 10 minutes. After 10 minutes the cubes were again weighed to determine the amount of mass that they lost/gained and thus get an indication of the rate of osmosis. The results collected showed that the rate of osmosis was highest in the 70°C solution and lowest in the 20°C solution
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Labor rate variance is the difference between the actual labor rate and the applied overhead rate (standard rate multiplied by the number of actual hours worked). Consider this and respond to the following: • "Our workers are all under labor contracts. Therefore‚ our labor rate variance is bound to be zero." Do you agree or disagree that the labor rate variance will be zero if all workers are under labor contracts? Explain giving reasons. The concept of labor rate variance and its application
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