Sunday, February 23, 2020

Determine Specific heat capacity of water and metals Essay

Determine Specific heat capacity of water and metals - Essay Example During the experiment, precautionary measures were observed in order to prevent accidents by adhering to laboratory rules and regulations. While handling hot objects, direct contact was avoided and tongs were used to handle the metals. While transferring metals, splashing of hot water was prevented through gentle removal and dipping of the metal and thermometers in the beakers. To ensure that the metal cooled enough, running cold water on the metal surface and then dried. Measure the mass of the empty beaker record it, and then pour 500ml or 0.5 kg water into the beaker and measure the total mass. The mass of water is determened by subtracting the mass of the beaker from the total mass and recorded the mass (m). The table illustrates the data collected in the respective timeline during the experiment and recorded immediately. The data helps in drawing a chart that can be use to determine the value of R2 that is the line of best fit that is supposed to be 1. The chart is drawn from the data in Table 3 which will facilitate determining the closeness to the theoretical R2=1. From the chart the R2= 0.9913 which is very close to the optimum theoretical value. The equation of the trend line is y = 50.774x - 1266.6 that provides for a gradient of 50.774 and with a constant value of -1266.6. The specific heat capacity obtained for Water trial1 was (4076.25 J kg-1 â„Æ' -1) and trial2 (4080 J kg-1 â„Æ' -1). The specific heat capacity obtained for Aluminium was (890.37 J kg-1 â„Æ' -1) and that of Copper was (387.738 J kg-1 â„Æ' -1). Comparing these values with theoretical values, water, aluminium, copper are respectably (4185 J kg-1 â„Æ' -1), 897 (J kg-1 â„Æ' -1) and 385 (J kg-1 â„Æ' -1) (The Engineering Toolbox, n.d.), we can note a slight difference in the values. The values are not exactly the same as the theoretical values. The experimental error  is 2.25%. There are some explanations for this. Heat is lost to the surrounding during the transfer of

Thursday, February 6, 2020

TESLA Model X , SWOT Essay Example | Topics and Well Written Essays - 750 words

TESLA Model X , SWOT - Essay Example This in itself is a source of competitive advantage for the company. The company is unique in that there is not yet any other player in the industry that has manufactured a vehicle that matches Tesla’s innovative vehicle. As noted by Porter (1985), differentiation strategy gives the company a competitive edge over other players in that its products cannot be matched by other rival competitors. This will help the company to appeal to the interests of many customers by virtue of possessing unique features which make the vehicle exceptional. The other advantage of the company is that Model X car is efficient as a result of the fact that it is an electrified vehicle. This means that the customers will experience fewer expenses in the future since the vehicle does not use any form of fossil fuel. This comes against the background of rising fuel prices across the globe. However, the major weaknesses of this model car are that it is electric and it is expensive. The price is high as a result of the fact that it is expensive to manufacture. Honestly, there may be very few customers who may be ready to fork out more than $60Â  000 buying a vehicle. The price is too much such that ordinary people may not be in a position to afford it. it can also be seen that the automobile industry is also characterised by other players some of which are reputable such as Toyota and Daimler. These cars also have their own hybrid cars that do not use fossil fuel and they may pose a threat to Tesla Motors. According to Robson (1997), competition in the environment is one major threat that can impact on the viability of the organization. This is the case in terms of Tesla since the other competitors can also offer their hybrid cars that can also attract many customers since they are environmental friendly. Therefore, it is imperative for Tesla motors to capitalise on it s strengths and opportunities in order to gain a competitive advantage while at the same