Tuesday, November 5, 2019
Convert Pascals to Atmospheres Unit Conversion Problem
Convert Pascals to Atmospheres Unit Conversion Problem This example problem demonstrates how to convert the pressure units pascals (Pa) to atmospheres (atm). Pascal is a SI pressure unit that refers to newtons per square meter. Atmosphere originally was a unit related to the air pressure at sea level. It was later defined as 1.01325 x 105 Pa. Pa to Atm Problem The air pressure outside a cruising jet liner is approximately 2.3 x 104 Pa. What is this pressure in atmospheres?Solution:1 atm 1.01325 x 105 PaSet up the conversion so the desired unit will be cancelled out. In this case, we want Pa to be the remaining unit.pressure in atm (pressure in Pa) x (1 atm/1.01325 x 105 Pa)pressure in atm (2.3 x 104/1.01325 x 105) Papressure in atm 0.203 atmAnswer:The air pressure at cruising altitude is 0.203 atm. Check Your Work One quick check you should do to make sure your answer is reasonable is to compare the answer in atmospheres to the value in pascals. The atm value should be about 10,000 times smaller than the number in pascals.
Saturday, November 2, 2019
Teachers Roles in Autonomous Learning Shanghais Yan School of foreign Essay
Teachers Roles in Autonomous Learning Shanghais Yan School of foreign languages, Lanzhou University of technology, Lanzhou, China - Essay Example Learner autonomy is not based on the above misconceptions. Therefore, the actual definition can be captured through the ability of the learner to be responsible as well as independent. The learner is an active participant and is very conscious of what they learn, the way they does learn as well as the time they learn. This form of learning has been degfined by various scholars, including Holec who pointed out that the ability to have control over the learning process by the learner entails autonomy. Yan (2012) continues to argue about the benefits of learner autonomy. He points out that the learner has the capacity to develop enthusiasm and initiative in what they are learning. In addition, the learner becomes very independent while developing creativity and innovativeness. Since learner autonomy is beneficial, the teacher must play a role its promotion, argues the author. He proposes that being the knowledge giver that dominates the class throughout the class time, the teacher is the most well placed individual to inculcate learner autonomy. He concludes that the teacher is the facilitator, organizer and the manager to the learner. In addition, he is the counsellor to the
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