B) In the 2008 Summer Olympics Jamaican athletes gained the attention and admiration of the world...
b) In the 2008 Summer Olympics Jamaican athletes gained the attention and admiration of the world. Explain how an increase in pulse rate can assist the athletes' performance. 14 marks) The Sun radiates energy to Earth at a rate of 1.7 10 14 kW. An average of about 30% is reflected and the rest is absorbed. Assuming that the atmosphere emits a blackbody in the infrared of land the radius of Earth atmosphere. c) 6378100000mm. Calculate the temperature of the 18 marks d) A pole-vaulter has a takeoff speed of 9 ms and a centre of gravity height of 1000mm above the ground. Calculate the maximum height that he could vault. 15 marks)
b) In the 2008 Summer Olympics Jamaican athletes gained the attention and admiration of the world. Explain how an increase in pulse rate can assist the athletes' performance. 14 marks) The Sun radiates energy to Earth at a rate of 1.7 10 14 kW. An average of about 30% is reflected and the rest is absorbed. Assuming that the atmosphere emits a blackbody in the infrared of land the radius of Earth atmosphere. c) 6378100000mm. Calculate the temperature of the 18 marks d) A pole-vaulter has a takeoff speed of 9 ms and a centre of gravity height of 1000mm above the ground. Calculate the maximum height that he could vault. 15 marks)