Answer to Question #267058 in Physics for salma

Question

At rest blood is pumped from the heart at a rate of 5.0 L/min into the aorta (of radius          1.0 cm). During the intense physical activity the rate becomes 25.0 L/min. Determine the speed of blood through the aorta for both cases.

2. A particle moves in simple harmonic motion with a frequency of 3.00 oscillations/s and an amplitude of 5.00 cm. (a) Through what total distance does the particle move during one cycle of its motion? (b) What is its maximum speed? (c) Find the maximum acceleration of the particle.

3. Using data from Table, calculate the daily energy needs of a person who sleeps for 8.00 h, walks for 2.00 h, works in the office for 8 hours, does moderate physical work during 2 hours and lying awake for 4 hours. (suppose, that working in office consumes energy at the same rate as sitting upright.). Suppose that the person mass is 80-kg and his height 1.75m.

Answer 1

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