The aorta transports blood from the heart to the body. In a person at rest:

• blood travels at a mean speed of 10 cm/s in the aorta
• blood travels at a mean speed of 0.5 mm/s in the capillaries
• the speed of blood decreases at a rate of 0.4 cm/s2 as blood travels from the aorta to the
capillaries

Calculate the time it takes for blood to travel from the aorta to the capillaries.

Assume that the speed of blood decreases at a constant rate.

Use the equation:

change in speed
rate of decrease in speed = change in speed / time

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?