Physics, 04.11.2019 21:31 Vicky22Shz

When thinking about human swimmers, which model of fluid drag most appropriate?
estimate the reynolds number for a human swimming in water. approximate the human as a sphere of radius 0.5m, swimming at a speed of about 11m/s. the density of water is approximately 1000kg/m³ and its viscosity is 0.001n/m².s.
a. re = 50, $f_d \sim -v^2$
b. re = 5 x 10⁵, $f_d \sim -v$
c. re = 2 x 10⁴, $f_d \sim -v^2$
d. re = 0.5, $f_d \sim -v$
e. re = 5 x 10⁵, $f_d \sim -v^2$

Answers: 2

Show answers

Other questions on the subject: Physics

Physics, 22.06.2019 08:30, wiedm4518

Determine the age of a fossil if it had only one eighth of its original carbon-14 content remaining?

Answers: 3

continue

Physics, 22.06.2019 12:30, jfrjtwrg

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

Answers: 1

continue

Physics, 22.06.2019 15:00, katyym80

You hang a book bag on a spring scale and place the bag on a platform scale so that the platform scale reads 23.7n and the spring scale reads 13.8n. what is the magnitude of the force that earth exerts on the bag?

Answers: 1

continue

Physics, 22.06.2019 15:10, deidaraXneji

In the circuit, the switch s has been open for a long time and r = 125 kohm. it is then suddenly closed. (a) determine the time constant before the switch is closed. s (b) determine the time constant after the switch is closed. _ s (c) let the switch be closed at t = 0. find the current in the switch as a function of time. (use t for time. express your answer in milliamps and seconds.) i(t) =_

Answers: 3

continue

You know the right answer?

When thinking about human swimmers, which model of fluid drag most appropriate?
estimate the...