During a marathon race, a runner’s blood flow increases to 10.0 times her resting rate. her blood’s viscosity has dropped to 95.0% of its normal value, and the blood pressure difference across the circulatory system has increased by 50.0%. by what factor has the average radii of her blood vessels increased?

To solve the problem it is necessary to apply the equations related to the Poiseuilles laminar flow law, with which the stationary laminar flow ΦV of an incompressible and uniformly viscous liquid (also called Newtonian fluid) can be determined through a cylindrical tube of constant circular section. Mathematically this can be expressed:

Where:

are the viscosities of the concrete before and after the increase

l = Length of the vessel

= Radio of the vessel before and after the increase

= Change in the pressure

The rates of flow before and after he increase

Our values are given as:

10 times her resting rate

95% of its normal value

Increase of 50%

Plugging known information to get

Therefore the factor of average radio of her blood vessels increased is 1.589 the initial factor after the increase.

when the use of electricity burdens the fuse and miniarure circuit beakers and there is a possibility of a fuse then they automatically cut off the electricity supply to your homes and after you fix the problem u jzt switch it on and it continues the supply of electricity to ur homes

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.