Many gels and colloids are thixotropic materials, exhibiting a stable form at rest but becoming fluid when agitated. Some fluids are anti-thixotropic: constant shear stress for a time causes an increase in viscosity or even solidification. Constant shear stress can be applied by shaking or mixing. Fluids which exhibit this property are usually called rheopectic. They are much less common.
Hereâs a look at what the $19.95 excludes and how it may all add up in a very consumer-unfriendly fashion: Mileage: Rack up 50 miles between pickup and drop-off, and youâre looking at an added mileage cost of $29.50 for the van (at 59 cents a mile) and $44.50 for the truck (at 89 cents a mile). (Theoretically, U-Haul arrived at these specific mileage rates so that it could charge â and advertise â the $19.95 base fee.)
Mileage Rates PURPOSE 2013 2014 Standard 56.5 56.0 Charitable 14.0 14.0 Medical/Moving 24.0 23.5 Depreciation Portion of Standard Mileage Rate: 2009 â 21 cents per mile 2010 â 23 cents per mile 2011 â 22 cents per mile 2012 â 23 cents per mile 2013 â 23 cents per mile 2014 â 22 cents per mile.