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.)
Standard Mileage Rate. Claiming the standard mileage rate is the simpler of the two options. For 2014, the rate is 56 cents per mile. With the mileage rate, you won't be able to claim any actual car expenses for the year. Neither lease payments, fuel, insurance nor vehicle registration fees can be claimed if the standard mileage rate is taken. Also, if you use your vehicle for both business and personal use, you can deduct only the business miles.