Acar travels at a constant rate for 100 miles going due west for one hour. then it travels at a constant rate for another 75 miles west for one hour. what is the instantaneous velocity at any time during the first hour of the trip?
a. 92 mph west
b. 75 mph west
c. 100 mph west
d. 137 mph west

The image shows a pendulum in simple harmonic motion the pendulum starts at a and swing to e

Gather reliable information to brent make his decision. to gather this information, use newspapers, call insurance companies or look at their web sites, and review consumer magazines and web sites. also, look at the manufacturer web site or for information about gas mileage. list the sources you use and take notes.

Asheet of steel 1.5 mm thick has nitrogen atmospheres on both sides at 1200oc and is permitted to achieve a steady-state diffusion condition. the diffusion coefficient for nitrogen in steel at this temperature is 6 x 10- 11 m2 /s, and the diffusion flux is found to be 1.2 x 10-7 kg/m2 -s. also, it is known that the concentration of nitrogen in the steel at the high-pressure surface is 4 kg/m3 . how far into the sheet from this high-pressure side will the concentration be 2.0 kg/m3 ? assume a linear concentration profile.