(WILL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST AND CORRECT SHOW WORK) A car slams on its brakes creating an acceleration of -4.3 m/s^2. It comes to rest after traveling a distance of 300 m. What was its velocity before it began to accelerate?

How is sound energy produced a. vibrating objects b. objects being heated c. temperature differences d. stationary objects

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.