An automobile with an initial speed of 4.30 m/s accelerates uniformly at the rate of 3.00 m/s2 . Find the final speed and the displacement after 5.00 s

1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

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