Avehicle equipped with coil spring front suspension and a lea spring rear suspension "dog tracks" while driving on a straight, level road. technician a says that a broken center bolt could be the cause. technician b says defective upper control arm bushings on the front could be the cause. which technician is correct?

Ametal ball with a mass of 0.028 kg is dropped from rest at a height of 1.0 meters above the ground. assuming the energy in the ball is conserved, how much kinetic energy will the ball have when it is 0.5 meters above the ground?

What are similarities and differences of reflection, refraction, diffraction and absorption?

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?