The Physics of a High Speed Crash 70 MPH vs 85 MPHJun 03, 2017· The work energy principle says that the work done on an object is equal to its change in energy If I take the spring and car as my system, then there is no work done on it during the collisionAntibiotics for the prophylaxis of bacterial endocarditis ,Abstract Background Infective endocarditis is a severe infection arising in the ...
