Before 1960, it was believed that the maximum attainable coefficient of static friction for an automobile tire was less than 1. then around 1962, three companies independently developed racing tires with coefficients of 1.6. since then, tires have improved, as illustrated in this problem. according to the 1990 guinness book of records, the shortest time interval in which a piston-engine car initially at rest has covered a distance of one- quarter mile is 4.96 s. this record was set by shirley muldowney in september 1989. (a) assume that, as shown in figure p5.3, the rear wheels lifted the front wheels off the pavement. what minimum value of us is necessary to achieve the record time? (b) suppose muldowney were able to double her engine power, keeping other things equal. how would this change affect the elapsed time?

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

overcharge is the right answer system

the journeys of marquette, joliet and la salle a) new france expand.

all three of these explorers explored the midwest and the area around the great lakes, which they subsequently claimed for france.

this was a big portion of territory and expanded new france which before then only consisted of quebec province in northeastern canada