I have not attempted to work on these, the only attempt i've done was look and stare at the questions and not know where to start or even begin the problem. I do not know which formula to use either. given is highlighted in bold lettering. Unfortunately i have other homework and these problems are due tommorow so urgent help is needed thx! 3. .050kg disk attached to the end of a .150-m wire revovles uniformly on a flat, frictionless surface. a) moving 3 revolutions per second, what is the force exerted by the wire on the object? b)What is the speed of the disk? 4.How large must the coefficent of friction be between the tires and the road if the car is to round a level curve of radius 85m at a speed if 95 km/h? 6. A satilite is place in orbit 6.00x10^6. Jupiter has a mass of 1.90x10^7 and radius of 7.5x10^7. Find the orbital speed. 7. The outer radius of saturns rings are 170,000. Find the period of the outer radius.