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!(adsbygoogle = window.adsbygoogle || []).push({});

3. .050kgdisk attached to the end of a.150-mwire revovles uniformly on a flat, frictionless surface.

a) moving3 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 ofradius 85mat a speed if95 km/h?

6. A satilite is place in orbit6.00x10^6.Jupiterhas amass of 1.90x10^7andradius of 7.5x10^7. Find the orbital speed.

7. The outerradiusofsaturnsrings are170,000. Find the period of the outer radius.

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# What is the speed of the disk?

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