PHY 201-Two satellites, A and B, are in different circular orbits

Subject: Physics    / General Physics
Question

1) Two satellites, A and B, are in different circular orbits about the earth. The orbital speed of satellite A is thirty-four times that of satellite B. Find the ratio (TA/TB) of the periods of the satellites.

2)A car is safely negotiating an unbanked circular turn at a speed of 20 m/s. The road is dry, and the maximum static frictional force acts on the tires. Suddenly a long wet patch in the road decreases the maximum static frictional force to one-eighth of its dry-road value. If the car is to continue safely around the curve, to what speed must the driver slow the car?