1.A 639-kg satellite is in a circular orbit about Earth at a height above Earth equal to Earth's mean radius.(a)Find the satellite's orbital speed. m/s(b)Find the period of its revolution. h(c)Find the gravitational force acting on it.

2.A bicycle tire is spinningcounterclockwiseat3.60rad/s. During a time periodt=1.05s,the tire is stopped and spun in the opposite (clockwise) direction, also at3.60rad/s.Calculate the change in the tire's angular velocityand the tire's average angular acceleration_av. (Indicate the direction with the signs of your answers.)

(a)the change in the tire's angular velocity(in rad/s) rad/s

(b)the tire's average angular acceleration_av(in rad/s²) rad/s2

3.A satellite of Mars, called Phobos, has an orbital radius of 9.4 10⁶ m and a period of 2.8 10⁴ s. Assuming the orbit is circular, determine the mass of Mars.

Answer rating: 100% (QA)

1 a Orbital speed of the satellite Given G 667 1011 N mkg M 597 1024 kg r 637 106 m Using the formul... View the full answer