1)Objects with masses of 145 kg and a 445 kg are separated by 0.460 m.

(a)Find the net gravitational force exerted by these objects on a 43.0 kg object placed midway between them. magnitude__________ N

direction ___________ toward the 145 kg mass, toward the 445 kg mass, The magnitude is zero.

(b)At what position (other than infinitely remote ones) can the 43.0 kg object be placed so as to experience a net force of zero? m_________ from the 445 kg mass.

2) A satellite is in a circular orbit around the Earth at an altitude of2.6810⁶m.

(a) Find the period of the orbit. (Hint: Modify Kepler's third law so it is suitable for objects orbiting the Earth rather than the Sun. The radius of the Earth is6.3810⁶m, and the mass of the Earth is5.9810²⁴kg.)_______ h (b) Find the speed of the satellite.__________ km/s (c) Find the acceleration of the satellite.____________ m/s²toward the center of the earth.

3)