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9. The radius of a ping pong ball is 2.0 cm. If non-uniformities as much as 100 um exist on the surface of the ball and we blew it up to the size of the Earth, calculate the height of the highest peak in km and compare it with Mount Everest (8.848 km). 10. A11 ingot of gold the size of a lead brick (10.0 cm x 20.0 cm x 5.0 cm) has a mass of 19.32 kg. Find the density of gold in g/cm3. 6. A farm is estimated to be worth $500000 US. If the farm is square in shape, and each side is 1000 m, calculate the cost of 1 m2 of the farm. 7. Calculate the distance in m to our sister galaxy, the Andromeda galaxy, if when we look at it today it is a 2.5 million year old sight. 8. The eccentricity of the Earth's orbit around the Sun is 0.0167. If the relation between the semi-major axis and semi-minor axis is b = (Ix/1 ea and \"zit = 150000000 km, nd the area of the orbital ellipse in m2