The orbit radius of uranus is 19.22 au. what is the distance in kilometers? (one au is about 150 million kilometers) a. 2,883,000 million kilometers b. 2,883 million kilometers c. 28 million kilometers d. 2.8 kilometers

100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)