What is the average speed of a race car if it travelled a total of 500 miles in 3.5 hours

What does earth’s rotation on its axis cause? the tides night and day passing of years phases of the moon

Name the intersection of plane bpq and plane cpq.

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.)