The Blue Book of Gun Values will help. To many variations to give a good answer
the approximate value of orbital velocity is about 8km/hr.
1 mach approx. equals to 1191 km/hr
50-75 USD
no real value. depending on condition - $100 to $200
Blast furnace calorific value is 780 Kcal/hr
Adults 60-70
About $2.oo
50 or so
50-100 USD
50-150
50-100 USD
50-125 or so