You buy a pizza pan instead of using your cookie sheets because you're likely going to cut your pizza on the pizza pan, which will scratch and score the pan, and you want your cookie sheets to remain as smooth as possible so the cookies don't stick to the sheet Yes to all the other questions, as far as frozen pizzas goYou want a pan of some sort if you're making fresh pizzas, thoughIt doesn't work to place fresh pizza dough on your oven racks.
Power can be expressed as Force x velocityThe force the crane must exert on the object to lift it at a constant velocity is the object's weightW mg 161(9.81) 1580 N P Fv 128 1580v v 0.0810 m/s
If you want to use your oven rack, don't put foil down if you want a crispy crustYou want the steam to escape from the pizza into the oven (making it crispy) not back into the pizza, making it soggy.
