Sparrow hornets and orb weavers aren't too likely to interact.

In theory the spider might prey on the hornet, but sparrow hornets are large and strong enough that I suspect it would take a very busy spider to envenom one, and avoid being stung in the process, before the hornet broke free of the web. Too, wasps and hornets see much more acutely than many realize, and likely have a decent chance of seeing and dodging webs - I did once see a bumblebee caught in a red orb weaver's web, but never yet a wasp or hornet, for whatever that's worth. (I have seen a drunk bald-faced yellowjacket sleeping it off on my porch, with an orb weaver web in direct line between her and the fig tree, but I don't know that she didn't get there before the spider had spun her web for the night.)

Sparrow hornets also aren't known yet to have made it east of the Rockies, and the intervening terrain would be very difficult for them at least, more likely impossible. That said, they and Jorō spiders hail from much the same origin and may regularly share territory, in which case their relationships are probably fairly well known - I'd likely be able to say more here, except that I don't read Japanese and thus can't review the relevant literature.

No no, the murder hornets and spiders are supposed to distract each other so that the bear-sharks can finally rise from the depths and conquer the mainland.

Murder hornets to the west, giant spiders to the east. Take your chances with the tornados in middle America.