There are 12 attractions at Disney California Adventure with height requirements:

Height Requirements at Disney California Adventure
Attraction Height Requirement
Luigi's Rollickin' Roadsters 32"
Mater's Junkyard Jamboree 32"
Tuck and Roll's Drive 'Em Buggies 36"
Jumpin' Jellyfish 40"
Radiator Springs Racers 40"
Silly Symphony Swings - Tandem 40"
Soarin' Around the World 40"
The Twilight Zone Tower of Terror 40"
Goofy's Sky School 42"
Grizzly River Run 42"
California Screamin' 48"
Silly Symphony Swings - Single 48"

Height Requirements at Other Parks