Can I get some help with the effects of a variance in Earth's angular velocity?

I'm working on a monster story for my girlfriend, and some important stuff is going to happen on a planet where Earth's angular velocity (I'm fairly certain that's the word I'm looking for) is 1/2 that of our own Earth. I just want to run a few things by you guys and get your takes on it. Thanks ahead of time.<br><br>1: Days would obviously be longer, 48 hours in this case. Which in turn makes years longer, about 730 days or so. So a human would age in the same way as one on Earth. How does this affect plant life? Trees and the like?<br><br>2: With longer days, the planet would have a longer day/night cycle. What would be the effects on the tides? Would they be more extreme due to having 24 hours of the same gravitational pull from the sun and moon?<br><br>3: This may seem rudimentary, but I'm not sure. What are the repercussions of half the angular velocity on the planet's climate? I've always known that our 24 hour day contributes to the jet stream, trade winds, and other global wind patterns. How would a 48 hour day affect the wind patterns on a large scale?<br><br>I know that these questions are probably elementary for the likes of you guys, but I'm in the infantry. I don't exactly have a wealth of knowledge on the subject. Any help you guys can provide would be awesome, and I'll be more than happy to provide more context if you need it.<br><br>TL;DR: Earth variant planet with a 48 hour day cycle. What would be the effects on the climate, tides, and plant life?<br><br>EDIT: Thanks for the help guys.