2003 Honda Civic Whining in reverse and rattle in front rig

1. When I go in reverse I notice a whining noise much more than just a normal sound when going in reverse. It isn't there when I go in drive or neutral, only in reverse. I haven't changed the brakes recently ever. I just put new tires on it about a week ago. About 6-8 months ago the Honda dealership did replace the front struts due to a front end rattle, which resolved that issue.
2. Also, in the front passenger side of the vehicle there is a rattle at about 50 mph. It sounds like a loose screw rattling around in a jar. The sound is very slight, and it took my wife a while to convince me that it was even happening, but it is definitely there. When I apply the brakes the rattle goes away immediately. What could these problems be?