In the class it is illegal for the course to tell you are "okay" to exceed the posted speed limits. Even if "Collisions happen when one vehicle is traveling faster or slower than the flow of traffic."

You haven't yet learned that passing tests doesn't mean anything in real life? "No faster than 65 mph" is the correct BOOK answer. In reality you are ** totally legal ** doing 70 mph or a bit more -- your speedometer lies. Test it with your smartphone with a GPS speedometer app. The class is required by the State to follow the bullshit in the course and are not allowed to tell you that speedometers are generally off by 10%.

PHYSICS hw help, velocity of car turning around radius of 160m?

In the winter, you are driving your car on a flat road at constant speed. The road is a little icy, so the coefficient of static friction between your car tires and the road is only 0.240. The road curves to the right, following a circular arc with a radius of 160 m. Even on the curve, however, the road is completely flat—the curve is not banked at all. If you need it, use g = 10 m/s2.
(a) Under these conditions, what is the maximum speed at which you can travel around the curve without your car slipping?

You should only use your high-beam highlights when you are at least __________ feet behind if following another vehicle?

This urban legend has been going around for a while... There's only been a few documented cases of this in over 20 years.
And you're right, if it were a thing, it would be all over CNN, FOX, and the Today show. There's nothing to worry about. Gangs typically don't go after bystanders. They go after people that go against them, like other gangs, drug dealers, and violent people. No matter how rough and tough they are, they still don't shoot at random cars on the street!

If you find yourself driving in a bad neighborhood at night, just drive normally. Don't flash your lights just to be on the safe side, even though I doubt anything would happen! I've driven through north Philly at night (pretty sketchy in some places) many times with no problems!

FWD cars don't hydroplane. Most cars nowadays are FWD. You shouldn't get yourself into the position of skidding OR hydroplaning. If either happens it's because you're driving too fast.