Three vector a, b and c each have a magnitud of 100m and lies in an xy plane, their dreiction relative to the potives direction of the x-axis are 30 degree, 45 degree and 60 degree rspectively, what are the magnitude and the angle of the a+b+c?

You are driving directly behind a pickup truck, going at the same speed as the truck. a crate falls from the bed of the truck to the road. (a) will your car hit the crate before the crate hits the road if you neither brake nor swerve? (b) during the fall, is the horizontal speed of the crate more than, less than, or the same as that of the truck?

The strong nuclear force acts over a small distance than the electrostatic force. true or false

What is the coldest temperature ever recorded in san antonio?