HELP PLZ i just want to know to steps of solving this A car (2000kg) travels down a circular hill of radius 30m. The car’s tires can only withstand a maximum normal force of 50,000N without blowing out. What is the maximum speed the car can travel without blowing out the tires (getting a flat!)

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.

A14 kg rock starting from rest free falls through a distance of 5.0 m with no air resistance. find the momentum change of the rock caused by its fall and the resulting change in the magnitude of earths velocity. earth mass is 6.0 * 10^24 kg. show your work assuming the rock earth system is closed.