A 3,000kg roller coaster is going upside down at the top of a loop. The coaster is traveling at 24m/s around the loop with a radius of 15m. a) What is the force of the tracks on the roller coaster at the top of the loop?
b) What is the force of the tracks on the roller coaster at the bottom of the loop?

Adisk with a radius of r is oriented with its normal unit vector at an angle q with respect to a uniform electric field. which of the following would result in an increase in the electric flux through the disk? check all that apply? a. increasing the area of the disk b. decreasing the given orientation angle of the disk c. decreasing the strength of the electric field d. increasing the given orientation angle of the disk, but not exceeding an angle of 90