15. If friction was completely removed from the track, what affect would this have on the roller coaster ride? A. Without friction, the roller coaster ride would last forever!

B. The coaster would eventually stop because the coaster would still lose energy.

C. The coaster would use hills and flat sections to stop instead.

Along, straight wire with 3.0 a current flowing through it produces magnetic field strength 1.0 t at its surface. if the wire has a radius r, where within the wire is the field strength equal to 36.0% of the field strength at the surface of the wire? assume that the current density is uniform throughout the wire

Solar cell a produces 100 joules of energy, when a light source is shown on it for 3 minutes. solar cell b produces 200 joules of energy when the same light source is shown on it for 5 minutes. which solar cell works better? a) solar cell b, because it produces more energy. b) solar cell b, because it generates more power. c) solar cell a, because it produces energy quicker. d) solar cell a, because it generates a greater wattage. eliminate

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration