How can a roller coaster have enough energy for the entire track if a motor is only used to get the cars to the top of the first hill?

Select one:

A. The cars are moving so quickly that their momentum allows them to complete the track

B. The coaster uses only the kinetic energy produced when the cars go down the first hill this provides enough energy to complete the track.

C. The coaster uses conversions between kinetic and potential energies to continue on the tracks

D. The weight of the back cars provide enough force to push all of the cars in front of them forward this motion pulls the back cars as well.

Balance this equation: n2 + h2 > nh3, write the following molar ratios: n2 / n2 / nh3 h2 /

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

Provide a stepwise curved arrow mechanism that fully explains the outcome of the reaction shown below. oh нао* heat он