Acrate is pushed up each of the two ramps shown in the diagram below. based on the concept that simple machines make work easier, and assuming that both ramps are friction less, which statement is true?

ramp b requires less force than ramp a.

ramp a requires less force than ramp b.

ramp b raises the crate higher than ramp a.

ramp a raises the crate higher than ramp b.

In the derivation of rrkm theory, a factor of 1/2 is introduced when equalizing the rates of formation and decomposition of activated complex as keal-hr) = ko this is clearly against the assumption of transition state theory that states all the activated complex in the transition state iss going to the product. find the reason why this factor is introduced here.

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy