Select the best answer. What has to happen in order for work to be done?
An object must move in the same direction as the applied force.
All of these.
A force must be applied to an object.
An object must move because of force.

Nitrogen (n), phosphorus (p), and potassium (k) are the main nutrients in plant fertilizers. according to an industry convention, the numbers on the label refer to the mass percents of n, p2o5, and k2o, in that order. calculate the n: p: k ratio of a 30: 10: 10 fertilizer in terms of moles of each element, and express it as x: y: 1.0.

(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?

Consider this initial-rate data at a certain temperature for the reaction described by