Fred is playing the slot machines. after a certain number of plays, he wins a few coins, but fred is unable to determine how many plays he needs to win. which of the following statements is true? a. fred is on a fixed-interval schedule of reinforcement. b. fred is on a variable-interval schedule of reinforcement. c. fred is on a fixed-ratio schedule of reinforcement. d. fred is on a variable-ratio schedule of reinforcement.

Ineed asap! list 3 examples in which friction us or makes things easier in our daily life. explain the effect of friction for each. *make sure you explain the effect of friction for each example! *

Researchers determine that the biodiversity in a woodland region is declining. they identify two major threats to the region's biodiversity, a method to address each threat, and the expected outcome of each method. this information is shown in the table. a) reforestation would not benefit many species because most forest species live on the ground. b) reforestation would take the longest time to be effective because trees take several years to grow. c) biological augmentation would benefit only a few species because is is typically not very effective. d) biological augmentation would take less time to ve effective because it targets the majority of prey species.

The speed of light can be used to measure the