A 460 kg crate is being pulled at constant velocity by a force directed at 30° to the horizontal as shown in the diagram. The coefficient of dynamic friction between the crate and the floor is 0.24. Calculate a the magnitude of the pulling force and b the reaction force from the floor on the crate

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.