On an icy road, a 1200-Kg car moving at 50 Km/h strikes a4400-Kg truck moving in the same direction at 35 Km/h. Thecombination is soon hit from behind by a 1500-Kg car speeding at 65Km/h. If all three vehicles stick together, what is the speed ofthe wreckage?

Name three different units of energy used to measure heat and describe what type of situations each is usually used.

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.

Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0