2. If a car is moving down a straight highway at a constant speed of 70 miles per hour, it has no net force acting on it. The engine has to keep running to overcome the constant force of friction that
is acting on the car by the road.
true
false
not enough information to determine

All the simple machines make work easier to do by changing the or of a force. a. size; type b. work; type c. size; direction d. type; direction

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.

Should we celebrate the voyages of zheng he mini q answer key