How does a fixed pulley act as a machine? It changes the direction of the input force only.
It changes neither the size nor the direction of the input force.
It changes the direction and the size of the input force.
It changes the size of the input force only.

During a hot day, warm and moist air rises and cools in the atmosphere. which even would occur next on such a day? a. condensed droplets would gather to become water vapor. b. water vapor would condense into tiny droplets. c. water droplets would evaporate to form rain and snow.

What is the role of the phospholipid belayer in cellular transport in living cells

This class has taught you that the use of science and medicine in practical ways has become an international endeavor. one of the greatest examples of an international science accomplishment is which allows the profiling of human dna, useful not only to science but also medicine. a) forensic science b) the fbi c) the human genome project d) bioterrorism