We are warmed on a hot moist day because water molecules in the air striking our bodies
A) transfer some of their kinetic energies to us.
B) gain kinetic energy as they change state.
C) form an insulating layer on our bodies.
Question 2
A level pipe contains a nonviscous, incompressible fluid with a density 1200 kg/m3 that is flowing steadily. At one position within the pipe, the pressure is 300 kPa and the speed of the flow is 20.0 m/s.
At another position, the pressure is 200 kPa. What is the speed of the flow at this second position? A) 567 m/s
B) 16.2 m/s
C) 32.9 m/s
D) 23.8 m/s
E) 186 m/s
Shape changes in molecules
The Water Cycle
Perception of Faces and Bodies
Surface molecules involved in the interaction between an antigen-presenting cell and a CD4+ T cell.
Two water pipes together can fill a certain tank in 6 h
Cold, dense water accumulates around the Arctic and Antarctic