Philosophy: The Big Picture Unit 8 Which is TRUE of change in the 20th century?

A. Most changes were easily accomplished.
B. On the whole, it led to a more restrictive era.
C. Technology alone was responsible for the changes.
D. It occurred in many different aspects of culture and society.

What is the speed of an object at a given moment?

An engine undergoes a cycle as shown in the diagram. during a complete cycle the work done by the gas is 28.5×103 j and the energy transferred thermally out is 99.4×103 j. there are 1.5×1024 gas molecules and they have three active degrees of freedom. 6. (6 pts) during which process(es) is energy transferred thermally into the gas? a. 1→2 b. 2→3 c. 4→1 d. 1→2 and 4→1 e. none of the above

Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?