If the results of a study do not support a hypothesis, it means that experiment failed

Which feature of a heating curve indicates a change ofn state

The bar of prob. 5/82 is repeated here. the ends of the 0.4-m bar remain in contact with their re- spective support surfaces. end b has a velocity of 0.5 m/s and an acceleration of 0.3 m/s2 in the di- rections shown. determine the angular accelera- tion of the bar and the acceleration of end a.

Where do magnetic lines of force enter earth?