The image above shows a block pulled across a table. the spring scale which measures in newtons, reads the force resisting the motion a) drag force b) weight force c) gravity force d) friction force

If the spring constant k of a pogo stick is 3500 n m and the weight of the person on the pogo stick is 700 n, how much is the spring in the botom of the pogo stick compressed?

9.98 kg of r-134a at 300 kpa fills a rigid container whose volume is 14 l. determine the temperature and total enthalpy in the container. the container is now heated until the pressure is 600 kpa. determine the temperature and total enthalpy when the heating is completed. use data from the steam tables.

Wind and moving water provide energy. question 1 options: chemical mechanical thermal none of the above