Draw two free-body diagrams for the rotating mass in this experiment, showing all the forces acting on it when

a. it is revolving at radius r and is attached to the Center Post spring,
b. it is revolving while hanging but not attached to the spring.

Part a constants huck finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft's motion what is huck's velocity (speed and direction) relative to the river bank? express your answer to three significant figures and include the appropriate units. relative to the shore)

Which are advantages of renewable resources? check all that apply. renewable energy supplies are completely reliable everywhere. some renewable resources will never be used up. little or no waste is produced by renewable resource plants. electricity can be generated in large quantities. many renewable energy facilities have lower operating costs.

In a good thermo flask the main cause of heat loss is