Which statement best defines Mechanical Energy? 1.Energy that is produced by an electrical current in a circuit.

2.Energy from the sun

3.The sum of an objects kinetic and potential energy

4.Energy that travels in waves due to vibrations.

Astone is dropped from a cliff and falls 9.44 meters. what is the speed of the stone when it reaches the ground? a. 13.6 m/sec b. 1.39 m/sec c. 185 m/sec d. 9.80 m/sec

Listed below are the measured radiation absorption rates (in w/kg) corresponding to 11 cell phones. use the given data to construct a boxplot and identify the 5-number summary. 1.16 0.85 0.69 0.75 0.95 0.93 1.18 1.17 1.42 0.54 0.57 the 5-number summary is nothing, nothing, nothing, nothing, and nothing, all in w/kg. (use ascending order. type integers or decimals. do not round.)

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?