Estimate frequency of vibration of your arm. let the length of the arm be 0.57 m. consider the arm as a simple pendulum and assume its center of mass is about 2/3 its length from the shoulder. express your answer with the appropriate units. estimate the natural period of vibration of your arm.

According to social exchange theory, altruistic behaviors benefit the individual who performs them.

4. who was the first one to measure the speed of light and conclude that it is finite? 5. who was the first philosopher who thought the speed of light is finite? 13. what is the speed of light numerically? 14. give an example of something moving faster than light 15. give an example for some particles or waves that

Which object is most likely represented by a dot?