Match the following: Directly causes mechanical motion      …

Match the following: Directly causes mechanical motion                          Nervous Delivers oxygen and nutrients to the tissues                    Skeletal Responds to changes by transmitting electrical impulses            Integumentary Provides support and levers for muscles                           Lymphatic Protects underlying organs from damage,synthesizes vitamin D.                      Endocrine Secretes hormones, regulate  many processes of the body               Cardiovascular Functions in defense against infection and disease                       Muscular                                                              

The physicists are known to be daredevils. One of them, a ph…

The physicists are known to be daredevils. One of them, a physics professor’s gravitational potential energy is 1400 J as she sits 2 m above the ground in a sky diving airplane before it takes off.  What is the same professor’s gravitational potential energy when she begins to jump from the airplane at an altitude of 955 m?