During a circus act, one performer swings upside down hanging from a trapeze holding another, also upside-down, performer by the legs. if the upward force on the lower performer is three times her weight, how much (in m) do the bones (the femurs) in her upper legs stretch? you may assume each is equivalent to a uniform rod 31.0 cm long and 1.78 cm in radius. her mass is 55.0 kg.

Describe the function of the endomembrane system? what organelles are involved?

High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve