Which kind of wave does not need a medium to travel

Ms. h's family is in the waiting room of the intensive care unit. ms. h is very ill and the family has been told she will probably die during this hospital admission. you are walking by the waiting room and you see that they are all seated together, crying. what is your best response? this task contains the radio buttons and checkboxes for options. the shortcut keys to perform this task are a to h and alt+1 to alt+9. a go into the waiting room, sit next to them, and give them time to talk with you. b call the hospital chaplain to visit them and offer prayers. c find a social worker to go into the waiting room to see if they need anything. d leave them alone to give them private time to do their grieving.

Chris, a master at office gossip and innuendo, says, "we know we have a corporate spy someplace in the organization, probably on the management team itself. there is no evidence that it is audrey. in fact, she's too clean, if you know what i mean. somebody should fire audrey; she's got to be the spy." by making this argument chris is actually engaging in (a) an appeal to emotion fallacy (b) a straw man fallacy (c) an appeal to ignorance fallacy (d) circular reasoning (e) an appeal to the mob fallacy

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?