After performing an experiment, what is the next step that a physicist will most likely take in answering a question? Analyze results, Form a hypothesis, Develop an explanation, Submit Results for peer review

Smallest intensity of a stimulus that you can detect 50 percent of the time is

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.

16. a brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 n on him. the mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20m/s2 size 12{1 "." "20"" m/s" rsup { size 8{2} } } {} backward. (a) what is the force of friction between the losing player’s feet and the grass? (b) what force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) draw a sketch of the situation showing the system of interest used to solve each part. for this situation, draw a free-body diagram and write the net force equation.