Thought experiment: we claim that the air track is frictionless, but this is not entirely true. how would our newton's 2nd law models (eq. 1 and eq. 3) of the two systems studied in this lab change if we were to account for the force of friction acting on the glider as it travels across the track? draw force diagrams to you. use f to denote the mathematical term for the force of friction. ww hence a fixed force (f = mhg). mass will be added to the glider, so that: f=mng = (m + mn)a (eq. 1) resulting in: fmg sin 0= ma (eq. 3)

In which type of system is power held solely by the central government and not shared with regional governments? group of answer choices federal unitary confederate oligarchic

In an old-fashioned amusement park ride, passengers stand inside a 3.0-m-tall, 5.0-m-diameter hollow steel cylinder with their backs against the wall. the cylinder begins to rotate about a vertical axis. then the floor on which the passengers are standing suddenly drops away! if all goes well, the passengers will “stick” to the wall and not slide. clothing has a static coefficient of friction against steel in the range 0.60 to 1.0 and a kinetic coefficient in the range 0.40 to 0.70. part a what is the minimum rotational frequency, in rpm, for which the ride is safe? express your answer using two significant figures. f f = rpm

2select the correct answer. javed suffers from a severe food allergy. which device should javed always carry? a. inhaler b. epi pen c. nebulizer d. insulin pen