Recent content by elizabethR

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    @ould the elevator be moving up or down?

    well i think that he would be moving down because the scale says he got heavier. i think that the force pushing down would make him seem heavier
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    @ould the elevator be moving up or down?

    elevator ?? A 615 N student standing on a scale in an elevator notices that the scale reads 645 N. would the elevator be moving up or down?
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    Skiing down an incline problem

    oh my gosh thank ya'll sooo much! i have been trying to figure that out for the longest time. i am so absent minded sometimes :)
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    Skiing down an incline problem

    yea but when i do the inverse sin of .204 on my calculator i get .20544. i am not using it right?
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    Skiing down an incline problem

    i have a question that pertains to skiing down an incline...i can do everything for it, but i have no idea how to get 11.8 degrees from: theta=sin^-1 (0.204) though. how would i know that 11.8 is the answer?
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    Particle motion described by a time dependent function x(t)

    how would i do this... A particle moving along the x-axis has its position described by the function x=( 2.00 t^{3}- 5.00 t+ 1.00 )\; {\rm m}, where t is in s. At t= 4.00 , what are the particle's position- i calculated that to be 109m , velocity, and acceleration? i have tried for over an...
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    Constant acceleration and brakes

    how would i do this problem... You are driving to the grocery store at 20 m/s. You are 110 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.50 s and that your car brakes with constant acceleration. 1)How far are you from the intersection when you...
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    Question about constant acceleration

    how would i do this problem... You are driving to the grocery store at 20 m/s. You are 110 m from an intersection when the traffic light turns red. Assume that your reaction time is 0.50 s and that your car brakes with constant acceleration. 1)How far are you from the intersection when...
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