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- elizabethR
- Post #3
- Forum: Introductory Physics Homework Help
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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?- elizabethR
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- Elevator
- Replies: 4
- Forum: Introductory Physics Homework Help
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How Do You Calculate the Angle for Skiing Down an Incline?
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 :)- elizabethR
- Post #6
- Forum: Introductory Physics Homework Help
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How Do You Calculate the Angle for Skiing Down an Incline?
yea but when i do the inverse sin of .204 on my calculator i get .20544. i am not using it right?- elizabethR
- Post #3
- Forum: Introductory Physics Homework Help
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How Do You Calculate the Angle for Skiing Down an Incline?
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?- elizabethR
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- Incline Skiing
- Replies: 5
- Forum: Introductory Physics Homework Help
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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...- elizabethR
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- Function Motion Particle Particle motion Time Time dependent
- Replies: 1
- Forum: Introductory Physics Homework Help
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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...- elizabethR
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- Acceleration Brakes Constant Constant acceleration
- Replies: 1
- Forum: Introductory Physics Homework Help
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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...- elizabethR
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- Acceleration Constant Constant acceleration
- Replies: 1
- Forum: Introductory Physics Homework Help