Predict/Explain Two children. Jason and Betsy ride on the same merry-go-round. Jason is a distance R from the axis of rotation; Betsy is a distance 2 R from the axis (a) is the rotational period of Jason greater than, less than, or equal to the rotational period of Betsy? (b) Choose the best explanation from among the following. I. The period is greater for Jason because he moves more slowly than Betsy II.The period is greater for Betsy since she must go around a circle with a larger circumference. III. It takes the same amount of time for the merry-go-round to complete a revolution for all points on the merry-go-round.
Predict/Explain Two children. Jason and Betsy ride on the same merry-go-round. Jason is a distance R from the axis of rotation; Betsy is a distance 2 R from the axis (a) is the rotational period of Jason greater than, less than, or equal to the rotational period of Betsy? (b) Choose the best explanation from among the following. I. The period is greater for Jason because he moves more slowly than Betsy II.The period is greater for Betsy since she must go around a circle with a larger circumference. III. It takes the same amount of time for the merry-go-round to complete a revolution for all points on the merry-go-round.
Predict/Explain Two children. Jason and Betsy ride on the same merry-go-round. Jason is a distance R from the axis of rotation; Betsy is a distance 2R from the axis (a) is the rotational period of Jason greater than, less than, or equal to the rotational period of Betsy? (b) Choose the best explanation from among the following.
I. The period is greater for Jason because he moves more slowly than Betsy
II.The period is greater for Betsy since she must go around a circle with a larger circumference.
III. It takes the same amount of time for the merry-go-round to complete a revolution for all points on the merry-go-round.
You're on an interplanetary mission, in an orbit around the Sun. Suppose you make a maneuver that brings your perihelion in closer to the Sun but leaves your aphelion unchanged. Then you must have
Question 2 options:
sped up at perihelion
sped up at aphelion
slowed down at perihelion
slowed down at aphelion
The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE ONLY TRIGNOMETRIC FUNCTIONS (SIN/TAN/COS, NO LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!
The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE DO NOT USE LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!
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