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ARC-Challenge / Mercury_407327 / A physicist wants to determine the speed a car must reach to jump over a ramp.…

Problem

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question

A physicist wants to determine the speed a car must reach to jump over a ramp. The physicist conducts three trials. In trials two and three, the speed of the car is increased by 20 miles per hour. What is the physicist investigating when he changes the speed?

choices

the control
the hypothesis statement
the dependent (responding) variable
the independent (manipulated) variable

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Source and history

upstream_id / Original problem ID: Mercury_407327
task_id: b949af3c-1380-53c5-8999-25b708c7f18c
task_key: ARC~2dChallenge--test--Mercury~5f407327
task_revision_id: 2
config / split: ARC-Challenge / test

Official source

initial import