Physics, 07.03.2020 04:24 rachelkorkees
A merry-go-round is spinning at a rate of 5 revolutions per minute. Cora is sitting 0.5 m from the center of the merry-go -round and Cameron is sitting right on the edge, 2.0 m from the center. What is the relationship between rotational speed of the two children?
a. Cameron's rotational speed is four times as much as Cora's rotational speedb. Cora's rotational speed is the same as Cameron's rotational speedc. Cora's rotational speed is four times as much as Cameron's rotational speedd. Cora's rotational speed is double Cameeron's rotational speede. Cameron's rotational speed is double Cora's rotational speed
Answers: 1
Physics, 22.06.2019 05:30
An object weighs 40n in air, weighs 20n when submerged in water and 30n when submerged in a liquid of unknown density. what is the density of the liquid?
Answers: 2
Physics, 22.06.2019 10:30
The precision of a laboratory instrument is ± 0.05 g. the accepted value for your measurement is 7.92 g. which measurements are in the accepted range? check all that apply. 7.85 g 7.89 g 7.91 g 7.97 g 7.99 g
Answers: 1
Physics, 22.06.2019 15:50
An object with initial temperature 130 ∘ f is submerged in large tank of water whose temperature is 50 ∘ f . find a formula for f ( t ) , the temperature of the object after t minutes, if the cooling constant is k = − 0.2 . remember newton's law of cooling (the rate of change of temperature with respect to time is equal to k times the difference between the temperature of the object and the surrounding temperature) ! : )
Answers: 1
Physics, 22.06.2019 17:00
Since the energy was not raising the temperature of the water during these segments, what was the energy used to do instead? your answer must include an explanation of what is happening to the molecules.
Answers: 3
A merry-go-round is spinning at a rate of 5 revolutions per minute. Cora is sitting 0.5 m from the c...
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