Physics, 26.10.2019 04:43 samueldfhung
An athlete whirls a 6.55 kg hammer tied to the end of a 1.3 m chain in a simple horizontal circle where you should ignore any vertical deviations. the hammer moves at the rate of 1.4 rev/s. what is the centripetal acceleration of the hammer? assume his arm length is included in the length given for the chain. answer in units of m/s 2 .
Answers: 1
Physics, 21.06.2019 20:20
Suppose that a comet that was seen in 563 a.d. by chinese astronomers was spotted again in year 1951. assume the time between observations is the period of the comet and take its eccentricity as 0.986. what are (a) the semimajor axis of the comet's orbit and (b) its greatest distance from the sun?
Answers: 1
Physics, 22.06.2019 12:30
When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)
Answers: 2
Physics, 22.06.2019 15:10
What does si stand for,when referring to a system of measurement
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Physics, 23.06.2019 04:00
Acaregiver's love, affection, and acceptance are considered conditional if they're given only when the child is well-behaved or meets set expectations. t or f
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An athlete whirls a 6.55 kg hammer tied to the end of a 1.3 m chain in a simple horizontal circle wh...
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