physical science

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A satellite that is 4175 miles from the center of the earth, orbits with a period of 90 minutes. What is its centripetal acceleration?

  • physical science -

    If I recall correctly,

    a = rω²

    where ω = angular velocity
    Here, ω = 2π/1.5 hr

    a = 4175 * (2π/1.5)² = 4175 * 17.546 = 73254 mi/hr²

    Look good to you?

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