Physics, 02.04.2020 02:42 edgarlimon2000
An apple breaks off from its branch and falls toward the ground 9 m below, accelerating all the way. At Point S the apple is 6 m from the ground. At Point T the apple is 3 m from the ground. How does the sum of the gravitational potential and kinetic energies of the apple compare between Point S and Point T?
A. The sum is greater at Point S than at Point T.
B. The sum is the same at both points (but greater than zero).
C. The sum is less at Point S than at Point T.
D. The sum is zero at both points.
Answers: 2
Physics, 21.06.2019 22:00
Orque can be calculated by multiplying the force (n) applied at 90? to the lever arm at a distance (m) from the pivot point (point of rotation), the compound si unit for the torque is n? m. if the force (at 90? to the lever arm) applied is 15 n and it is applied at 2.0 m from the pivot point (point of rotation), what is the torque on the lever?
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Physics, 22.06.2019 07:10
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Answers: 2
Physics, 22.06.2019 10:00
Suppose a wheel with a tire mounted on it is rotating at the constant rate of 2.15 times a second. a tack is stuck in the tire at a distance of 0.373 m from the rotation axis. noting that for every rotation the tack travels one circumference (a) find the tack's tangential speed. (b) what is the tacks radial acceleration?
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An apple breaks off from its branch and falls toward the ground 9 m below, accelerating all the way....
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