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Artist 52 [7]
3 years ago
14

the brightest , hottest, and most massive stars are the brilliant blue stars designated as spectral class O. if a class O star w

ith a mass of 3.26x10^31 kg has a kinetic energy of 1.10x10^42 j, what is its speed?
Physics
1 answer:
4vir4ik [10]3 years ago
6 0

The speed is 0.956 m / s.

<u>Explanation</u>:

The kinetic energy is equal to the product of half of an object's mass, and the square of the velocity.

                   K.E = 1/2 \times m \times v^{2}

where K.E represents the kinetic energy,

           m represents the mass,

            v represents the velocity.

                  K.E = 1/2 \times m \times v^{2}

    1.10 \times 10^42 = 1/2 \times 3.26 \times 10^31 \times v^{2}

                     v^{2} = (1.10 \times 10^42 \times 2) / (3.26 \times 10^31)

                     v = 0.956 m / s.

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