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4. -9.09 points KatzPSE1 19.P.017 At 21.5°C, the radius of a solid aluminum sphere is 6.00 cm (a) At what temperature will the volume of the sphere have increased by 2.50%? oc (b) what is the increase in the spheres radius if it is heated to 300°C? Assume α = 22.2 x 10-6 K-1 and β = 66.6 x 10-6 K-1 cm Need Help? Read It Submit Answer Save Progress Practice Another Version

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а) The change in volume of soli d aliminium sphere is 2.50 ή ((66.6x10-6 /K)) (7-21.5°C 100 T= 396.875 °C= 397 °C b) The change in radius is = (6,00 cm)(22.2×10-6 /K)(300 oC-21.5 °C -0.037 cm

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