you must explain for a rate a small sculpture made of brass (p brass = 8470 kg/m

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you must explain for a rate

a small sculpture made of brass (p brass = 8470 kg/m3) is believed to have a secret central cavity The weight of the sculpture m air is 15. 76 N. When it is submerged in water (p water = 1 x j03 kg/m3) and weighed the weight is 13. 86 N. What is the volume of the secret cavity? 1 x 10-4 m3 2 x 10 -4 m3 3 x 10 -5 m3 2x10-6 m3 E. 4x10-6m3 8 x 10-6 m3 a rocket of mass m has an escape speed from the earth (the minimum speed required in blasting off from the surface of the Earth so that the rocket can just escape the attraction of the Earth's gravitational field) equal to V. What is the value of the escape speed from the Earth if the mass of the rocket is doubled? 2V 0. 5V 1. 41V 0. 707V V The filament in an incandescent lightbulb normally radiates heat at a rate of 100 W. The surface area of the filament is 5. 0 x 10"5 m2. assuming the filament acts as an ideal blackbody, what is its temperature? 2720 degree C 272 degree C 2440 degree C 2160 degree C 216 degree C F. 244 degree C

Explanation / Answer

8)d

9)c

10)c

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