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Consider a simple model for the interior of the Earth: there is a spherical iron core with constant mass density ?0 and radius a; outside the core is "rock" with constant density ?1. Use these values for the densities: ?0= 8.30×103 kg/m3 and ?1= 4.50×103 kg/m3. The radius of the Earth is R = 6.40×106 m.
(a) First, calculate the mass of the Earth.
(b) Calculate the radius a of the iron core.
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A lighter-than-air balloon and its load of passengers and ballast are floating stationary above the earth. Ballast is weight (of negligible volume) that can be dropped overboard to make the balloon rise.
Determine the magnitude of the butterflys displacement.
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The multiplicity for a particular system is ?= exp(N^2V^3U^1/2/?), What is the system's entropy, temperature, chemical potential, pressure and heat capacity at constant volume
A technician wraps wire around a tube of length 40.0 cm having a diameter of 7.90 cm. find the self-induced emf in the solenoid?
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