physics
A 5.30 kg package slides 1.57 m down a long ramp that is inclined at 11.8^\circ below the horizontal. The coefficient of kinetic friction between the package and the ramp is mu_k = 0.320 Calculate the work done on the package by the normal force. If the package has a speed of ...
general chemistry
naturally occuring chlorine is composed of 35CL with atomic mass of 34.969 37CL with atomic mass of 36.966 the average atomic mass id 35.453 what are the percantages of each isotope in naturally occuring chlorine ?
CHEMISTRY
melting point of mno4
french exam tomorrow, WHAT DO I DO?!
i want french exam for grade 6
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