A 0500-kg mass on a spring has velocity as a function of


1. Calculate the force constant of the spring

A 0.500-kg mass on a spring has velocity as a function of time given by vx (t) = (3.60cm/s) sin [(4.71s-1)t -?/2]. What is

a) period?

b) The amplitude?

c) The maximum acceleration of the mass?

What is the force constant of the spring? 

2. Determine the density of krypton gas

a) What is the density of Krypton gas at standard temperature and pressure? The atomic mass of Krypton is 83.80 atomic mass unit.

b) What is the density of Carbon-Dioxide gas under the same conditions?

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