Aholiday ornament in the shape of a hollow sphere with mass m = 1.50×10−2 kg and radius r = 5.50×10−2 m is hung from a tree limb by a small loop of wire attached to the surface of the sphere. if the ornament is displaced a small distance and released, it swings back and forth as a physical pendulum.
calculate its period. (you can ignore friction at the pivot. the moment of inertia of the sphere about the pivot at the tree limb is 5mr^{2}/3.)
take the free fall acceleration to be 9.80 m/s^2. express your answer using two significant figures.

Which of the following statements comparing electron microscopy and light microscopy is false? which of the following statements comparing electron microscopy and light microscopy is false? both the electron microscope and the light microscope use the same wavelengths for illumination. images produced by light microscopes can be in color, whereas electron microscope images are black and white unless they are artificially colored. the electron microscope has greater resolution than the light microscope. electron microscopes can allow examination of viruses and internal cell structures, whereas light microscopes are limited to objects that are 0.5 micrometers and larger. request answer