A student discovers a comet heading toward the Sun. The student records the initial distance from the Sun as 'd' while recording the initial mass of the comet as 'm' which resulted in a gravitational force of 'F'. Further observation of the comet shows that as it reaches a positon d/2, the mass of the comet has been reduced to 1/3 of its original mass. Which expression best represents the value of the gravitational force at d/2? A. F/3
B. 2F/3
C. 4F/3
D. 9F/2

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