1 A boy's catapult is made of rubber cord
which is 42 cm long, with 6 mm diameter
of cross-section and of negligible mass. The
boy keeps a stone weighing 0.02 kg on it
and stretches the cord by 20 cm by applying
a constant force. When released, the stone
flies off with a velocity of 20 ms -1 Neglect
the change in the area of cross-section of
the cord while stretched. The Young's
modulus of rubber is closest to:​

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