Asmall lead ball, attached to a 1.55-m rope, is being whirled in a circle that lies in the vertical plane. the ball is whirled at a constant rate of three revolutions per second and is released on the upward part of the circular motion when it is 1.9 m above the ground. the ball travels straight upward. in the absence of air resistance, to what maximum height above the ground does the ball rise?

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.

Which component of the earth’s atmosphere is decreased due to photosynthesis?

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