Physics, 30.10.2019 03:31 stephaniesmile8
Ernest rutherford (the first new zealander to be awarded the nobel prize in chemistry) demonstrated that nuclei were very small and dense by scattering helium-4 nuclei (4he) from gold-197 nuclei (197au). the energy of the incoming helium nucleus was 7.32 β 10β13 j, and the masses of the helium and gold nuclei were 6.68 β 10β27 kg and 3.29 β 10β25 kg, respectively (note that their mass ratio is 4 to 197. assume that the helium nucleus travels in the +x-direction before the collision.) if a helium nucleus scatters to an angle of 110Β° during an elastic collision with a gold nucleus, calculate the helium nucleus' final speed (in m/s) and the final velocity (magnitude in m/s and direction counterclockwise from the +x-axis) of the gold nucleus.
Answers: 3
Physics, 22.06.2019 01:30
Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy
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Physics, 22.06.2019 06:50
What is the stall speed at sea level of an airplane that weights 10000 lbs., has a wing area of 300ft^2, and a maximum lift coefficient of 1.4? what is the stall speed if flaps that double cl,max are applied?
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Ernest rutherford (the first new zealander to be awarded the nobel prize in chemistry) demonstrated...
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