is 7. Calculate the wavelength of 50-g golf ball travelling at 400 m/s. (Calcula
ID: 588760 • Letter: I
Question
is 7. Calculate the wavelength of 50-g golf ball travelling at 400 m/s. (Calculate answer to 2 significant figures) Neutron diffraction is an important technique for determining the structures of molecules. Calculate the velocity of a neutron with a wavelength of o.088 nm. (mass of neutron-1.675x1o24g) 8. The heat of combustion of glucose is 15.57 kJ/g. A 2.500-g sample of glucose is burned in a bomb calorimeter containing 2.700 kg of water. The temperature of the calorimeter and the water increased from 20.55°C to 23.25°C. What is the heat capacity of the dry calorimeter? 9· 12161Explanation / Answer
8)
so, we have:
wavelength = 0.088 nm = 8.8*10^-11 m
mass, m = 1.675*10^-24 g
= 1.675*10^-27 kg [using conversion 1 Kg = 1000 g]
we have below equation to be used:
wavelength = Planck constant / (mass*velocity)
8.8*10^-11 = (6.626*10^-34) / (1.675*10^-27*velocity)
velocity = 4.495*10^3 m/s
Answer: 4.5*10^3 m/s
Feel free to comment below if you have any doubts or if this answer do not work. I will edit it if you let me know
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