Probability that the total round-off error exceeds
Round-off error has a uniform distribution on [-0.6, 0.6] and round-off errors are independent. A sum of 40 numbers is calculated where each is rounded before adding. what is the probability that the total round-off error exceeds 4?
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A potential difference of 3.00 V will be applied to a 45.00 m length of 18-gauge silver wire (diameter = 0.0400 in). a) Calculate the current. b) Calculate the magnitude of the current density.
What temperature must the wheel be heated to? The linear thermal expansion coefficient for steel is 12*10^-6 degrees C^-1.
A radio antenna radiates 9.73 W of power at 248 Hz. How many photons per second are emitted by the antenna? Planck's constant is 6.63*10^-34 J*s. Answer in units of photons/s.
When matter emits a photon, what is the relationship between the energy of the matter before and after the emission (Eatom) and the wavelength (E photon) of the radiation emitted?
Develop a double pipe heat exchanger, specifying velocities, mass flowrates, length and inlet and outlet temperatures. Also calculate the pressure drop for each fluid.
A closed system undergoes a cycle consisting of two processes. During the first process, 40 Btu of heat is transferred to the system while the system does 60 Btu of work. Determine the heat transfer during the second process.
Find the cycle thermal efficiency and the power output in MW of if the steam mass flow rate is 5x10^6lbm per hour.
Why do chemists prefer to read and record the absorbance, rather than the percent transmittance, of light (electromagnetic radiation) when analyzing a sample having a visible color?
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