How many revolutions would bohr''s theory suggest
A Hydrogen atom exists in an excited state for typically around 10 nanoseconds. How many revolutions would Bohr's theory suggest that an electron would make in an n = 2 state before decaying?
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Find the angle for total internal reflection when light starts in water and reflects off air.
A room in the lower level of a cruise ship has a 30cm diameter circular window.If the midpoint of the window is 4m below the water surface,determine the hydrostatic force acting on the window and the pressure center.
What is the final temperature of the water, cup, and bear when they reach thermal equilibrium? The specific heats of silver, aluminum, and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and 4190 J/(kg·K). Please a
An adiabatic and reversible steam turbine receives steam at 1 MPa and 300 degrees C. The exit pressure is 100 kPa. Determine the exit state (temperature and quality if saturated)
Steam enters an adiabatic turbine at 400C and 2MPa pressure. The turbine has an isentropic efficiency of 0.9. The exit pressure is so that actual work output from the turbine is wa=700kj/kg.
A fluid of viscosity µ is placed between two horizontal circular disks of the same radius R. The disk at z = 0 is stationary and the disk at z = b rotates with angular velocity ?
Calculate the two longest wavelengths of the incident photons that will experience this sharp drop. The target metal of the photoelectric effect apparatus has a work function of 2.05 eV.
A 3 cm thick stainless steel (thermal diffusivity 0.0000044, k=16.3) plate initially at 500°C is suddenly exposed to convective environment at 40°C with h=150 W/ m^2*°C. Calculate the time for the center temperature reaches 120°C.
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Identify and discuss at least two hormones involved in a child's growth? Discuss the impact of two hormones given to Peter on his body.
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