Possible values for the frequency of the string vibration
A certain piano string and an A440 tuning fork heard together give 3 beats per second. What are the 2 possible values for the frequency of the string vibration?
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Suppose that you titrate a 3 g sample of orange juice and it turns out to contain only 95.5mg of vitamin C. Further, it took 32.45mL of DCP solution to reach the end point of the titration.
You want to photograph a circular diffraction pattern whose central maximum has a diameter of 1.2 cm. You have a helium-neon laser (landa= 633 nm) and a 0.13 mm-diameter pinhole. How far behind the pinhole should you place the viewing screen?
A helium-neon laser beam has a wavelength in air of 633 nm . It takes 1.38 ns for the light to travel through 30 cm of an unknown liquid. What is the wavelength of the laser beam in the liquid?
Methane enters a heat exchanger at a volumetric flow rate of 120.0 m3/min, at a pressure of 1.013 bar and temperature of 5.0°C. At these conditions, the specific enthalpy of methane is -45.181 kJ/kg.
If 15.0 m3/min of steam at 450.0°C and 10.0 bar enters a turbine and leaves as saturated steam at 9.25 bar, what is the volumetric flow rate of steam leaving the turbine? If the turbine operates adiabatically, what is the work output?
The lowest tone to resonate in an open pipe of length L is 200 Hz. Which one of the following frequencies will not resonate in the same pipe?
The total power developed by the turbine is 11,400 kW. Kinetic and potential energy effects can be neglected. Determine the mass flow rate of the steam at each of the two exits, in kg/h.
Show the system of equations in matrix form. Give a numerical solution then make a temperature contour plot and calculate the heat flux.
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When the president is a Republican and the Senate is also controlled by Republicans, but the House of Representatives is controlled by Democrats,
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You have been chosen to lead a team at the U.S. Department of Homeland Security (DHS) to develop competitive advantages over cyber adversaries.
Compared to the leadership structure in the House of Representatives, the leadership structure in the Senate is which of the following?