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A machine, modeled as a simple spring-mass system, oscillates in simple harmonic motion. Its acceleration is measured to have an amplitude of 10,000 mm/s 2 with a frequency of 8 Hz.
Compute the maximum displacement the machine undergoes during this oscillation.
a charged particle with a charge-to-mass ratio of qm 5.7 108 ckg travels on a circular path that is perpendicular to a
A certain location, wind is blowing steadily at 10 m/s. Determine the mechanical energy of air per unit mass and the power generation potential of a wind turbine with 60 m diameter blades at that location. Take the air density to be 1.25 kg/m³.
A refrigerator in a kitchen at 20 degrees Celsius uses R-134a. The freezer is to be kept at -5 degrees Celsius or cooler. What is the maximum pressure that can be used in the evaporator? Why?
a piston-cylinder device contains 1 kg of h2o. the water is at 800oc and a pressure of 20 mpa. heat transfer occurs
The rules have been laid out for you by a baseball fan with limited knowledge of the game as follows: Give the steal sign if there is a runner on first base and
The exhaust nozzle of a jet engine expands air at 388 kPa and 174 C adiabatically to 95 kPa. Determine the air velocity at the exit when the inlet velocity is low and the nozzle isentropic efficiency is 96 percent.
you are requiredto heat treat samples of al 2024 to a t6 condition but you dont know what heat treating schedule to
The velocity of plane B relative to plane A can be expressed in the following form vb/a = Mi+Nj M i is the x-component of the velocity of plane B relative to plane A. what is the value of M, in km/h ?
An insulated rigid tank contains 5 kg of helium gas at 440 kPa and 31C. A valve is now opened, and helium is allowed to escape until the pressure inside drops to 200 kPa. Assuming the helium remaining inside the tank has undergone a reversible, adiab..
consider a house in winter. it is heated by the sun at a rate of 2 kw. electrical appliances in the house are drawing
A small, narrow, flat-bottomed fishing boat is loaded down with two crew member and a catch fish. The rear of the boat is a plane inclined at an angle theta¸ of 75 degrees with the horizontal. Thirty centimetres below the water surface is a hole in t..
If the longitudinal seam along the ridge tears open when it is subjected to a tensile load of 540 pounds per inch of seam, what is the factor of safety n against tearing when the internal pressure is 0.5 psi and the structure is fully inflated?
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