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The angle 0 through which a disk drive is given by 0 (t) = a + bt- ct3,where a, b, c are constants, t is given in seconds and 0 is in radians. When t = 0, 0 = ,r/4 rad and the angular velocity is 2.00 rad/s and when t = 1.50 s, the angular acceleration is 1.25 rad/s2. Find a, b, c including their units.
air at a stagnation pressure of 450 kpa and a stagnation temperature of 400 k flows through a converging-diverging
A stainless steel rod with a circular cross section has a length of 100 mm and a diameter of 2.0 mm. It is deformed elastically in compression by a force of 500 N applied parallel to its length. The material has a Young’s modulus of 200 GPa, and a sh..
A vertical cylinder fitted with a piston contains air initially at 120kPa and 100C. The piston is restrained by a set of stops. The piston diameter is 0.1m, its mass is 5kg, and the ambient pressure and temperature are 100kPa and 20C. The cylinder is..
A mortar fires a projectile across a level field so that the range (R) is maximum and equal to 915 m. Find the time of flight.
Calculate the head provided by the pump and Calculate the brake power required if the pump efficiency is 75% (kW).
The heat transfer coefficient in the oven is 25W/m^2K. Calculate rate of heat transfer per m^2 area.
what is the enthalpy change needed to change 3 kg of liquid water at 0 c to steam at 0.1 mpa and 150 c? b. what is the
dry ice 560 g is introduced into an evacuated 20l container. the temperature rises and co2 vaporizes. if the pressure
An octave is defined as a doubling of the frequency. The claim is made that a low-pass Butterworth filter of order n has a roll-off (attenuation) of 6n dB/octave. Calculate the gain in dB for a second-order filter for the cut-off frequency itself, an..
a an ideal gas flows through a throttling device. does the temperature change increasedecrease or remain the same from
large wind turbines with blade span diameters of over 100 m are available for electric power generation. consider a
a carnot cycle engine using 1 kg air has the following conditionsheat addition beginning at 15 mpa and 1200k and
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