Determining the magnitude-direction of the force
A 1.00-kg object is observed to accelerate at 10.0 m/s2 in a direction 30.0 north of east. The force F2 acting on the object has a magnitude of 5.00 N and is directed north. Determine the magnitude and direction of the force F1 acting on the object.
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A charge of 8.0 pC is distributed uniformly on a spherical surface (radius = 2.0cm), and a second charge of -3.0 pC is distributed uniformly on a concentric spherical surface (radius = 4.0cm). Determine the magnitude of the electric field 5.0cm fr
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A 1.00-kg object is observed to accelerate at 10.0 m/s2 in a direction 30.0 north of east. The force F2 acting on the object has a magnitude of 5.00 N and is directed north. Determine the magnitude and direction of the force F1 acting on the objec
The maximum temperature is 2500 K. Determine the thermal efficiency and the mean effective pressure for the cycle.
Find (a) the energy absorbed as heat and (b) the change in entropy of a 4.60 kg block of copper whose temperature is increased reversibly from 46.3°C to 95.5°C. The specific heat of copper is 386 J/kg·K.
The turpentine and the aluminum cylinder are then slowly warmed together to 91.0°C. (The average linear expansion coefficient for aluminum is 2.4 x10^-5/°C, and the average volume expansion coefficient for turpentine is 9.0 x10^-4/°C.)
The maximum temperature is 1200 K and the minimum temperature is 290 K. The minimum and maximum pressures are 95 and 380 kPa, respectively. Calculate the power output of the turbine.
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