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If the temperature inside a room is 298K and the temperature outside is 263K, calculate the maximum value of r (relative humidity) that can be accommodated inside the room without the windows fogging when (a) the interior part of the windows is not thermally isolated (i.e heat is transferred freely) from the exterior part, and (b) it is thermally isolated. Assume lv (latent heat of vaporization) = 2,500,000 J/kg and cw = 4218 J/kgK. Please show all work.
A point charge of +Q is placed at the center of a square, and asecond point charge of -Q is placed at the upper-left corner. It is observed that anelectrostatic force of 2.0 N acts on the positive charge at the center.
A cart of mass m = 1.4 kg is released from the top of a ramp sloped ? = 13° relative to the horizontal. The length of the ramp is L =9.6 m. find the car's Kinetic Energy at the bottom of the ramp
A small drop of oil is suspended motionless in the air by a uniform electric field that is directed upward and has a magnitude of N/C, What is the mass of the drop
The potential difference across a resting neuron is about 80 mV and carries a current of about 0.10 mA. How much power does the neuron release
A pipe open only at one end has a fundamental frequency of 256 Hz. A second pipe, initiallyidentical to the first pipe, is shortened by cutting off a portionof the open end.
A car moving at 10 m/s crashes into a barrier and stops in 0.50s. There is a 20kg child in the car. Suppose that the child's velocity is changed by the same amount as the cars in the same time period.
the plates of a parallel-plate capacitor have a separation of 5.20mm and each has an area of 15.0cm2 . each plate
The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of the water. For comparison, determine the weight of a jetliner whose mass is 4.30 × 105 kg
The secondary voltage of an ignition trans- former in a furnace is 14 kV. When the primary operates at an rms voltage of 103 V, What is the impedance in the sencondary
A 50-kg diver steps off a 10-meter high platform at the local pool. She comes to rest 3.0 meters below the surface of the water
A simple harmonic oscillator has spring constant k = 6.6N/m , amplitude A = 12cm , and maximum speed 4.6m/s. What's the oscillator's speed when it's at x = 5.8cm
what was the initial speed given to the rock. A light plane is headed due south with the speed of 154 km/h relative to still air. After 1.06 hour, the pilot notices that they have covered only 127km and their direction is not south but southeast (4..
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