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A weather balloon contains 12 m3 of hydrogen gas when it is released from a location at which the temperature is 22°C and the pressure is 101 kPa. It rises to a location where the temperature is -30°C and the pressure is 20 kPa. If the balloon is free to expand so that the pressure of the gas inside is equal to the ambient pressure, evaluate the new volume of the balloon?
A 1000kg car is traveling at 9m/s strikes a stationary 2000kg truck. they interlock as a result of the collision and move off as one. what is their velocity after the collision?
Find the quality (x) of a saturated wet mixture with a specific volume of 0.175 ft^3/lbm at a pressure of 1000 psig. State the answer in the proper units. Show all of your work. You need to use a steam table to solve this problem.
a sodium ion na is neutralized by capturing a 0.5 ev electron. what is the wavelength of the emitted radiation if the
A particle of mass 2.4x10^-5kg and charge 3.0x10^-6C is accelerated from rest in a uniform electric field of 180 N/C. Find its acceleration in the electric field
small 12.8g plastic ball is tied to a very light 26.9cm string that is attached to the vertical wall of a room. Find the direction of the electric field in the room
The cord is after that pulled from below, shortening the radius of the circle in which block revolves to 0.15. Model the block as a particle.
What is the minimum coefficient of friction between tires and road that would allow cars to take the turn without sliding off the road.
question a charge of -1.0 microc is located at the origin a second charge of 3.4 microc is located at x 0 y 0.1 m and
A guitar string is supposed to vibrate at 247 Hz but is measured toactually vibrate at 255 Hz. By what percentage should the tensionon the string be changed to get the frequency to the correctvalue?
A cube of ice is taken from the freezer at -5.7%u2218Cand placed in a 95g aluminum calorimeter filled with 305g of water at room temperature of 20.0 %u2218C, What was the mass of the ice cube
A kilogram of water (c = 4.186 kJ/kg °C) is stirred using a 400 watt device for 5 minutes. How much heat was lost to the surroundings
A 200g oscillator in a vacuum chamber has a frequency of 2hz. How many oscillations will have been completed when the amplitude is 30% of its initial value
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