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Assume all temperatures to be exact, and neglect significant figures for small changes in dimension. On a warm day (88 F), an air-filled balloon occupies a volume of 0.300m^3 and has a pressure of 22.0 lb/in^2 . If the balloon is cooled to 32 in a refrigerator while its pressure is reduced to 14.7 , what is the volume of the air in the container? (Assume that the air behaves as an ideal gas.) answer in m3
A magnetic dipole antenna is used to detect an electromagnetic wave. The antenna is a coil of 50 turns with radius 5.1 cm. The EM wave has frequency 870 kHz, electric field amplitude 0.56 V/m, and magnetic field amplitude 1.87 10-9 T.
What is the mass of nitrogen in an nitrogen tank at 20C if the tank has a volume of 0,20m^3 and nitrogen pressure in the tank is 4,0 x 10^6 N/m^2
A series RLC circuit has R = 50 %uF057, L = 2.7 %uF06DH, and C = 52 nF. find the rms amplitude of the current flowing through the circuit
A crate of oranges weighing 194 Nrests on a flatbed truck 2.0 m from the back of the truck. The coefficients of friction between the crate and the bed areμs = 0.37 and μk =0.20. The truck drives on a straight, level highway at aconstant 8.1 m/s. Wh..
A 50 hard-boiled egg moves on the end of a spring with force constant . It is released with an amplitude 0.300 . A damping force acts on the egg. After it oscillates for 5.00 , the amplitude of the motion has decreased to 0.100.
Copper has 8.5×1028 electrons per cubic meter. How many electrons are there in a 25.0 cm length of 12-gauge copper wire, what is the average drift speed of the electrons along the wire
When additional mass is added to the piston, the height of the piston decreases to 16.4 cm. Find out the new pressure applied by the piston.
The displacement of a wave traveling in the negative x-direction is y(t)=( 5.6cm )cos( 5.2 x + 73 t), find the wavelength, frequency, and speed of this wave
An 15 by 7.5 house is built on a concrete slab 29 thick. What is the heat-loss rate through the floor if the interior is at 22 while the ground is at 12
Bob can throw a 460 g rock with a speed of 32 m/s. What is Bob's maximum power output as he throws the rock in kW
A pitcher claims he can throw a 0.145-kg baseball with as muchmomentum as a 3.00-g bullet moving with a speed of 1.50 x 103m/s. What must the baseball's speed be if the pitcher's claim is valid
A 44.7-kilogram object is pulled 7.5 meters along a horizontal surface with a 130-Newton force at 28o above horizontal. What is the net work done on the object
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