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A tank of volume 0.456 m3contains 2.8 mol helium gas at 8?C. Assume that the helium behaves like as an ideal gas.The universal gas constant is8.31451 J/K mol, and Boltzmann's constants 1.38066 × 10-23 J/K. Find the total thermal energy of the system.
The plates of a 3.1 nF parallel-plate capacitor are each 0.27 m^2 in area. How far apart are the plates if there's air between them
The displacement of a wave traveling in the positive y direction id D(y,t) = 52 cm sin(5.5^-1y-72s^-1t). What is the velocity? What is the wavelength? What is the amplitude?
A hotel elevator ascends 170 {rm m} with a maximum speed of 5.90 {rm m/s}. Its acceleration and deceleration both have the magnitude of 1.3 {rm m/s^2}.
The large blade of a helicopter is rotating in a horizontalcircle. The length of the blade is 7.64 m, measured from its tip tothe center of the circle. Find the ratio of the centripetalacceleration at the end of the blade to that which exists at apoi..
As a parallel-plate capacitor with circular plates 19 cm in diameter is being charged, the currentdensity of the displacement current in the region between the plates is uniform and has a magnitude of 16 A/m2.
The rms current in a 54-Ω resistor is 0.50 A. What is the peak value of the voltage across this resistor
Conducting sphere A has a charge of 6C. Conducting sphere B has a charge of -3C. These spheres are touched together and then separated by a distance of D = 0.1 m. In terms of multiples of e, what is the net charge on sphere A?
the peak power of a 6ft. diameter antenna is 10 watts and its duty cycle is 0.250. the wave length is 0.03mcycle.
The position of a mass-on-a-spring oscillator is given by y = A sin(25t) where the value of t is in seconds, and A= 0.35 m. Find the maximum kinetic energy of an oscillator of mass 1.7 kg
Taking age as an independent variable and cholesterol level as a dependent variable compute . Find the regression of cholesterol level on age
A fairground ride called "The Wall of Death" consists of a cylindrical container of internal diameter 6.50m, mounted on a cylindrical axis. Calculate the coefficient of static friction between the wall and the passengers' backs
A plane accelerates from rest at a constant rate of 5.00 m/s along a runway that is 1800 m long. Assume that the plane reaches the required takeoff velocity at the end of the runway. What is the time needed to take off? What is the distance(m) trave..
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