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1. 8g of helium at an initial temperature of 280Kinteracts thermally with 7.0g of oxygen at an initial temperature of 550K
1) What is the initial thermal energy of each gas?
2) What is the final thermal energy of each gas?
3) How much heat energy is transferred, and in which direction?
4) What is the final temperature?
A Van de Graaff accelerator is essentially a parallel plate capacitor. Such a machine is changed by an electrical potential of 2.5 x 10^6 volts. What is the energy density stored in the field
A block of glass with flat sides is surrounded by air. A ray of light traveling in the glass is incident on the flat interface with air at the top surface of the block of glass, What is the refractive index of the glass
Three capacitors are connected in series. The equivalent capacitance of this combination is 2.60, What is the third capacitance (in F)
Two forces are applied to a car in an effort to accelerate it. The first force, F1 = 328 N, is applied at an angle α = 35° to the forward dashed line. The second force, F2 = 544 N, is applied at an angle β = 8° to the forward dashed line. (a) What is..
The spring constant for the tendon is the same for both groups, 32 {rm {N}/{mm}} . What is the difference in maximum stored energy between sprinters and nonathletes.
A train is travelling up a 4.5 degree incline at a speed of 3.25 m/s when the last car breaks free and begins to coast without friction. a) How long does it take for the last car to come to rest momentarily? b) How far did the last car travel befo..
A race car has a mass of 703 kg. It starts from rest and travels 40.0 m in 3.0 s. The car is uniformly accelerated throughout the entire time. What net force is exerted on it.
A 2.60kg box that is several hundred meters above the surface of the earth is suspended from the end of a short vertical rope of negligible mass, At what value of t does the box return to its initial position
In a television picture tube, electrons strike the screen after being accelerated from rest throughout a potential difference of 28000 V.
At what angle of incidence will green light (g = 560 nm) be most strongly reflected? Imagine the film has the minimum thickness that can produce these reflections.
The position of an object connected to a spring varies with time according to the expression x = (4.4 cm) sin(6.9?t). (a) Find the period of this motion.
A dielectric-filled parallel-plate capacitor has plate area = 30.0cm^2 , plate separation = 5.00mm and dielectric constant = 5.00. The capacitor is connected to a battery that creates a constant voltage = 10V.
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