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Earth's atmosphere is constantly bombarded by cosmic ray protons that originate somewhere in space. If the protons all passed through the atmosphere, each square meter of Earth's surface would intercept protons at the average rate of 1200 protons per second. What would be the electric current in amperes intercepted by a 16 x 107 km2 area on the planet?
18 g of helium gas are placed in a cylinder with a movable piston. The gas is compressed very slowly from a state of ( p1 = 5.5atm, v1 = 32.7 × 10^3 m3) to a state of (p2 = 17atm, v2 = 11 × 10^3 m3 )
A 12.6 V battery is in a circuit with a 30.0 mH inductor and a 0.150 resistor, as in Active Figure 20.27. The switch is closed at t = 0. Find the current after one time constant has elapsed
A thin sheet of transparent material has an index of refraction of 1.80 and is 24.0 µm thick. how many fringe shifts occur in the pattern
A lab uses a beam of electrons to probe the structure ofprotons and neutrons held in a target vessel. How many electrons strike the target each second
A container of volume 0.30 m3 contains 3 mol of argon gas at 31°C. suppose argon behaves as an ideal gas, find the total internal energy of the gas.
question the acceleration due to gravity on the surface of earth is g. calling r the radius of earth at what distance
A model thermodynamic system consists of N particles whose allowed energies are integer multiples of e: 0, e, 2e, 3e, 4e, Calculate the canonical partition function for the system
The excess internal energy of metabolism is exhausted through a variety of channels, such as through radiation and evaporation of perspiration. find the rate at which you lose energy by exhaling humid air
A circuit consists of an idealized 166 mH inductor and a 45.8 muF capacitor. What is the natural (linear) frequency of the circuit if the capacitor is first charged to 161 muC, What is the maximum energy stored in the inductor
A point source of light illuminates an aperture 1.90 away. A 11.5 -wide bright patch of light appears on a screen 1.40 behind the aperture. How wide is the aperture
A spherical balloon is made from a material whose mass is 2.57 kg. The thickness of the material is negligible compared to the 1.22-m radius of the balloon. Find the absolute pressure of the helium gas
0.5 kg of ice slowly melts. The latent heat of fusion is 80 kcal/kg. By how much does the entropy of the ice change
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