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Part A: How many conduction electrons are there in a 3.50 mm diameter gold wire that is 50.0 cm long?
Part B: How far must the sea of electrons in the wire move to deliver -29.0 nC of charge to an electrode?
A park merry-go-round consists of a 210 kg circular wooden platform 3.90 m in diameter. Four children running alongside push tangentially along the platform's circumference until, starting from rest, the merry-go-round reaches a steady speed of on..
A rabbit runs in a straight line with a velocity of +1.6 m/s for a period of time, rests for 9 s, and then runs again along the same line at +0.55m/s for an unknown amount of time. The rabbit travels a total distance of 1116m, and its average spee..
The electric field at point P just outside the outer surface of a hollow spherical conductor of inner radius 15 cm and outer radius 31 cm has magnitude 465 N/C and is directed outward.
Calculate the change in the melting point of naphthalene for one atmosphere rise in pressure given that its melting point is 80 C. Latent heat of fusion is 4563 cal/mol and increase in volume on fusion is 18.70 cm3 per mol and 1 calorie = 4.2×10^7..
A wrecking yard inventor wants to pick up cars by charging a 0.400 m diameter ball and inducing an equal and opposite charge on the car.
A person stretches a rope of length 55 m between the top of a building to the base of a tree d = 23 m away. How tall is the building.
A 525-? resistor, an uncharged 1.50-µF capacitor, and a battery with an emf of 6.31 V are connected in series, What is the current after one time constant
Iodine-131 has a half-life of 8 days. A 2-gram sample of at first pure iodine-131 is stored for 32 days. How various grams of iodine-131 remain in the sample afterwards.
If astronauts could travel at v = 0.950 c, we on Earth would say it takes (4.20 / 0.970) = 4.42 years to reach Alpha Centauri, 4.20 light-years away. The astronauts disagree. How much time passes on astronauts' clocks? What is the distance to Alph..
An ideal transformer has 890 turns in its primary coil and 150 turns in its secondary coil. What is the output voltage of the secondary coil
At 500°C, the diffusion coefficient of Zn in brass is 4.10-17 m2.s-1. What is the flux of Zn moving down the rod.
Determine Maximum wavelength and Minimum wavelength. How various penguins of mass 16 kg each can stand on the ice block before they find their feet wet.
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