Maximum possible induced emf
A car with a 1m long radio antenna travels at 60 km/hr in a place where the Earth's magnetic field is 6.00 x 10^-5T. What is the maximum possible induced emf in the antenna as it moves through the Earth's magnetic field?
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A dolphin located in sea water at a temperature of 25°C emits asound directed toward the bottom of the ocean 160 m below. How much time passes before it hears an echo?
A research study has suggested that changes in hours worked over time are due, in part, to change tax rates. "If taxes and [government expenditures] are high, that may lead to less work," said one of the researchers. Supporting this theory,
Are American rights being endangered by new interpretations of the Bill of Rights, or are these interpretations proper reactions to modern cultural evolution?
The water in a river flows uniformly at a constant speed of 2.03 m/s between parallel banks 87.7 m apart. You are to deliver a package directly across the river, but you can swim only at 1.76 m/s.
Ten thousand airline reservation stations are competing for the use of a single slotted ALOHA channel. The average station makes 18 requests/hour. A slot is 125 μs. What is the approximate total channel load?
It takes 132 J of work to move 1.8 C of charge from a positive plate to a negative plate. What voltage di?erence exists between the plates? Answer in units of V.
Ammonia is produced from nitrogen and hydrogen according to the following reaction: N2 + 3H2 → 2NH3 The fresh feed to the system, supplied at a total flow rate of 100 mol/min, consists of N2, H2 and
500 J of work are done to compress the gas while, in the same process, 1500 J of heat energy are transferred from the gas to the environment. Afterward, what is the rms speed of the molecules?
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