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Some sharks respond to very weak electric fields, as weak as 1.0 µV/m. To grasp how weak this field is, if you wanted to produce it between two parallel metal plates by connecting an ordinary 1.5 V AA battery across these plates, how far apart would the plates have to be?
Consider a violin string with a vibrating length of 30 cm. If the speed of a wave on this string is 250 m/s, what is the tension in the string? Hint: You will have to estimate the diameter of the string. Assume the density is the same as that of s..
Determine the magnitude of the butterflys displacement.
A 50 kg person is riding a Ferris wheel. The Ferris wheel consists of 8 metal cars, each with mass 1500 kg located 15 m from the center. What is the angular acceleration of the Ferris wheel
In exercising, a weight lifter loses 0.123 kg of water through evaporation, the heat required to evaporate the water coming from the weight lifter's body. find the change in the internal energy of the weight lifter
You are working on the analysis of rocks brought back from the Moon, What is the density of the rock
A tuning fork vibrating at 516 Hz falls from rest and accelerates at 9.80 m/s2. How far below the point of release is the tuning fork while waves with a frequency of 489 Hz reach the release point? Take the speed of sound in air to be 340 m/s.
6.63 mol of argon gas is admitted to an evacuated 158.85 cm3 container at 48.95oC. compute the final pressure
Sodium-24, which is used to locate blood clots in the human circulatory system, has a half-life of 15.0 hours. Calculate the mass of the remaining sodium-24
Ramon has a coherent light source with wavelength 586 nm. What is the minimum width of the screen if Ramon wants to display three interference maxima
Electrons are accelerated from rest through a potential difference of 350 V and then enter a uniform magnetic field that is perpendicular to the velocity of the electrons. Estimate the period of this circular path
If you are designing a lander for Venus in the shape of a hemisphere 2.6m in diameter, how many newtons of inward force must it be prepared to withstand due to the Venusian atmosphere
The magnetic flux that passes through one turn of a 10-turn coil of wire changes to 5.0 Wb from 6.0 Wb in a time of 0.086 s. The average induced current in the coil is 185A. What is the resistance of the wire
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