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Suppose a uniform meterstick is at rotational equilibrium when a 200 g mass is suspended at the 5 cm mark, a 130 g mass is suspended at the 85 cm mark, and the support stand is placed at the 40 cm mark. What is the mass of mthe meterstick?
Presume that the range of output frequencies is from 68.5 Hz to 15.7 kHz for a pipe organ. Take 343 m/s for the speed of sound. What is the length (in units of m) of the longest pipe open at both ends and producing sound at its fundamental frequency?
A grindstone of a radius 4 m is firstly spinning with a radius of 8 rad/s. The angular speed is then increased to 12 rad/s over next 4.0 seconds. Suppose that the angular acceleration is constant. What is the average angular speed of grindstone.
a generator is designed to produce a maximum emf of 170 v while rotating with an angular speed of 3600 rpm. each coil
Two 50 ohm resistors are connected in series to a 12 volt battery. What is the total resistance of the circuit
We use two circular metal plates of radius 0.51 m and thickness 6.3 mm to build a capacitor. What is the capacitance of this capacitor
Eight books, each 3.90 cm thick with mass 1.70 kg, lie flat on a table. How much work is required to stack them on top of each other.
Consider a bike moving with a speed of 0.80 past a stationary person. If the rider fires an object in the direction in which he is moving with a speed of 0.70 relative to himself, determine the speed of the ball relative to the stationary person.
A cup of coffee is on a table in an airplane flying at a constant altitude and a constant velocity. The coefficient of static friction between the cup and the table is 0.170 .
Find chemical potential exactly as a function of temperatureT for the given gas density n=N/S where S is the surface area. Is there Bose-Einstein condensation? Explain your answer.
Two 2.00 cm diameter insulating spheres have a distance of 5.70 cm between their surfaces. What is the electric field strength at the midpoint between the two spheres
Boiling Water at High Pressure. When water is boiled under a pressure of 2.00 atm, the heat of vaporization is 2.20 106 J/kg, Compute the increase in internal energy of the water
what is the definition of the joule in terms of the basic si
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