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A steel wire of length 1.6 m and diameter 1.10 mm is joined to an aluminum wire of identical dimensions to make a composite wire of length 3.2 m. Find the resulting change in length of this composite wire if an object with a mass of 5.00 kg is hung vertically from one of its ends.
What temperature change would cause a 0.10 percent increase in the volume of a quantity of water that was initially at 20 degrees celsius.
The electric field due to a charged point object has amagnitude of 25.0 N/C at a distance of0.019 m from the object. At what distance would the potential be tripled
The positioin of a particle moving along the x-axis is given by x =( 21+22t-6t^2)m, where t is in s. What is the average velocity during the time interval t= 1.0 s to t = 3.0s
a falling flower pot passes a 1.5 m tall window of an apartment building in a time of .16 s. from what height above the top of the window was the pot dropped
A bottle has a mass of 35.00g when empty and 98.44g when filled with water. When filled with another liquid, the mass is 88.78g. What is the specific gravity of this other fluid
an alternating rc circuit is constructed from a 331+/- 3 uF capacitor and a 15+/-.15 ohm resistor connected in series with an alternating voltage source that has a frequency of 100 Hz. Determine phase angle between the supplied EMF and the current..
A point charge q1 = -8.9 μC is located at the center of the thick conducting shell of inner radius a = 2.2 cm and outer radius b = 4.5 cm, the conducting shell has a net charge of q2 = 1.1 μC.
An AC generator has an output rms voltage of 94 V at a frequency of 76 Hz.find the inductive reactance and rms current
The systems shown below are in equilibrium with m = 6.10 kg and θ = 35.0°. If the spring scales are calibrated in newtons, what do they read? Ignore the masses of the pulleys and strings and assume the pulleys and the incline are frictionless.
A glass flask whose volume is 1000cm^3 at a temperature of 0.400^ C is completely filled with mercury at the same temperature. When the flask and mercury are warmed together to a temperature of 52.0 C, a volume of 8.25cm^3 of mercury overflows the..
An object has a weight of 4.5N in air, 3.4N in water and 3N in a salt solution. If the density of the water is 1000km m^-3, what is the density of the salt solution
A 5 Mev photon collides with an electron that is at rest, and imparts to it the maximum possible kinetic energy. What is the final momentum of the electron
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