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Electric Circuits
b) Suppose a spring-mass system has 18Nm 1 −
k = and m = 0.71kg. The system is
oscillating with an amplitude of 54 mm. (i) Determine the angular frequency of
oscillation. (ii) Obtain an expression for the velocity v of the block as a function of
displacement, x and calculate v at x = 34 mm. (iii) Obtain an expression for the mass’s
distance | x | from the equilibrium position as a function of the velocity v and calculate | x |
when v = 0.18 ms−1. (iv) Calculate the energy of the spring-mass system.
k = and m = 0.71kg. The system is
oscillating with an amplitude of 54 mm. (i) Determine the angular frequency of
oscillation. (ii) Obtain an expression for the velocity v of the block as a function of
displacement, x and calculate v at x = 34 mm. (iii) Obtain an expression for the mass’s
distance | x | from the equilibrium position as a function of the velocity v and calculate | x |
when v = 0.18 ms−1. (iv) Calculate the energy of the spring-mass system.
Electric Circuits
A tungsten wire has a radius of and is heated from 20.0 to . The temperature coefficient of resistivity is . When is applied across the ends of the hot wire, a current of is produced. How long is the wire? Neglect any effects due to thermal expansion of the wire.
resistivity at 20.0celcius is 5.6x10^-8 ohms/m
resistivity at 20.0celcius is 5.6x10^-8 ohms/m
Electric Circuits
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Electric Circuits
Calculate the resistance of 180 m of silver wire having a cross section of
0.33mm2
0.33mm2
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#332078 on Oct 2022