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An object moving in simple harmonic motion has an amplitude of 0.02m and a frequency of 20hz. Find the period of oscillation.
An ideal gas, for which cv = 5R/2, passes from points a − b via three paths
a − c − b shown in the figure, a − d − b and a − b. Let P2 = 2P1, v2 = 2v1. a) Calculate
the amount of heat/mol delivered to the gas in each of the three processes, expressing
the result as a function of R and T1. b) Calculate the molar heat of the gas as a function of R,
during the transformation a − b .1. Calculate the drift velocity of the electrons in a 12-gauge copper wire which has a diameter of 2. 5 mm carrying an 18.0 A , given that there is one free electron per copper atom. The density of copper is 8.80x103 kg/m3.
atomic mass of copper = 63.54 g/mol; Avogadros number = 6.02 x 10 23 atoms/mol
2. Calculate the total DC resistance of a 100 meter roll of 2.0mm2 copper wire if the resistivity of copper at 200 C is 1.72 x 10-8 ohm meter.
An object of mass 4kg moves round a circle of radius 6m with a constant speed of 12m/s. Calculate the force towards the center.
An object of mass 4kg moves round a circle of radius 6m with a constant speed of 12m/s. Calculate the angular speed.
A stone of mass 0.6kg attached to a string of height 0.5m, is whirled in a horizontal circle at s constant speed. If the maximum tension (force) in the string is 30N force before it breaks. Calculate the maximum number of revolution it can make.
A stone of mass 0.6kg attached to a string of height 0.5m, is whirled in a horizontal circle at s constant speed. If the maximum tension (force) in the string is 30N force before it breaks. Calculate
a.) The maximum speed of the stone
A harmonic oscillator has a mass of 4 kg and a spring with a force constant 100
N/m. Find the period, frequency and angular frequency.
calculate earth's mass given the acceleration due to gravity at the North pole is 9.830 m/s² and the radius of the earth is 6371km from pole to pole.
What is the potential energy if a +4 nC charge moves from infinity to point A, 5 cm away from a +3 μC charge?
