Physics, 17.12.2019 18:31 andygomez1312M
Amass m = 0.85 kg hangs at the end of a vertical spring whose top end is fixed to the ceiling. the spring has spring constant k = 65 n/m and negligible mass. at time t = 0 the mass is released from rest at a distance d = 0.45 m below its equilibrium height and undergoes simple harmonic motion with its position given as a function of time by y(t) = a cos(ωt – φ). the positive y-axis points upward.
(a) find the angular frequency of the oscillation, in radians per second.
( b) determine the value of φ, in radians.
(c) calculate coefficient a, in meters.
(d) what is the mass’s velocity along the y-axis, in meters per second, at time t1 = 0.15 s?
(e) what is the magnitude of the mass’s maximum acceleration, in meters per second squared?
(f) what is the magnitude of the mass s maximum acceleration, in meters per second squared?
Answers: 3
Physics, 22.06.2019 05:00
Unpolarized light falls on two polarizer sheets whose transmission axes are at right angles. a third polarizer is placed between the first two so that its axis makes a 52-degree angle with the axis of the first polarizer. a) what fraction of the incident light intensity is transmitted through the first polaroid? b) what fraction of the incident light intensity is transmitted through the second polaroid? c) what is the angle of polarization of the light that enters the third polaroid? d) what fraction of the incident light intensity is transmitted through the third polaroid. e) what happens if the middle polaroid is removed?
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Physics, 22.06.2019 12:10
Light traveling in water, nwater = 1.33, strikes a plastic block at an angle of incidence of 51.4°; part of the beam is reflected and part is refracted. if the index of refraction of the plastic is 2.0, what is the angle made by the reflected and refracted beams?
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Physics, 22.06.2019 17:00
How much energy is supplied to each coulomb of charge that flows through a 12-v battery?
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Amass m = 0.85 kg hangs at the end of a vertical spring whose top end is fixed to the ceiling. the s...
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