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[T] A mass on a spring bounces up and down in simple harmonic motion, modeled by the function
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- A spring with a spring constant k of 100 pounds per foot is loaded with 1-pound weight and brought to equilibrium. It is then stretched an additional 1 inch and released. Find the equation of motion, the amplitude, and ine period. Neglect friction. Then y(t) = where t is time in (seconds) and y(t) is displacement (in feet). Amplitude: Period: inch(es) second(s).arrow_forwardA boat at anchor is bobbing up and down in the sea. The vertical distance, y, in feet, between the sea floor and the boat is given as a function of time, t, in minutes, by y = 10 + cos(2πt) ft. Find the vertical velocity, v, of the boat at time t. v = 10 ft/minarrow_forwardThe angular velocity o (in rad/s) of a pendulum is o = - 0.50 sin 2.0t. Find the angular displacement 0 as a function of t if 0 = 0.5 for t= 0.arrow_forward
- During a 12.8-hour period, the water level at Bay of Fundy, Nova Scotia, started at mean sea level (h=0), rose to 23.8 ft above sea level, dropped to 23.8 ft below mean sea level, and then returned to mean sea level. Which of the following model describes the height of the tide in ft as a function of time in hours, h(t) ? 23.8 sin (12.8 t) 23.8 sin(12.8 t) 47.6 sin(0.15625 t) 47.6 sin(12.8 t) 23.8 sin(0.15625 t) 47.6 sin (12.8t)arrow_forwardFind the speed at the given value of t. r(t) = (sin(3t), cos(6t), cos(7t)), t = %3D (플) = 프2arrow_forwardThe height of a ferris wheel above the ground is modelled by the function h(t) = - 0.5 sin 2t – 3, where h(t) represents the height in metres and t represents the time in seconds. Calculate the average rate of change of height of the ferris wheel from 2 to 4 seconds.arrow_forward
- A particle is moving in simple harmonic motion with frequency 40 hertz (cycles per second) and a maximum displacement of 0.3 mm from equilibrium position 0. Find an equation of the form y = a sinωt (a > 0) for the particle’s displacement y mm at time t seconds.arrow_forwardA spring with a spring constant k of 100 pounds per foot is loaded with 1-pound weight and brought to equilibrium. It is then stretched an additional 1 inch and released. Find the equation of motion, the amplitude, and the period. Neglect friction. Then y(t) c1cos(40sqrt2)t+c2sin(40sqrt2)t where t is time in (seconds) and y(t) is displacement (in feet). Amplitude: 1 inch(es) Period: 2pi/(40sqrt(2)) second(s).arrow_forwardcharge Q acts as a point charge to create an electric field.Its strength, measured a distance of 30 cm away, is 40 N/C.What is the magnitude of the electric field strength that you think you would expect to be measured at a distance of 60 cm away?arrow_forward
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