0.30-kg mass hangs at equilibrium from a spring suspended from a rod. pulling the mass down 4.0 cm from its equilibrium position requires a force of 5.0 n to stretch the spring. letting go of the mass after displacing it 4.0 cm from its equilibrium position, you observe that its amplitude decays to 0.50 cm after 10 oscillations. what is the q of this system? suppose that the system is now driven with a oscillating driving force of f (t) = f_0 sin omega t starting at time t = 0, where f_0 = 0.50 n and the driving frequency f = 2.5 hz. the initial displacement of the mass is, once again, 4 cm below its equilibrium position. find an equation for the subsequent motion of the mass and then plot it as a function of time. what is the steady state amplitude the oscillations? what is the initial period of the oscillations? what is the ultimate period of the oscillations? how much energy is stored in the oscillating system at steady state? how much energy is dissipated per period by the system at steady state?

1134567 a jet with mass m = 1.1 ă— 105 kg jet accelerates down the runway for takeoff at 2 m/s2. 1) what is the net horizontal force on the airplane as it accelerates for takeoff? 2.2*10^5 n your submissions: 2.2*10^5 computed value: 220000submitted: saturday, january 26 at 2: 41 pm feedback: correct! 2) what is the net vertical force on the airplane as it accelerates for takeoff? 0 n your submissions: 0 computed value: 0submitted: saturday, january 26 at 2: 41 pm feedback: correct! 3) once off the ground, the plane climbs upward for 20 seconds. during this time, the vertical speed increases from zero to 21 m/s, while the horizontal speed increases from 80 m/s to 95 m/s. what is the net horizontal force on the airplane as it climbs upward? n 4) what is the net vertical force on the airplane as it climbs upward? n 5) after reaching cruising altitude, the plane levels off, keeping the horizontal speed constant, but smoothly reducing the vertical speed to zero, in 13 seconds. what is the net horizontal force on the airplane as it levels off? n 6) what is the net vertical force on the airplane as it levels off?

What is required for an electric charge to flow through a wire? zero resistance in the wire a balance of electric potential high resistance in the wire a difference in electric potential

Identify the type of heat transfer occurring when chocolate melts in your hand