an object is moving in around a uniform circle that has a 30.0 m radius. it moves at a speed of 25.0 m/s. what is the frequency of the objects motion?

A pendulum swings back and forth from a string. When it is lying motionless it is y=6 ft from a nearby wall. When the pendulum is furthest from the wall, it is 9 ft. It takes 20 seconds to complete one cycle. Suppose you start timing the pendulum when it is furthest from the wall.a) Sketch a graph of this situation. b) Write an equation of this sinusoidal.

A pair of hoop earrings is in the form of peace signs and each earring can be made to oscillate with simple harmonic motion about the point where the earring is attached to the hook that goes through the ear lope. The earrings are made of cylindrical silver wire having a density of 10.2 g/cm3 and a diameter of 0.15 cm. Each earring can be thought of as consisting of a ring that is 1.5 cm in diameter, a central vertical rod that is 1.2 cm in length and two diagonal rods, each 0.6cm in length as shown in the diagram above. The distance from the pivot point of the earring to the center of mass of each diagonal rod is 0.975 cm. Based on this information, determine the period of this physical pendulum.

A tire has a tread pattern with a crevice every 2.25 cm. Each crevice makes a single vibration as the tire moves. What is the frequency of these vibrations if the car moves at 37 m/s? f=f=  Hz

8. A string on a bass is plucked and oscillates up and down 60 times per second. The amplitude starts out at 0.4cm and decreases by 10% per second. Write an equation for the position, P, of the string as a function of time, t. Assume the string starts at its lowest position.

2.52.There is a whistle attached to each end of a 3.4m long stick. As shown in the picture on the right, the bar rotates at an angular speed of 20 rad/s in the horizontal plane with the line passing through the center of the bar as the axis. What is the maximum number of beats per second observed by a person far away from this bar? (However, the vibration frequency of the sound coming from the whistle is 99Hz, and the speed of sound is 340m/s.) N=rw=34m/ дан 20 rows/s w = 20 rad/s

The midpoint of a guitar string demonstrates simple harmonic motion with motion following the form x(t) = A sin (wt +ϕ). It has an angular frequency of w = 2.65 x 103 s-1 and an amplitude of A=1.50 mm. The phase constant is ϕ= pi/2. What is the maximum magnitude of the acceleration of the string?