Physics Waves And Oscillations Level: High School
A swing swings 5 meters along the arc of a circle , and the back again repeatedly . What is the amplitude of this motion ?
Physics Waves And Oscillations Level: High School
Speed of Sound
How long does it take the sound of a thunderclap to reach your ears , if you are 2 kilometers away from the source of the sound ?
Physics Waves And Oscillations Level: High School
Time Period
The pendulum of a clock swings back and forth , going from left to right in 3 seconds . What is the period of the pendulum ?
Physics Waves And Oscillations Level: High School
A wave traveling along a string is described by y (x,t) = (0.00327m) sin[72.1 rad/m) x- (2.72 rad/s)t] where y(x,t) represents the transverse displacement from equilibrium of a small piece of string with a horizontal location of x at a time t .a) What are the amplitude , wavelength, period, and frequency of this wave ?
b) What is the velocity of this wave in the x direction ?
c) What is the displacement y of the small piece of string located at x = 0.225 m, at t = 18.9 s ?
d) What is the transverse component of acceleration at 18.9 s ?
Physics Waves And Oscillations Level: High School
Doppler Effect
A French submarine and a U.S . submarine move toward each other during maneuvers in motionless water in the North Atlantic . The French sub moves at 50.0 km/h and the U.S. sub at 70.0 km/h . The French sub sends out a sonar signal (sound wave in water) at 1000 Hz . Sonar wave travel at 5470 km/h .a) What is the signal’s frequency as detected by the U.S. sub ?
b) What is the frequency detected by the French sub in the signal reflected back to it by the U.S. sub ?
Physics Waves And Oscillations Level: High School
SHM
A mass of 0.100 kg oscillates in simple harmonic motion as shown in the drawing . Its vertical displacement from the equilibrium position is described by the expression y = 0.040 cos (omega t) .If the period T of the oscillations is 0.11 s and the mass of the spring is very much smaller than the attached mass .a) What is the total energy of the oscillating system ?
b) At what times during the first complete oscillation is the total mechanical energy equal to the potential energy ?
Physics Waves And Oscillations Level: High School
Intensity of sound
In 1976 , the “Who” set a record for loudest concert- the sound level 46m in front of a speaker was beta 2 = 120 dB . What is the ratio of the intensity I2 of the band at that spot to the intensity I1 of a jackhammer operating at a sound level beta 1 = 92 dB ?
Physics Waves And Oscillations Level: High School
Standing waves in a string
Oscillation of a 600 Hz tuning fork sets up standing waves in a string clamped at both ends . The wave speed for the string is 400 m/s . The standing wave has four loop and an amplitude of 2.0 mm .a) What is the length of the string ?
b) What is the equation of the displacement of the string as a function of position and time ?
Physics Waves And Oscillations Level: High School
A simple harmonic oscillator with a speed of 2.0 is subjected to damping so that it loses one present of its amplitude per cycle . About how much energy does this oscillator lose per cycle ?
Physics Waves And Oscillations Level: High School
What is the period of a pendulum consisting of a 6-kg object oscillating a 4-m string ?
Physics Waves And Oscillations Level: High School
A ping-pong ball weighs 2.5*10^-2N. The ball is placed inside a cup that sits on top of a vertical springs . If the spring is compressed 0.055 m and released , the maximum height above the compressed position that the ball reaches is 2.84 m . Neglect air resistance and determine the spring constant .
Physics Waves And Oscillations Level: High School
A ball hung from a vertical spring oscillates in simple harmonic motion with an angular frequency of 2.6 rad/s and an amplitude of 0.075 m. what is the maximum acceleration of the ball ?
Physics Waves And Oscillations Level: High School
Spring Constant
Gina’s favorite exercise equipment at the gm consists of various springs . In one exercise , she pulls a handle grip attached to the free end of a spring to 0.80 m from it unstrained position . The other end of the spring (spring constant = 53 N/m ) is held in place by the equipment frame . What is the magnitude of the force that Gina is applying to the handle grip ?Physics Waves And Oscillations Level: High School
Two identical loudspeaker’s produce audible loudness levels 34 db apart . If one speakers sound intensity in (1.58)*(10 to the negative 10th power) W/(m to the 2nd power) . Calculate the loudness and sound intensity of the second loudspeaker .
Physics Waves And Oscillations Level: High School
The formula mg = kx describes a spring that is stretched by hanging an object on it. The constant k is called the spring constant. What are its units ?Kg/s^ s/m kg
Ms^2/kg kgs^2
Nm
