1740

Physics Waves And Oscillations Level: High School

The range of human hearing extends from 20 Hz to the 20000 Hz . Find the wavelengths of these extremes at a temperature of 27 degrees C .



1739

Physics Waves And Oscillations Level: High School

Sound

Suppose that you hear a clap of thunder 16.2 s after seeing the associated lightning stroke . The speed of sound wave in air is 343 m/s and the speed of light in air is 3.00 x 10 to the eighth power m/s . How far are you from the lightning stroke ?



1738

Physics Waves And Oscillations Level: High School

Stationary wave

A circus performer stretched s tightrope between two towers . He strike one end of the rope and sends a wave along it toward to the other tower . He notes that it takes the wave 0.800 s to reach the opposite tower 20.0 m away . If a 1-m length of the rope has a mass of 0.350 kg . Find tension in the tightrope .



1737

Physics Waves And Oscillations Level: High School

If the frequency of oscillation of the wave emitted by an FM radio station is 88.0 MHz . determine ,

a) The wave’s period of vibration

b) Its wavelength .(Radio wave travels at the speed of light)




1732

Physics Waves And Oscillations Level: High School

A man enters a toll tower , needing to know its height . He notes that a long pendulum extends from the ceiling almost to the floor and that its period is 15.5 s .

a) How tall is the tower ?

b) If this pendulum is taken to the moon where the free-fall acceleration is 1.67 m/s squared , What is the period there ?




1731

Physics Waves And Oscillations Level: High School

Simple harmonic motion

A sample harmonic oscillator has a total energy E .

a) Determine the kinetic and potential energies when the displacement is one-half the amplitude

b) For what value of the displacement does the kinetic energy equal the potential energy ?




1729

Physics Waves And Oscillations Level: High School

A load of 50 N attached to a spring hanging vertically stretches the spring 5.0 cm . The spring is now placed horizontally on a table and stretched 11 cm .

a) What force is required to stretch the spring by that amount ?

b) Plot a graph of force (on the y-axis) versus spring displacement from the equilibrium position along the x-axis .




1716

Physics Waves And Oscillations Level: High School

For lunch you and your friends decide to stop at the nearest deli and have a sandwich made fresh for you with 0.350 kg of turkey . The slices of turkey are weighed on a plate of mass 0.460 kg placed atop a vertical spring of negligible mass and force constant of 267 N/m . The slices of turkey are dropped on the plate all at the same time from a height of 0.350 m . They make a totally inelastic collision with the plate and set the scale vertical simple harmonic motion (SHM) . You may assume that the collision time is extremely small .

a) What is the amplitude of oscillations A of the scale after the slices of turkey land on the plate ?

b) What is the angular frequency of the oscillation ?

c) What is the period of oscillation T of the scale ?




1713

Physics Waves And Oscillations Level: High School

A fisherman notices notice that his boat is moving up and down periodically, owing to wave on the surface of the water . It takes a time of 2.10 s for the boat to travel from its highest point to its lowest , a total distance of 0.600 m . The fisherman sees that the wave crests are spaced a horizontal distance of 6.24 m apart. a) How fast are the wave traveling ? b) What is the amplitude A of each wave ? c) What is the angular frequency of the wave ? d) What is the angular wave number of the wave ? e) What is the displacement of the wave at X = 4.00 x 10^-2 m , and t = 4.70 s ?



1677

Physics Waves And Oscillations Level: High School

Which one of these instruments produces the highest pitch sound

a) piccolo

b) flute

c) tuba

piccolo has the highest pitch



1676

Physics Waves And Oscillations Level: High School

A wave has a wavelength of ½ meter and a frequency of 680 hz . what is the velocity of this wave

a) 320 m/s

b) 340 m/s

c) 680 m/s




1675

Physics Waves And Oscillations Level: High School

What is the primary difference between x-rays and visible lights ?

a) one is wave and the other is a photon

b) x-rays are not electromagnetic waves

c) light is not an electromagnetic wave

d) they have different frequencies

they have different frequencies



1673

Physics Waves And Oscillations Level: High School

Which oscillates more time in a minute ?

a)100 hz

b)300 hz

c) depends up on the size of the object

300 hz , means more vibrations per unit time .



1672

Physics Waves And Oscillations Level: High School

You hear a musician playing a series of notes of increasing frequency . As the frequency increases , the wave speed .

a) decrease

b) stays the same




1671

Physics Waves And Oscillations Level: High School

What type of wave is sound ?

a) transverse

b) compression

c) amplitude

Sound is compression wave .

Displaying 421-435 of 480 results.