52 Answered Questions for the topic frequency

Frequency Physics Wave

09/11/20

#### Need Help With This Physics 3 Question

1. You have an incident wave traveling to the left, 𝑦((𝑥, 𝑡) = −𝐴 ⋅ cos(𝑘𝑥 + 𝜔𝑡), and a reflected wave traveling to the right, 𝑦-(𝑥, 𝑡) = 𝐴 ⋅ cos(𝑘𝑥 − 𝜔𝑡), on a string that is fixed at both ends.... more

06/05/20

#### Are radio waves and sound the same?

So the electromagnetic spectrum: radio waves, micro waves, infrared rays, visible light, ultra violet rays, x rays, gamma rays, cosmic rays. Now visible range is 390 to 700 nanometers, beyond 700... more
Frequency Chemistry Chem Waves

12/09/19

#### Frequency and waves

WEGT( Hank-FM) operates at a radio frequency of 99.9MHza) what is the wavelength of this radiation (hint:1MHz= 10^6Hz)b) What is the energy of the radio frequency in the problem above in kJ?
Frequency Thermodynamics Waves

12/07/19

#### Frequency and wavelengths

WEGT( Hank-FM) operates at a radio frequency of 99.9MHz a) what is the wavelength of this radiation (hint:1MHz= 10^6Hz)b) What is the energy of the radio frequency in the problem above in kJ?

06/24/19

#### Are there any tuning differences between the C# Major Scale and Db Major Scale?

Are there any tuning differences between the C# Major Scale and Db Major Scale?

06/01/19

#### Speed of playing notes in different octaves?

Is it common for pieces to have lower notes played slower? Do instruments with lower registers typically play slower? I ask because notes in lower octaves are closer together in frequency. For... more

05/18/19

#### Water wave frequency

A water wave vibrates up and down four times each second, the distance between two successive crests is 5 meters, and the height from the lowest part to the highest part of the wave is 2... more
Frequency Chemistry

09/25/18

#### Frequency of a Photon: Chemistry

Calculate the frequency (in Hz) of a photon emitted during a transition corresponding to the fourth line in the Lyman series (nf = 1) of the hydrogen emission spectrum. (Report your answer to three... more

09/22/18

#### A bicycle tire is 64 cm in diameter. (a) At what frequency f does the tire rotate when the bicycle is traveling at a speed of 40 km/s?

A bicycle tire is 64 cm in diameter. (a) At what frequency f does the tire rotate when the bicycle is traveling at a speed of 40 km/s? (b) What is the angular frequency ω?

04/09/18

#### Write a sine function that has a midline of 3, an amplitude of 2 and a frequency of π π.

trig function given features
Frequency Physics

03/28/18

#### Find the frequency of a tuning fork that takes...

Find the frequency of a tuning fork that take 1.70 x 10-3 s to complete one oscillation.

03/18/18

#### There's a wishing well, the first wish costs 6 golden coins, the second costs 12, the third costs 24 and so on.

There's a wishing well, the first wish costs 6 golden coins, the second costs 12, the third costs 24 and so on. The total of making three wishes is the sum of the gold spent to make all the wishes,... more
Frequency Math Physics Regents

03/11/18

#### Find the period and speed of the wave:

A periodic wave traveling in a uniform medium has a wavelength of 0.080 meter, an amplitude of 0.040 meter and a frequency of 5.0 Hertz. (a) Determine the period of the wave (b) Calculate the speed... more

12/08/17

#### Trouble with chemistry question??

Here's the question:   Different materials are used in X-ray tubes to produce Xray for different applications. The table lists the frequencies of different materials that might be used in an... more

11/28/17

#### Math homework help

Write an equation of an alternating voltage that has a peak value of 155 V, a frequency of 60Hz and a phase angle of 22°

11/28/17

#### Sine wave help

Find the period and frequency of a sine wave that has an angular velocity of 500 rad/s
Frequency Math Math Help Velocity

11/27/17

#### Sine wave as a function of time

Find the frequency and the angular velocity of a repeating waveform whose period is 1/4s
Frequency Chemistry

10/07/17

#### what is frequency of a photon with an energy of 5.75 x 10^-19

in joules
Frequency Physics

08/30/17

#### Wavelength physics question

Imagine the hydrogen atoms in one of Hubble's distant stars emitting a photon of light at a wavelength of 410.17 nm. If that particular proton were headed directly toward Earth, how much closer to... more
Frequency Physics

08/30/17

#### Frequency question

what frequency is associated with 656.28 nm?
Frequency Physics

08/30/17

#### Frequency question

What frequency is associated with 486.13 nm?

07/31/17

#### the weight of 50N suspend from a spring vibrate vertically with amplitude of 8cm angular frequency(natural frequency) of 1 oscillation\sec

1)stiffness of the spring 2)find maximum velocity 3)find the maximum acceleration fn=1\2pi root of k\m fn= natural frequency w=mg g=9.81
Frequency Physics Velocity Period

03/21/17

#### Period, Frequency, Wavelength and Velocity

James is lying on his body board out in the surf. 12 waves pass him every minute. These waves are about 14m apart from one crest to the next and they rise 2 meters above the normal water level. a)... more

12/15/16

#### Frequency of waves

At the point x = 0 m and time t = 0 s a particle has a displacement of 0.025 m and a positiveparticle velocity. After 5/6 s the particle reaches its maximum positivedisplacement of 0.05 m If the... more
Frequency Chemistry Energy Light

11/08/16

#### Red light has a longer wavelength than blue light. - Answer questions, Explain Please

Red light has a longer wavelength than blue light.   Which of these colors has the higher frequency?   Which of these colors has the higher energy?

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