# When a tuning fork of unknown frequency is sounded simultaneously with a 512 Hz tuning fork, 20 beats are heard in 4.0 seconds. What are the possible frequencies of the unknown tuning fork?

7,356 questions, page 26-
## Physics

How do you calculate the phase constant in degrees given amplitude and frequency?

*asked by Me on December 7, 2011* -
## physics help please

What are the small-amplitude period and frequency of a 10.0 m long pendulum?

*asked by John on November 7, 2011* -
## Physics

How is time peroid the reciprocal of frequency? Plz explain

*asked by Pakistan on October 1, 2017* -
## science

The product of frequency and wavelength of a sound wave is equal to its

*asked by Anonymous on November 29, 2017* -
## Chemistry

A radio wave has a frequency of 3.6 x 10^10 Hz. What is the energy (in J) of one photon of this radiation?

*asked by Anonymous on October 19, 2012* -
## Science

Explain the relationship between visible light spectra and frequency.

*asked by Marie on December 1, 2017* -
## science

Explain how amplitude and frequency are related to the energy of wave?

*asked by Dj on February 9, 2008* -
## Biology

How do you explain the relationships between allele position and crossover frequency?

*asked by Meli on February 12, 2008* -
## Physics

What is the speed of an electromagnetic wave that has a frequency of 7.8 x 10^6 Hz? How would I solve this problem?

*asked by Olivia on September 9, 2008* -
## Science

What is the wavelength and the frequency of a 50-MeV gamma ray photon.

*asked by Brann on October 8, 2011* -
## Physics

If velocity of wave of 0.15m/s and the frequency of 20HZ,what is the wavelength?

*asked by Musa on December 31, 2012* -
## Physics

In order to stay in phase, do two waves need to have the same frequency? The same amplitude?

*asked by Akhmed on April 14, 2018* -
## physics

what is the frequency of a citizen's band (CB) radio which has a wavelength of 11.5 meters ?

*asked by Ayawari Promise +2347068654055 on February 12, 2013* -
## physics

the tension in the wire is decreased by 19%. The percentage decrease in the frequency will be?

*asked by sagar patil on April 22, 2011* -
## STATISTICS

Can a frequency distribution have overlapping classes? Sometimes No Yes Can't determine. I need more information.

*asked by Jake on June 7, 2010* -
## C s s oberkom

Find the frequency and period of a spring that makses 60 revolutions in a 10 second

*asked by Favour on January 14, 2016* -
## science

true or false: The frequency of a water wave gives us its height.

*asked by Sela on September 12, 2010* -
## Physical Science

What is the frequency of a photon of blue light, if it has a wavelength of 440 nm?

*asked by mel on March 2, 2012* -
## chemistry

A radio wave has a frequency of 3.6 * 10 10 Hz. What is the energy of one photon of this radiation? thank you.

*asked by Brittany on December 2, 2009* -
## Trig

Determine the frequency of y = 2 - 3 cos 10x. (nearest tenth) Please help

*asked by Kay on December 31, 2010* -
## Physics

What is the speed of a wave whose frequency is 9.00Hz and wavelength is 0.654m?

*asked by Alex on April 12, 2012* -
## Physical Science

What is the speed of a photon of red light, if its frequency is 4.3 x 1014 Hz?

*asked by mel on March 2, 2012* -
## Phys

What is the speed of a wave whose frequency is 9.00Hz and wavelength is 0.654 m?

*asked by Jason on April 12, 2012* -
## Statistics

Can a frequency distribution have overlapping classes? Sometimes No Yes Can't determine. I need more information

*asked by Jacob on June 16, 2010* -
## Physical Science

What is the frequency of a photon of blue light, if it has a wavelength of 440 nm?

*asked by mel on March 2, 2012* -
## Electrical Engineering

At what frequency is a 0.0001 uF capacitor operating if its reactance is 45 k ohm?

*asked by Jay on April 4, 2010* -
## Science

If the frequency of middle-C is 44Hertz, what is the wavelength of the sound in centimeters?

*asked by Tari on September 30, 2016* -
## Statistics

Can a frequency distribution have overlapping classes? Sometimes No Yes Can't determine. I need more information

*asked by Jacob on June 16, 2010* -
## physics

The period of the musical node E0 is 4.85 × 10-2 seconds. What is the frequency of this note?

*asked by Amber on April 19, 2013* -
## PHYSICS

A bicycle tire is 68 cm in diameter. what frequency does it have if it travels at 8m/ sec?

*asked by blabla on September 9, 2015* -
## Physics

The Frequency Of an Electromagnetic Wave Is 6x(10x16) What Is IT wavelength In air..?

*asked by Anonymous on April 19, 2013* -
## Chemistry

If you have light that has a frequency of 2.88 x 10 to -9 power Hz, what is the wavelength? I don't know how to do this and what formula to use.

*asked by Jessica on September 30, 2015* -
## Physics

What is the frequency of an electromagnetic wave if it has a wavelength of 1.4 km? The speed of light is 3 × 10 8 m

*asked by Angel on March 27, 2012* -
## physics

The wavelength of yellow sodium light is 589 nm. What is its frequency? 1 Hz

*asked by Anonymous on May 13, 2010* -
## Statistics

Negative and positive deviations occur with the _______ frequency

*asked by Nichole on May 7, 2012* -
## Chemistry

A certain shade of blue had a frequency of 1.01*10^-4 Hz. What is the energy of exactly one photon of this light?

*asked by bert on March 20, 2011* -
## Telecommunication 2.

What is the frequency of a citizen's band(CB)radio which has a wavelength of 11.5meters?

*asked by Micheal Fabia on April 6, 2015* -
## Statistics

Construct a frequency distribution for 100 employees using intervals of 0-4, 4-8, 8-12, 12-16, 16-20.

*asked by Bryant on January 26, 2010* -
## statistics

what is the mean for the population of scrores shown in the frequency distribution table? X f 5 1 4 2 3 3 2 4 1 2

*asked by Anonymous on October 20, 2010* -
## Chemistry

What is the frequency of light that is composed of photons that each has an energy of 5.20 × 10−25 J -Do I divide this by 3.00 X 10^8

*asked by Rebbeca on November 1, 2016* -
## physics

I have the energy and frequency of a light source and I need the wavelength and colour. What do I do?

*asked by Amanda on March 27, 2009* -
## chemistry

What is the wavelength of radiation that has a frequency of 6.912 × 10^14 s−1? and does the s-1 make a difference? Thank you!

*asked by Jazmin on October 31, 2010* -
## science

Whar are two longest wavelength in frequency 1kghz and 200kghz

*asked by aman on August 8, 2015* -
## physics

if the velocity of wave is 0.15m/s and the frequency is 20Hz, what is the wavelength?

*asked by Peterson on June 25, 2017* -
## physics

a particle a of mass 2kg and particle b of mass 1kg are connected by alight elastic string c, and initially held at rest 0.9m apart on a smooth horizontal table with the string in tension. they are then simultaneously released . the string releases 12j of

*asked by isaac on July 7, 2013* -
## Physics

A cannon shoots a shell straight up. It reaches its maximum height, 1,051 feet, and splits into two pieces, one weighing 2 lb and the other 4 lb. The two pieces are observed to strike the ground simultaneously. The 4 lb piece hist the ground 1,608 feet

*asked by Charlie on March 29, 2008* -
## Physics

A cannon shoots a shell straight up. It reaches its maximum height, 1,051 feet, and splits into two pieces, one weighing 2 lb and the other 4 lb. The two pieces are observed to strike the ground simultaneously. The 4 lb piece hist the ground 1,608 feet

*asked by Charlie on March 29, 2008* -
## Genetics

Hi, I really need help in how to approach this question: A species of tiny antelope, known as the zephyr, has an XY system of sex determination, similar to mammals. Zephyr males have small antlers and females do not. The antlers can be two pronged (2-pr)

*asked by Steven on February 6, 2011* -
## physics

Two blocks with masses m1 = 1.4 kg and m2 = 3.6 kg are at rest on a frictionless surface with a compressed spring between them. The spring is initially compressed by 60.0 cm and has negligible mass. When both blocks are released simultaneously and the

*asked by anonymus on August 30, 2018* -
## physics

wo blocks with masses m1 = 1.4 kg and m2 = 3.6 kg are at rest on a frictionless surface with a compressed spring between them. The spring is initially compressed by 60.0 cm and has negligible mass. When both blocks are released simultaneously and the

*asked by anonymus on August 30, 2018* -
## Chemistry

Cadmium and a solution of cadmium(II) nitrate are used with tin and a solution of tin(II) nitrate to construct a galvanic cell. 1) The reaction run initially at standard state with 100-mL samples of each solution is allowed to proceed until 8.0 g of tin

*asked by chamy on April 29, 2012* -
## geometrY

See the last picture at the bottom of this web page (for a pic of this exact problem). Using ratios, Tree height = T 15/66 = 6.33/T 15T = 512.73 T = 34.182 T = 34.182 when getting this answer from my question: to estimate the height of a tree, Dave stands

*asked by shannon on February 28, 2011* -
## CHemistry....Please help

1.SOLUBILITY: At 25C, the molar solubility of calcium phosphate in water is 1.1*10^{-7}M. Calculate the solubility in grams per liter. I m not sure how to convert M to g/L MOLAR MASS OF COLLIGATIVE PROPERTIES: 2.tert-Butyl alcohol is a solvent with a Kf of

*asked by Saira on January 24, 2009* -
## PHYSICS PLLZ HELP

1- wave velocity is related to a- period b-wavelength c-amplitude d-all of these 2- wave amplitude is related to a- wave velocity b- frequency c- energy d-wave length 3-which of the following radiation has te smallest frequency? a- infrared b- visible c-

*asked by FRANK on April 14, 2009* -
## Physics

Both drawings show the same square, each of which has a side of length L=0.75 m. An observer O is stationed at one corner of each square. Two loudspeakers are locate at corners of the square, as in either drawing 1 or drawing 2. The speakers produce the

*asked by Vivien on July 9, 2013* -
## discrete math

Q6:What if the bookshelf is circular, that means you cannot choose the first and last books simultaneously? Count the number of ways to choose 6 books out of 20 books on a circular bookshelf such that no two adjacent books are selected.

*asked by akash on May 2, 2017* -
## discrete math

Q6:What if the bookshelf is circular, that means you cannot choose the first and last books simultaneously? Count the number of ways to choose 6 books out of 20 books on a circular bookshelf such that no two adjacent books are selected.

*asked by akash on May 2, 2017* -
## discrete math

Q6:What if the bookshelf is circular, that means you cannot choose the first and last books simultaneously? Count the number of ways to choose 6 books out of 20 books on a circular bookshelf such that no two adjacent books are selected.

*asked by akash on May 1, 2017* -
## math

Two planes leave simultaneously from Chicago's O'Hare Airport, one flying due north and the other due east. The northbound plane is flying 50 miles per hour faster than the eastbound plane. After 3 hours the planes are 2840 miles apart. Find the speed of

*asked by Anonymous on February 4, 2019* -
## Physics

You have a mass of 2 kg attached to a spring with a spring constant 18 N/m. The mass is at rest at the equilibrium position. At time t=0 you hit the object with a hammer. This blow instantaneously gives the object a velocity of 3 m/s. The motion (after the

*asked by Jessica on November 12, 2007* -
## math

I need to write a multiplication or division equation with a variable for the unknown for this problem: Maddie plants 3 seeds in each of 15 plots.

*asked by stephanie on November 13, 2012* -
## chemistry

The solubility of borax is directly proportional to temperature. Therefore, the sign of H is A. negative B. positive C. unknown with the given information is the answer b?

*asked by J on June 24, 2010* -
## math,algerbra

find circumference and area of circle use 3.14 for unknown round to nearest tenths. 2) r=11.5 3)d=3.5 show steps to solve

*asked by Anonymous on December 6, 2012* -
## science 6 class

Explain how could use a spring,a ruler,some standard masses and some graph paper to find the weight of an unknown object.Explain how could use a spring,a ruler,some standard masses and some graph paper to find the weight of an unknown object.

*asked by Anonymous on January 29, 2018* -
## science

if 1 liter of water is 100 degrees celsius if he has 2 liters what would be the boiling point be would it be higher lower or the same or be unknown

*asked by Anonymous on November 27, 2011* -
## science

Explain how could use a spring,a ruler,some standard masses and some graph paper to find the weight of an unknown object.

*asked by syed on December 7, 2011* -
## physics

The gravitational field strength of an unknown planet is 15.5 N/kg on its surface. Calculate the value of g if the planets mass and radius were both doubled.

*asked by grey on June 6, 2014* -
## Science

Explain how you could use a spring, a ruler, some standard masses,and some graph paper to find the weight of an unknown object.

*asked by Abdullah on October 25, 2018* -
## chemistry

An unknown weak monprotic acid with the general formula HA has a Ka=5.5 x 10^-7. what is the value of the equilibrium constant that describes the following reaction? A- +H2O = HA +OH-

*asked by Stacey on November 15, 2010* -
## Chemistry

Can someone explain to me what the calorimetry equation - q=(m)(ΔT)(Cp) means exactly, in your own words, and how identifying an unknown metal relates to every day life? thanks

*asked by Kate on October 13, 2010* -
## Math

In how many different ways can the top eight new indie bands be ranked on a top eight list? The top hit song for each of the eight bands will compete to receive monetary awards of $1000, $500 and $250, respectively. In how many ways can the awards be given

*asked by Jen on July 29, 2011* -
## math

2. A candy machine has 10 grape, 6 green apple, and 16 mango gumballs. What is the probability of selecting a grape and a mango gumball as fraction in simplest form and a percent? P(A and B) = P (A) * P (B) 10/32 * 16/32 = 80/512 = 5/32 simplest form

*asked by May someone please check my work and answer ASAP? on May 8, 2016* -
## Physics

What current would flow in an ordinary 115 V household circuit, if a 1430 W hair drier and a 1000 W microwave oven were operating simultaneously on this line?How much current would the hair drier and microwave from the previous question draw, if they were

*asked by Joan on March 13, 2011* -
## math age problem

four years agoslyvia was two thirds as old as alex was then. four years from now, she will be four fifths as old as alex will be. how old are sylvia and alex now? Let S be SylVia's current age. Let A be Alex's current age. You have two equations to be

*asked by plz help on April 22, 2007* -
## physics ..PLEASE HELP ASSIGN DUE SOON :(

Forces of 11.1N north, 19.9N east, and 14.0N south are simultaneously applied to a 3.62kg mass as it rests on an air table. What is the magnitude of its acceleration? I already did this part and i got 5.56 m/s^2 BUT PLEASE HELP ME WITH part b!! b)What is

*asked by Angie on October 31, 2012* -
## Physics

A potter's wheel rotates with an angular frequency of 1.54 rad/s. What is its period?

*asked by Kate on June 12, 2012* -
## Science >.<

if a wave is traveling at 60cm/second and has a wavelength of 15cm what is the frequency? Please explaine

*asked by Unknown on October 31, 2013* -
## physics

A Foucault pendulum is observed to swing back-and-forth once every 20 seconds. What is its frequency?

*asked by nor on March 22, 2018* -
## Math

if a note has a frequency of 220 hz find the frequencies of the notes one two and three octaves

*asked by Chelsea on April 26, 2017* -
## physics

please help me i don't know the answer. What is the mathematical relationship between frequency and wavelength for an EM wave?

*asked by Jessie on January 12, 2012* -
## Physics

In the photoelectric effect, what happens to the stopping voltage when the light frequency is decreased?

*asked by John on June 11, 2011* -
## physics

what is the speed of a sound wave if its frequency s 160 hertz and its wavelength is 2.2m?

*asked by aatqa on January 6, 2012* -
## statistics

Construct a frequency distribution table to organize the following set of data: 44 36 38 40 41 36 39 43 43 35 44 35 43 37 44 37 38 38 40 36

*asked by Marcia on February 2, 2012* -
## Math

Construct a grouped frequency distribution for the following 28 scores using a class width of 4: 64 63 58 46 52 62 47 49 56 47 43 41 45 51 60 62 51 61 50 55 56 53 54 58 48 48 58 46 How do I do this?

*asked by Jen on October 10, 2011* -
## math

Construct a frequency polygon distribution using the class limits shown below. 80, 99, 77, 67, 93, 70, 76, 86, 79, 71

*asked by ed on November 17, 2012* -
## Physics

For a pendulum that completes fifteen complete swings in 34.8 seconds, how much is the frequency?

*asked by Lozzzz on March 10, 2017* -
## Physics 2

the microwave protion of the spectrum has wavelengths ranging from 1 mm to 1 m. find the corresponding frequency?

*asked by seanmarch58 on July 27, 2014* -
## Chemistry

What is the frequency of the photons emitted by hydrogen atoms when they undergo transition from n=4 to n=3?

*asked by Terrill on November 14, 2015* -
## physics

In a CD, the characteristic that is given in binary is the wave of which of the following? A) amplitude B) None of these.C) quality.D) speed.E) frequency.

*asked by Jim on April 30, 2012* -
## MATH

Construct a grouped frequency distribution for the following 28 scores using a class width of 4: 64 63 58 46 52 62 47 49 56 47 43 41 45 51 60 62 51 61 50 55 56 53 54 58 48 48 58 46

*asked by Jen on October 9, 2011* -
## Physics

Does the speed of sound in air depend on the frequency of the wave? V=[(gamma.RT)/M]^(1/2)

*asked by Anonymous on July 12, 2017* -
## Math

Construct a grouped frequency distribution for the following 28 scores using a class width of 4: 64 63 58 46 52 62 47 49 56 47 43 41 45 51 60 62 51 61 50 55 56 53 54 58 48 48 58 46

*asked by Jen on October 9, 2011* -
## science

Find the frequency and wavelength of a 50-MeV gamma-ray photon.

*asked by Sheryl on October 9, 2011* -
## Algebra 2

What is the frequency of the function f(x)? f(x)=−2sin(x/4)+3 Express the answer in fraction form. would is be (x/4)?

*asked by sammiexo on June 15, 2017* -
## stats

find standard deviation for this problem daily precip- frequency-31,1,0,2,0,1 0.oo-0.49 0.50-0.99 1.00-1.49 1.50-1.99 2.00-2.29 2.50-2.99

*asked by ebony on May 8, 2008* -
## physics

What is the wavelength of the higher frequency limit (18 megahertz) in dry air at 0 C?

*asked by Alyson on October 15, 2009* -
## MATH

Construct a frequency distribution table to organize the following set of data: 16 23 24 23 24 20 15 16 21 15 16 19 17 15 23 16 18 19 20 19

*asked by Jen on October 9, 2011* -
## Chemistry Physics

What is the wavelength of an electromagnetic wave with frequency 50.0 MHz? Am I starting this problem like this? 3.00*10^8/50*10^6 =6*10^12

*asked by Ben on November 24, 2014* -
## Math Physics

What is the wavelength of an electromagnetic wave with frequency 50.0 MHz? Am I starting this problem like this? 3.00*10^8/50*10^6 =6*10^12

*asked by Ben on November 24, 2014* -
## Physics

if the frequency of a particular electromagnetic wave is 4 x 10^14 hertz, what is its wavelength of the radiation in nanometers (nm)?

*asked by RAHRAH. on March 29, 2011*