As you run toward a source of sound, you perceive the frequency of that sound to

Answers

Answer 1

Answer:

As you run toward a source of sound, you perceive the frequency of that sound to decrease.

Explanation:

Doppler's effect is a principle used to describe the frequency and the intensity of sound and wavelengths of a source and observer with the two possibilities.

(i) Stationary sound source and moving observer.

(ii) Moving sound source and a stationary observer. It is a relative motion.

Consider when the observer is moving towards a source, the frequency of the sound will be higher and when moving away from the source, the frequency will decrease.

Answer 2

Answer:

frequency is the speed of vibration and this determines the pitch of the sound. it is only useful or meaningful for musical sounds. where there is a strongly regular waveform. frequency is measured as the number of wave cycles that occur in one second. the unit that is being measured is (hz)

Related Questions

Find the percentage of the total work lost to friction if 28.7 J of work is put into pushing a block up a ramp resulting in 14.2 J of stored potential energy at the top.
Two shoes each have a mass of 0.1 kg. if the are .15m apart what is the gravitational force between them? G = 6.67 x 10^-11 N (m/kg)^2
Planet 1 has mass 3m and radius r, while planet 2 has mass 4m and radius 2r. they are separated by center-to-center distance 8r. a rock is placed halfway between their centers at point o. it is released from rest. ignore any motion of the planets.Part (a) Derive an expression, in terms of relevant system parameters, for the magnitude of the acceleration a of the rock at the moment it is released Part (b) Calculate the magnitude of the acceleratiom of the rock (in m/s2) the moment it is released, using M=2x10^21 kg and R= 25 x10^6Part (c) The rock is released from rest at point o Derive an expression for the speed v with which the rock crashes into a planet Part (d) Calculate the speed the rock crashes into the planet in m/s
Which state of matter contains particles that move slightly in a fixed posistion
The brightest spot where the light directly hits an object.

A person can jump a maximum horizontal distance (by using a 45◦ projectile angle) of 5 m on Earth. The acceleration of gravity is 9.8 m/s 2 . What would be his maximum range on the Moon, where the free-fall acceleration is g 6 ? Answer in units of m

Answers

Answer:30 m

Explanation:

Given

Maximum Horizontal distance is 5 m on earth

launching angle $=45^(\circ)$

Acceleration due to gravity on earth is $9.8 m/s^2$

Acceleration due to gravity on moon is $(9.8)/(6)=1.63 m/s^2$

Range of projectile is given by

$R=(u^2\sin 2\theta )/(g)$

$R_(earth)=(u^2\sin 2\theta )/(g)=5$ ----1

$R_(moon)=(u^2\sin 2\theta )/((g)/(6))$ -----2

Divide 1 & 2

$(5)/(R_(moon))=(1)/(6)$

$R_(moon)=30 m$

What does it depend on

Answers

Electric force varies directly with the magnitude of each charge, and inversely with the distance between the charges.

but for short....

electrical force depends on the charge and distance

Currently, is our planet an open or closed system?

Answers

Our planet is closed system because there is a limit of how much matter could be exchanged.

Where does the energy that the sun emits come from?

Answers

The energy emitter from the sun comes from the burning of hydrogen gasses (what the entire sun is made of) allowing light and heat energy to be created/escape.

The conductive tissues of the upper leg can be modeled as a 40- cm-long, 12-cm-diameter cylinder of muscle and fat. The resistivities of muscle and fat are 13 Ω m and 25 Ω m, respectively. One person’s upper leg is 82% muscle, 18% fat. What current is measured if a 1.5 V potential difference is applied between the person’s hip and knee?

Answers

Answer:

current = 0.0027 A

Explanation:

the resistivity of upper leg

$\rho = 0.82 (13) + 0.18(25) = 15.16 ohm . m$

Resistance of upper leg

$R = (\rho L)/(A)$

$= (\rho L)/(\pi R^2)$

$= (15.16 * 0.40)/(\pi [(0.12)/(2)]^2)$

= 551.27 ohm

current $i = (V)/(R)$

$current = (1.5)/(551.27)$

current = 0.0027 A

The four terrestrial planets that have solid, rocky surfaces are A. Mars, Venus, Earth, and Jupiter.
B. Mercury, Jupiter, Saturn, and Mars.
C. Mercury, Venus, Jupiter, and Mars.
D. Mercury, Venus, Earth, and Mars

Answers

The four terrestrial planets that hace solid, rocky surfaces are (D.) Mercury, Venus, Earth, and Mars.

Check out pages 804-808 in the Glencoe Earth Science textbook provided by PennFoster. That way you can learn about the answer. :)

Other Questions

Electrons and protons are attracted to each other because of which fundamental force?a. nuclear b. gravitational c. electromagnetic d. attraction-repulsion

Which biogeochemical cycle is relied upon for plant photosynthesis? 1)Phosphorus 2)Nitrogen 3)Carbon 4)Hydrologic

What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has a mass of 0.15kg

Which of the following objects has the greatest gravity?1.you2.the sun3.Earth4.the moon