Physics, 22.02.2020 02:58 ballislifeqw3089
A siren emitting a sound of frequency 1003 Hz moves away from you toward the face of a cliff at a speed of 12.0 m/s. Take the speed of sound in air as 334 m/s. (a) What is the frequency of the sound you hear coming directly from the siren
Answers: 2
would be:
, 
is the speed of sound in the air.
is the speed at which the source moves away from the observer.
is the frequency at the source.
.
. That corresponds to a period of 
.
.
. In the 
away from the observer. It would take an extra 
for the sound to cover that extra distance. 
to the observer.
. (Same as the answer from the formula.)Another question on Physics
Physics, 22.06.2019 01:20
An engineer designs a roller coaster so that a car travels horizontally for 152 ft, then climbs 137 ft at an angle of 34.0° above the horizontal. it then moves 137 ft at an angle of 48.0° below the horizontal. if we take the initial horizontal motion of the car to be along the +x-axis, what is the car's displacement? (give the magnitude of your answer, in ft, to at least four significant figures and give the direction of your answer in degrees counterclockwise from the +x-axis.)
Answers: 1
Physics, 22.06.2019 01:40
In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.
Answers: 1
Physics, 22.06.2019 07:50
Determine the fraction of the magnitude of kinetic energy lost by a neutron (m1 = 1.01 u) when it collides head-on and elastically with a target particle at rest which is 21h (heavy hydrogen, m = 2.01 u).
Answers: 3
Physics, 22.06.2019 15:20
Abag of potato chips contains 2.00 l of air when it is sealed at sea level at a pressure of 1.00 atm and a temperature of 20.0 deg c. what will be the volume of the air in the bag if you take it with you, still sealed, to the mountains where the temperature is 7.00 deg c and atmospheric pressure is 70.0 kpa? assume that the bag behaves like a balloon and that the air in the bag is in thermal equilibrium with the outside air.
Answers: 3
You know the right answer?
A siren emitting a sound of frequency 1003 Hz moves away from you toward the face of a cliff at a sp...
Questions
Mathematics, 25.10.2019 03:43
Mathematics, 25.10.2019 03:43
Mathematics, 25.10.2019 03:43
Social Studies, 25.10.2019 03:43
Mathematics, 25.10.2019 03:43
History, 25.10.2019 03:43
History, 25.10.2019 03:43
Chemistry, 25.10.2019 03:43
Physics, 25.10.2019 03:43
Social Studies, 25.10.2019 03:43
Chemistry, 25.10.2019 03:43
Chemistry, 25.10.2019 03:43
Physics, 25.10.2019 03:43
