subject
Physics, 28.08.2019 17:30 littlebrain2672

The predominant frequency of a certain fire truck’s siren is 1350hz when at rest. what frequency do you detect if you move with a speed of 30.0 m /s (a) toward the fire truck, and (b) away from it?

ansver
Answers: 2

Another question on Physics

question
Physics, 22.06.2019 05:50
Acylinder with a movable piston contains 11.7 moles of a monatomic ideal gas at a pressure of 1.32×10^5 pa. the gas is initially at a temperature of 300 k. an electric heater adds 43200 j of energy into the gas while the piston moves in such a way that the pressure remains constant. cp=20.79 j k^−1 mol^−1 for a monatomic ideal gas, and that the number of gas molecules is equal to avogadro's number (6.022×10^23) times the number of moles of the gas. (a) what is the temperature of the gas after the energy is added? (b) what is the change in volume of the gas? (c) how much work is done by the gas during this process?
Answers: 3
question
Physics, 22.06.2019 10:50
If jerome is swinging on a rope and transferring energy from gravitational potential energy to kinetic energy, is being done.
Answers: 3
question
Physics, 22.06.2019 11:00
The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.
Answers: 3
question
Physics, 22.06.2019 18:30
Asled is being held at rest on a slope that makes an angle θ with the horizontal. after the sled is released, it slidesa distance d1 down the slope and then covers the distance d2 alongthe horizontal terrain before stopping. find the coefficient ofkinetic friction μk between the sled and the ground, assumingthat it is constant throughout the trip. find the coefficient of kinetic frictionμk. express your answer in terms of someor all of the variables d1, d2, and θ.
Answers: 1
You know the right answer?
The predominant frequency of a certain fire truck’s siren is 1350hz when at rest. what frequency do...
Questions
question
SAT, 11.11.2020 18:20
question
Chemistry, 11.11.2020 18:20
question
Mathematics, 11.11.2020 18:20
question
History, 11.11.2020 18:20
question
English, 11.11.2020 18:20
question
Mathematics, 11.11.2020 18:20
question
Mathematics, 11.11.2020 18:20
Questions on the website: 13722363