subject
Physics, 30.07.2019 10:00 AshlynPlayz45

Apolice car parked on the side of the highway emits a 1200 hz sound that bounces off a vehicle farther down the highway and returns with a frequency of 1250 hz. how fast is the vehicle going?

ansver
Answers: 1

Other questions on the subject: Physics

image
Physics, 21.06.2019 15:00, amy7233
Dry ice is solid carbon dioxide that is used in the transport of food and medicine. dry ice becomes a gas at –78.5°c without becoming a liquid first.
Answers: 3
image
Physics, 21.06.2019 22:00, Angelo1660
Air is held within a frictionless piston-cylinder container, which is oriented vertically. the mass of the piston is 0.45 kg and the cross-sectional area is 0.0030 m2. initially (state 1) the pressure of the gas is sufficient to support the weight of the piston as well as the force exerted by the atmospheric pressure ( 101.32 kpa). the volume occupied by the air within the cylinder in state 1 is 1.00 liter. one end of a spring (with spring constant k = 1000 n/m) is attached to the top of the piston, while the other end of the spring is attached to a stage that can move vertically. initially the spring is undeflected and therefore exerts no force. then the stage is then moved quasistatically downward a distance of 10.0 cm, at which point the system reaches state 2. the piston-cylinder is not insulated; rather it remains in diathermal contact with the surroundings, which are at a constant temperature of 300 k. what is the change of pressure within the container?
Answers: 3
image
Physics, 22.06.2019 14:00, tonytashaqua
Me pl give an example of a collision in real life. use the law of conservation of energy to describe the transfer of momentum. be sure and discuss the momentum before and after the collision occurs. you will need at least 3 sentences to thoroughly answer this question.
Answers: 3
image
Physics, 22.06.2019 17:30, funnybugy16
How does the entropy of steam compare to the entropy of ice?
Answers: 2
You know the right answer?
Apolice car parked on the side of the highway emits a 1200 hz sound that bounces off a vehicle farth...

Questions in other subjects: