1. Explain the conditions in which a person can or can’t hear an echo.
2. Which of the following materials would be the least efficient in soundproofing a room: clay tile, plaster, or perforated acoustic ceiling material? Be sure to use your knowledge of the coefficient of absorption in your explanation.
3. Compare and contrast infrasonic and ultrasonic vibrations.
4. Describe the responses of the human ear to sound waves coming from the right side, left side or in phase
Answers: 3
Physics, 22.06.2019 04:10
Time remainin52: 42the chart shows data for a moving object.which conclusion is best supported by the information inthe chart? time (s)velocity (m/s
Answers: 3
Physics, 22.06.2019 05:50
High schoolphysics 5+3 pts a neon light consists of a glass tube with metal wires at each end. when connected to a high-voltage source, the gas glows. if a fly lands on the glass tube, what will most likely happen? a) the fly will not feel a shock because the glass conducts any free electrons back into the gas. b) electrons will flow directly from the metal wires along the glass and shock the fly. c) the fly will not feel a shock because the glass insulates it from the electrons in the gas and the metal. d) electrons that are moving through the gas will be conducted through the glass and shock the fly.
Answers: 3
Physics, 23.06.2019 01:00
Suppose that two objects attract each other with a gravitational force of 16 units. if the distance between the two objects is double, what is the new force of attraction between the two objects?
Answers: 3
Physics, 23.06.2019 01:30
Each line (unit) on the horizontal axis represents: 5 years 10 years 20 years all of the above
Answers: 1
1. Explain the conditions in which a person can or can’t hear an echo.
2. Which of the following ma...
Biology, 04.12.2019 21:31
Mathematics, 04.12.2019 21:31
English, 04.12.2019 21:31
Computers and Technology, 04.12.2019 21:31
History, 04.12.2019 21:31