Physics waves- check answers please

1. In a standing wave, the medium at the tip of a loop is
a) showing destructive interference
b) not moving
c) at the original amplitude of the wave
d) showing constructive interference

my answer: b

2. If a motorcycle is travelling toward an observer the frequency the observer hears is ___ the actual sound made by the motorcycle
a) greater than
b) lower than
c) smaller than
d) the same as

my answer: a

  1. 👍 0
  2. 👎 0
  3. 👁 443

Respond to this Question

First Name

Your Response

Similar Questions

  1. Science--HELP!!

    1. In which of the following situations is a sound wave most likely to travel through air? A) An alarm clock rings in a vacuum. B) A giant star explodes. C) A grasshopper eats a leaf. D) An astronaut uses tools in space. 2. Which

  2. College Physics

    A student of mass M = 82 kg takes a ride in a frictionless loop-the-loop at an amusement park. The radius of the loop-the-loop is R = 15 m. The force due to the seat on the student at the top of the loop-the-loop is FN = 696 N and

  3. Physics

    The wave function of a standing wave is y(x,t)=4.44mmsin[(32.5rad/m)x]sin[(754rad/s)t]. A. For the two traveling waves that make up this standing wave, find the amplitude. B. For the two traveling waves that make up this standing

  4. Science HW - - - check my answers?

    1. Compare the two light waves above. Which wave would produce the brightest light and which wave would have the least energy? a. wave A; wave A b. wave A; wave B c. wave B; wave A d. wave B; wave B 2. Which waves have the longest

  1. Science

    When a wave enters a new medium, slows down, and bends, the wave undergoes A. Reflection. B. Absorption C. Refraction D. Reduction Is the answer C? Thank you

  2. Physics (Mechanics)

    A student of mass M = 62 kg takes a ride in a frictionless loop-the-loop at an amusement park. The radius of the loop-the-loop is R = 19 m. The normal force by the track on the student at the top of the loop-the-loop is N1 = 100 N

  3. Physical Science

    1. A wave has a wavelength of 10 mm and a frequency of 5.0 hertz. What is its speed? A. 50 mm/s B. 50 hertz/s C. 2.0 mm/s D. 0.50 mm/s 2. Which type of mechanical wave needs a source of energy to produce it? A. a transverse wave

  4. Science

    Which of the following affects the speed of sound? A. The amplitude of the wave. B. The frequency of the wave. C. The phase of the medium. D. The wavelength. Is the answer D? Thank you

  1. physics

    A human wave. During sporting events within large, densely packed stadiums, spectators will send a wave (or pulse) around the stadium (Fig. below). As the wave reaches a group of spectators, they stand with a cheer and then sit.

  2. Science

    Which of the following factors determines the loudness of a sound? A. Frequency of the sound wave. B. Amplitude of the sound wave. C. The temperature of the medium. D. The density of the medium. Is the answer B? Im getting

  3. Physics

    A pilot, whose mass is 91.0 kg, makes a loop-the-loop in a fast jet. Assume that the jet maintains a constant speed of 125 m/s and that the radius of the loop-the-loop is 0.478 km. What is the apparent weight that the pilot feels

  4. physics

    If a standing wave with 10 antinodes occurs at a frequency of 44.1 Hz, at what frequency would you look for the n = 2 standing wave?

You can view more similar questions or ask a new question.