physics

A group of swimmers is resting in the sun on an off shore raft. They estimate that 1.1m separates a trough and an adjacent crest of surface waves on the lake. In addition, they count 23 crests that pass by the raft in 15.7seconds.
What is the frequency of these surface waves?
How fast are the waves moving?

  1. 👍 0
  2. 👎 0
  3. 👁 195

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    On a hot summer day in the state of Washington while kayaking, I saw several swimmers jump from a railroad bridge into the Snohomish River below. The swimmers stepped off the bridge, and I estimated that they hit the water 1.5s

  2. Physics

    A woman on a bridge 75.0m high sees a raft floating at a constant speed on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 7.00m more to travel before passing

  3. Physics

    A woman on a bridge 90.0m high sees a raft floating at a constant sped on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 6.00m more to travel before passing

  4. PHYSICS

    Two lifeguards pull on ropes attached to a raft. If they pull in the same direction, the raft experiences a net external force of 332 N to the right. If they pull in opposite directions, the raft experiences a net external force

  1. Math

    A high school swim team has 12 new female swimmers and 30 were turning female swimmers each practice team must have the same number of new and returning female swimmers. What is the greatest number practice teams to coach can make

  2. Physics

    Huck Finn walks at a speed of 0.60 m/s across his raft (that is, he walks perpendicular to the raft’s motion relative to the shore). The raft is traveling down the Mississippi River at a speed of 2.20 m/s relative to the river

  3. Physics

    A woman on a bridge 75.0m high sees a raft floating at a constant sped on the river below. She drops a stone from rest in an attempt to hit the raft. The stone is released when the raft has 7.00m more to travel before passing

  4. ALG/TRIG

    Lost is an understatement..please help me understand this. Orbits and Distance Johannes Kepler (1571–1630)discovered a relationship between a planet’s distance D from the sun and the time T it takes to orbit the sun. This

  1. Physics

    A 220 kg wooden raft sits on a lake. When a 75 kg man stands on the raft, it sinks 4 cm deeper into the water. When he steps off, the raft vibrates for a while. a) What is the frequency of the raft? b) What is the total energy of

  2. Maths

    The probability that a student is not swimmer is 1/5.find the probability that out of 5 students (1) at least 4 are swimmers and (2)at most 3 are swimmers

  3. PLEASE CHECK! ELA

    Which word group is a complete sentence? A- Almost all the swimmers following the rules. B- Never had any interesting activities. C- After Chris finished chemistry experiment. D- Only two of the chairs matched the table. My guess

  4. Physics

    Here's the question: A 55 kg swimmer is standing on a stationary 235 kg floating raft. The swimmer then runs off the raft horizontally with a velocity of +4.3 m/s relative to the shore. Find the recoil velocity that the raft would

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