physics

70-kg man jumps off a raft 2 meter squared moored in a freshwater lake. By how much does the raft rise?

  1. 👍
  2. 👎
  3. 👁
  1. m=70kg(1kg/1000m3)
    =.07m3

    A=2m sq. =4m
    H=V/A

    h=0.07m3/4m2
    =0.018m or 1.8cm

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. 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

  2. chemistry

    If the amount of mercury in a polluted lake is 0.40 ug/mL, what is the total mass of mercury in the lake? (The lake has a surface area of 100 mi squared and an average depth of 25 ft).

  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. phy

    A slab of ice floats on a freshwater lake. What minimum volume must the slab have for a 50.0kg woman to be able to stand on it without getting her feet wet?

  1. science

    The students in a 6th grade class are testing water at different temperatures to measure density. One group gets cold freshwater, one group gets warm freshwater, one group gets cold saltwater, and the last group gets warm

  2. Physics

    A 60.0 kg girl stands up on a stationary floating raft and decides to go into shore. She dives off the 180 kg floating raft with a velocity of 4.0 m/s [W]. Ignore the substantial friction real objects in water experience. a) What

  3. Physics

    Pepe and Alfredo are resting on an offshore raft after a swim. They estimate that 3m separates a trough and an adjacent crest of surface waves on the lake. They count 14 crests that pass by the raft in 20 seconds. Calculate how

  4. physics

    A 72 kg man jumps fro a window 1.5 m above a sidewalk. The acceleration of gravity is 9.81 m/s^2. a) what is his speed just before his feet strike the pavement? Answer in units of m/s. b) If the man jumps with his knees and ankles

  1. Physics

    At the platform diving in the Olympics, a diver jumps from either a 5 meter, 7.5 meter or 10 meter board. Neglecting air resistance, calculate the diver's speed when she hits the water after diving off the 10 m board.

  2. algebra 2

    A skier has decided that on each trip down a slope, she will do 2 more jumps than before. On her first trip she did 6 jumps. Derive the sigma notation that shows how many total jumps she attempts from her fourth trip down the hill

  3. algebra 2 multiple choice HELP

    find f(a), if f(t) = 2t2(squared)-t-2 A. 2(a+t)2(squared)-2t+1-2 B. 2(t+a)2(squared)-2(t+a)-2 C. 2a2(squared)-a-2 D. 4a2(squared)-2a-2 I put (squared) because the two in front of it means it's being squared... please help. thanks!

  4. PHYSICS! I CAN NOT GET

    A group of swimmers is resting in the sun on an off-shore raft. They estimate that 2.5 m separates a trough and an adjacent crest of surface waves on the lake. They count 15 crests that pass by the raft in 15 s. How fast are the

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