Table of Contents
- 1 Can ping pong balls raise sunken ship?
- 2 What happened to the ping pong ball when submerged in hot water Why do you say so?
- 3 How could Titanic be raised?
- 4 What happens when you push a ping pong ball to the bottom of a bucket of water?
- 5 What happens if the ball carries off all the energy?
- 6 How is a ball of mass connected to a frictionless track?
Can ping pong balls raise sunken ship?
The Myth – Ping-pong balls can be used to raise a sunken ship. However, it took far fewer balls than they expected (60,000). In addition, this technique is of dubious legality—if containment of the ping-pong balls were to fail, the ‘rescuer’ would quite probably run afoul of environmental-protection laws.
How many ping pong balls would it take to raise the Titanic?
The Titanic weighed 52,310 tons when it was launched. 1cm3 = 1g of water, so each ping pong ball displaces around 33.5g of water. Total number of balls = 4.75×1010 g / (30.8g/ball) = 1.54×109 or 1.5 billion.
What happened to the ping pong ball when submerged in hot water Why do you say so?
12. A ping-pong ball has been dented . . . so you put it in hot water. Why? The dent is an intrusion into the volume of the ping pong ball, so if you could just get the volume of the ping pong ball (the gas within) to increase, then you could get rid of the dent.
Do ping pong balls sink?
Generally, heavier objects, such as rocks and golf balls, will sink to the bottom because they are heavier than the water that is trying to hold them up. Also, hollow objects, such as ping pong balls, will generally float on top of water.
How could Titanic be raised?
Many schemes have been proposed to raise Titanic, including filling the wreck with ping-pong balls, injecting it with 180,000 tons of Vaseline, or using half a million tons of liquid nitrogen to encase it in an iceberg that would float to the surface.
Why does placing a dented table tennis ball?
Explain why placing a dented table tennis ball in a boiling pot of water is one way to remove a dent in the ball. The boiling water would be the temperature increase. This would increase the volume of the ball which would make the size of the ball get bigger. The increase would get rid of the dent.
What happens when you push a ping pong ball to the bottom of a bucket of water?
A ping pong ball released at the bottom of a gallon bucket rises to the surface quickly but doesn’t shoot out of the water. If the ball is released just below the surface it pops out an inch or two.
Will a tennis ball sink or float?
Tennis balls are hollow and filled with air. The air inside the tennis ball weighs less than the inside of a rock or marble, so the tennis ball floats.
What happens if the ball carries off all the energy?
If the ball carries off all the energy it came in with, the rod must end up with no energy. And, conservation of linear momentum in the y direction (not conserved in the x direction) demands that the speed of the center of mass (COM) of the rod along the rail would be 15 m/s meaning it would not be rotating.
Is the direction of the final velocity of a ball impossible?
The first obvious error in this problem is that the direction and magnitude of the final velocity of the ball is impossible. If the ball carries off all the energy it came in with, the rod must end up with no energy.
How is a ball of mass connected to a frictionless track?
A rod (blue) of length 2m and mass of 1kg can freely pivot about it’s center (orange dot) which is connected to a frictionless track (purple) running in the Y direction. The rod is positioned at 45 degrees to the track, and a ball of mass 1kg travelling at 15 m/sec strikes the rod at 0.5m from the rod’s center.