Discover the Surprising Power of Water: Tap vs. Fire Hose vs. Pressure Washer

AI Thread Summary
The discussion explores the differences in water flow and pressure between a tap, a fire hose, and a pressure washer. Users are encouraged to estimate the diameter of the water streams and the volume of water moved per second to calculate the speed of the water. By applying the concepts of kinetic energy and power, participants can derive meaningful comparisons between the three sources. The conversation emphasizes the importance of reasonable estimates for accurate calculations. Understanding these differences can highlight the surprising power of water in various applications.
muaythai00
Messages
1
Reaction score
0
Okay, so I don ' t have any real specs but i just want to know how big is the difference between water from tap versus the one from fire hose versus the pressure washer?
 
Physics news on Phys.org
You can get started on this calculation on your own. Make reasonable estimates of the diameter of the stream and how much water is moved per second; from that you can get the speed of the water in the stream. Now you can use the definitions of kinetic energy and power to get answers about as good as your original estimates.
 

Thread '1:1 versus 2:1 Mechanical Advantage debate'

The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...
View full post »

Thread 'Newton's first law?'

Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?
View full post »
Thread 'Beam on an inclined plane'

Thread 'Beam on an inclined plane'

Hello! I have a question regarding a beam on an inclined plane. I was considering a beam resting on two supports attached to an inclined plane. I was almost sure that the lower support must be more loaded. My imagination about this problem is shown in the picture below. Here is how I wrote the condition of equilibrium forces: $$ \begin{cases} F_{g\parallel}=F_{t1}+F_{t2}, \\ F_{g\perp}=F_{r1}+F_{r2} \end{cases}. $$ On the other hand...
View full post »

Similar threads

I Find Best Water Nozzle Type & Pressure for Longest Distance
Replies
32
Views
9K
I Filling a pool with the hose end above or in the water
Replies
11
Views
3K
Hydraulic Losses Through a Pipe
Replies
1
Views
2K
Force of pressurized water exiting a hose or pipe?
Replies
20
Views
10K
Pressure Washer, water properties exiting nozzle
Replies
1
Views
4K
Maximum height for water from a fire hose
Replies
4
Views
4K
Which Water Tank Piston Requires More Force?
Replies
6
Views
3K
Effect of ambient pressure on Newton cooling (water)
Replies
2
Views
1K
Fire Hose Power Output, Given Height and Radius of Hose
Replies
8
Views
2K
Why do bubbles of air in water move up?
Replies
13
Views
6K

Hot Threads

Recent Insights

Back
Top