1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
rodikova [14]
3 years ago
11

above the ground and fired. The water stream from the gun hits the ground a horizontal distance of 7.3 m from the muzzle. Find t

he gauge pressure of the water gun’s reservoir at the instant when the gun is fired. Assume that the speed of the water in the reservoir is zero and that the water flow is steady. Ignore both air resistance and the height difference between the reservoir and the muzzle.
Physics
1 answer:
FromTheMoon [43]3 years ago
5 0

Answer:

P_g=1.1373Mpa

Explanation:

A hand-pumped water gun is held level at a height of 0.75 m, this part miss of the question so now:

h=0.75 m

x=7.3 m

h=\frac{1}{2}*a*t^2

a=g

t=\sqrt{\frac{2*h}{g}}=\sqrt{\frac{2*0.75m}{9.8m/s^2}}

t=0.153s

v=\frac{x}{t}=\frac{7.3m}{0.153s}=47.6m/s

Gauge Pressure can be find

P_g=\frac{1}{2}*1000*v^2

P_g=\frac{1}{2}*1000*(47.69m)^2

P_g=1.1373Mpa

You might be interested in
What will happen when two objects with opposite electric charges are moved closer together?
LenKa [72]
C the objects will repel each other with greater
force
6 0
3 years ago
Read 2 more answers
Are momentum and kinetic energy conserved during an inelastic collision?
nevsk [136]

Energy and momentum are always conserved. Kinetic energy is not conserved in an inelastic collision though. And that is because it is converted to another form of energy

8 0
3 years ago
Why must one use a reference point to determine whether or not an object is in motion
GaryK [48]
Because there's no such thing as "really" moving. 
ALL motion is always relative to something.

Here's an example:
You're sitting in a comfy cushy seat, reading a book and listening
to your .mp3 player, and you're getting drowsy.  It's so warm and
comfortable, your eyes are getting so heavy, finally the book slips
out of your hand, falls into your lap, and you are fast asleep.

-- Relative to you, the book is not moving at all.
-- Relative to the seat, you are not moving at all.
-- Relative to the wall and the window, the seat is not moving at all.
-- But your seat is in a passenger airliner.  Relative to people on the
    ground, you are moving past them at almost 500 miles per hour !
-- Relative to the center of the Earth, the people on the ground are moving
   in a circle at more than 700 miles per hour.  
-- Relative to the center of the Sun, the Earth and everything on it are moving
   in a circle at about 66,700 miles per hour ! 

How fast are they REALLY moving ?
There's no such thing.
It all depends on what reference you're using.

7 0
3 years ago
This diagram shows the process that powers stars. This process is called?
viktelen [127]
The process that powers stars is C)fusion
4 0
3 years ago
Read 2 more answers
What is a force ?????
scoundrel [369]

Answer:

A force is a push or pull upon an object resulting from the objects interaction with another object

7 0
3 years ago
Read 2 more answers
Other questions:
  • An 880n box is pushed across a level floor for a distance of 5.0m with a force of 440n. how much work was done on the box
    12·1 answer
  • What structure is located at the front edge of the retina and has a tooth like appearance?
    15·1 answer
  • If the frequency of wave is 400 Hz and its
    13·1 answer
  • Can someone please arrange the three mediums in order of least to the most density?
    5·1 answer
  • In the nucleus of an atom, two protons are separated by a distance of 10^-13 m. What is the Coloumb force between them? The char
    13·1 answer
  • 3
    9·1 answer
  • If your mass is 60 kg on earth, what would your mass be on the moon?
    14·1 answer
  • How does the electric force between two charged objects change when the
    7·1 answer
  • A spring scale hung from the ceiling stretches by 6.1cm when a 2.0kg mass is hung from it. The 2.0kg mass is removed and replace
    5·1 answer
  • Four students measured the acceleration of gravity. The accepted value for
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!