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
Lemur [1.5K]
3 years ago
15

A garden hose with an internal diameter of 2.9 cm is connected to a (stationary) lawn sprinkler that consists merely of a contai

ner with 24 holes, each 0.36 cm in diameter. If the water in the hose has a speed of 0.98 m/s, at what speed does it leave the sprinkler holes?
Physics
1 answer:
Alecsey [184]3 years ago
3 0

Answer:

Water leaves the holes with a speed of 2.65 m/sec    

Explanation:

It is given internal diameter of garden hose = 2.9 cm

So internal radius r_1=\frac{2.9}{2}=1.45cm

Number of holes n = 24

Diameter of holes d = 0.36 cm

So radius of holes r_2=\frac{0.36}{2}=0.18cm

Velocity of water in hose  v_1=0.98m/sec

According to continuity equation

A_1v_1=nA_2v_2

\pi r_1^2\times 0.98=24\times \pi r_2^2\times \times v_2

1.45^2\times 0.98=24\times  0.18^2\times \times v_2

v_2=2.65m/sec

Therefore water leaves the holes with a speed of 2.65 m/sec

You might be interested in
Kinetic friction acts on a baseball player sliding into first base. Will the player's velocity change?
Law Incorporation [45]
Yes, his velocity will decrease the further he slides.
7 0
3 years ago
The car starts from a room with a constant acceleration of 5 ms-2. What path will it pass in 6 seconds and what speed will it re
Kobotan [32]

Answer: The speed will be  30 m/s .

Explanation:

Given: Initial velocity of the car: u = 0 m/s

Constant Acceleration: a = 5 m/s²

Time: t= 6 seconds

To find: Final velocity(v)

Formula:  v = u+at

Substitute values in the formula, we get

v=  0+(5)(6) m/s

⇒ v= 30 m/s

i.e. Final velocity = 30 m/s

Hence, the speed will be 30 m/s .

4 0
3 years ago
Which statement correctly describes why a compound is a pure substance?
ad-work [718]

Explanation:

A compound is a pure substance composed of two or more different atoms chemically bonded to one another. A compound can be destroyed by chemical means. It might be broken down into simpler compounds, into its elements or a combination of the two.

6 0
3 years ago
To raise an arm upward, the muscle on one side of it contracts. What happens to the muscle on the opposite side of the arm?
enyata [817]

Answer:

It relaxes

Explanation:

I took the test I hope it helps

5 0
3 years ago
Read 2 more answers
Sodium chloride and calcium carbonate combine to form sodium carbonate and calcium chloride in the reversible reaction.
lidiya [134]

Answer:

I think is Number 2

The rate at which calcium chloride is equal to the rate at which sodium chloride is produced.

Let me know if I'm wrong.

6 0
2 years ago
Read 2 more answers
Other questions:
  • HELP ASAP
    9·2 answers
  • 6.All wheelchairs may be secured so that the user is facing the curb side of the vehicle.
    9·1 answer
  • Alexander calders mobiles, like untitled, move when air currents move through them, making them_____________
    12·1 answer
  • What is marrow??????????????????????????
    9·2 answers
  • When white light is passed through a prism, it will
    6·2 answers
  • Which image shows a non renewable resources?
    6·2 answers
  • The site<br> of proteins is called what
    5·2 answers
  • A meteroid is in a circular orbit 600 km above the surface of a distant planet. the planet has the same mass as Earth but has a
    14·2 answers
  • Joel uses a force of 50 Newtons to hold two weights 0.60 meters above his head. How much work is Joel doing on the weights?
    12·1 answer
  • I’m sorry, but the person you are calling has a voice mailbox that has not been set up yet.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!