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
drek231 [11]
2 years ago
5

Explain the roles of piston valve of a water pump.​

Physics
1 answer:
Shtirlitz [24]2 years ago
4 0

Answer:

The upstroke of the piston draws water, through a valve, into the lower part of the cylinder. On the downstroke, water passes through valves set in the piston into the upper part of the cylinder. On the next upstroke, water is discharged from the upper part of the cylinder via a spout.

Explanation:

You might be interested in
Directions: Read each question carefully and answer
Lady bird [3.3K]
I have all the answers here so take this

8 0
2 years ago
Give an example of hypothesis for an experiment and then identify its dependent and independent variables. Write all the steps o
e-lub [12.9K]
An example of a hypothesis for an experiment might be: “A basketball will bounce higher if there is more air it”

Step one would be to make an observation... “hey, my b-ball doesn’t have much air in it, and it isn’t bouncing ver high”

Step two is to form your hypothesis: “A basketball will bounce higher if there is more air it”

Step three is to test your hypothesis: maybe you want to drop the ball from a certain height, deflate it by some amount and then drop it from that same height again, and record how high the ball bounced each time.


Here the independent variable is how much air is in the basketball (what you want to change) and the dependent variable is how high the b-ball will bounce (what will change as a result of the independent variable)

Step four is to record all of your results and step five is to analyze that data. Does your data support your hypothesis? Why or why not?

You should only test one variable at a time because it is easier to tell why the results are how they are; you only have one cause.

Hope this helps!
6 0
3 years ago
Which of the following is a negative environmental impact of using solar
saw5 [17]

Answer:c

Explanation:

7 0
3 years ago
A boy got out of a boat and as he
emmainna [20.7K]

Answer:

third law of motion

Explanation:

6 0
3 years ago
You throw a small rock straight up from the edge of a highway bridge that crosses a river. The rock passes you on its way down,
Agata [3.3K]

Answer:

Explanation:

for vertical movement , time to reach the top = time to reach the hand = 2.5 s

v = u - gt

At the top , v = 0 , time t = 2.5 s

0 = u - g x 2.5

u = 2.5 x 9.8 = 24.5 m /s

velocity of throw = 24.5 m /s

So , when it passes the hand on its way down , it will have velocity equal to 24.5 m /s and it will accelerate downwards . Let its velocity down by 22 m be v

v² = u² + 2 g s

= 24.5² + 2 x 9.8 x 22

= 600.25 + 431.2

= 1031.45

v = 32.11 m /s .

7 0
3 years ago
Other questions:
  • An iron nails sinks in water,while a large ship floats on the surfacr of water
    10·1 answer
  • ) In the calibration step of a thermochemistry experiment, a current of 117 mA, from a 24.0 V source was allowed to flow through
    11·1 answer
  • An atom that changes so that it has an<br> electrical charge is a(n)
    8·1 answer
  • A pitcher throws a baseball that reaches the catcher in 0.75 s. The ball curves because it is spinning at an average angular vel
    7·1 answer
  • Which describes why radioisotopes can be used as tracers in studying the biological and chemical processes of plants?
    6·1 answer
  • A ball is moving across a level platform 1.6m above the floor. After rolling off the ball hits the floor 20 from the base of the
    7·2 answers
  • A wheel is rotating freely at angular speed 660 rev/min on a shaft whose rotational inertia is negligible. A second wheel, initi
    15·1 answer
  • Suppose that the hatch on the side of a Mars lander is built and tested on Earth so that the internal pressure just balances the
    9·1 answer
  • A position vector in the first quadrant has an x-component of 6 m and a magnitude of 10 m. What is the value of its y-component
    13·1 answer
  • A 60.00-cm guitar string under a tension of 50.000 N has a mass per unit length of 0.100 00 g/cm chegg
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!