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
klasskru [66]
3 years ago
10

A piston above a liquid in a closed container has an area of 1m2. The piston carries a load of 350 kg. What will be the external

pressure on the upper surface of the liquid?
A. 27.3 kPa
B. 3.43 kPa
C. 4.90 kPa
D. 68.6 kPa
Physics
1 answer:
RoseWind [281]3 years ago
6 0
<h3><u>Answer;</u></h3>

B. 3.43 kPa

<h3><u>Explanation</u>;</h3>

Pressure is given by the formula;

Pressure = Force / Area

Force is the product of mass and acceleration due to gravity. 

 Thus;  Force = mass x acceleration due to gravity

Substituting;

               Force = (350 kg) x (9.8 m/s²)

               Force = 3430 N

Then, using the first equation;

                Pressure = 3430 N / 1m² or Pa

<h3>                             <u>= 3.43 kPa</u></h3>

You might be interested in
What is the thermal energy of an object
Papessa [141]
It's total kinetic energy
6 0
3 years ago
Could someone please explain to me Archimede's principle without using the term displace (or at least explaining what it means)?
disa [49]
Does this help?

When an object is immersed in a fluid (in this case water, but may include both liquids and gases) the fluid exerts an upward force on the object which is called buoyancy force or <span>up-thrust.  Archimedes’ Principle states that the buoyant force (upward push or force) applied to an object is equal to the weight of the fluid that the object takes the space of by that object.  Thus when an object is placed in water the rise in the water level is dictated by the mass of that object.</span>

<span>
</span>

<span>So for example if you fill a bucket with water and you drop a stone in that bucket, if you measure the weight of the water that overflows from the bucket due to the stone being dropped into the bucket is equivalent to the pushing force that the water has on the stone (as the stone drops to the bottom of the bucket the water is pushing it to stay afloat but the rock is more dense than water and as such its downthrust exceeds water's upthrust).</span>


4 0
2 years ago
Jonathan has six strings that are the same thickness and are all the same material. He cuts the strings to different lengths and
harkovskaia [24]
The shortest string will have the highest pitch.

7 0
3 years ago
Read 2 more answers
how do u calculate the kinetic energy of a ball of mass 0.25kg being kicked vertically upwards with a speed of 5m/s​
vfiekz [6]

Answer:

3.125J

Explanation:

K.E.= 1/2(mass)(velocity)^2

K.E.=1/2(0.25)(5)^2=3.125

6 0
3 years ago
Can someone please help me! BRAINLIEST ANSWER! What happens after the Gulf Stream travels north?
Irina-Kira [14]
A should be the answer since it makes the water down there cold and the air also. (asked my grandma haha
3 0
3 years ago
Other questions:
  • Technician A says that a 12-volt battery has six cells. Technician B says that the more plates a cell in a battery has, the more
    11·2 answers
  • A large crate is suspended from the end of a vertical rope. Is the tension in the rope greater when the crate is at rest or when
    9·1 answer
  • A stunt man is being pulled, at a constant velocity, along a rough road by a cable attached to a truck. The cable is parallel to
    11·2 answers
  • A 1.50-m cylindrical rod of diameter 0.500 cm is connected to a power supply that maintains a constant potential difference of 1
    15·1 answer
  • Can somebody help me pls
    12·1 answer
  • Which of the four fundamental forces is responsible for holding together the molecules of the pizza dough as it is spinning in t
    7·1 answer
  • Negative acceleration is also known as
    11·2 answers
  • Tom has a mass of 50,000 g and runs up a flight of stairs 4 m high in 12.5 seconds.
    15·1 answer
  • A sample is brought to the laboratory and it is determined that one-eighth of the original
    12·1 answer
  • What is the net force in this image?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!