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
julsineya [31]
2 years ago
6

A fixed mass of gas has a volume of 25 cm³. The pressure of the gas is 100 kPa.

Physics
1 answer:
tekilochka [14]2 years ago
7 0

Answer:

67 kPa

Explanation:

Given that,

Initial volume, V₁ = 25 cm³

Initial pressure, P₁ = 100 kPa

Final volume, V₂ = 15 cm³

We need to find the change in pressure of the gas. The relation between the volume and pressure of a gas is given by :

P\propto \dfrac{1}{V}\\\\\dfrac{P_1}{P_2}=\dfrac{V_2}{V_1}\\\\P_2=\dfrac{P_1V_1}{V_2}\\\\P_2=\dfrac{100\times 25}{15}\\\\=166.66\ kPa

or

= 167 kPa

The change in pressure,

= P₂ - P₁

= 167 kPa - 100 kPa

= 67 kPa

Hence, the correct option is (a).

You might be interested in
If a sample of a radioactive isotope has a half-life of 1 year, how much of the original sample will be left at the end of the s
Tasya [4]

Answer:

1/4 of the original

Explanation:

That would be TWO half lives:

1/2  * 1/2   = 1/4   <======= 1/4 would be left

4 0
1 year ago
When you throw a ball up in the air, it travels up and then stops instantaneously before falling back down. At the point where i
Gnoma [55]

Answer:

The ball stops instantaneously at the topmost point of the motion.

Explanation:

Assume we have thrown a ball up in the air. For that we have given a force on the ball and it acquires an initial velocity in the upward direction.

The forces that resist the motion of the ball in the upward direction are the force of gravity and air resistance. The ball will instantaneously come to rest when the velocity of the ball reduces to zero.

The two forces acting in the downward direction reduces its speed continuously and it becomes zero at the topmost point.

4 0
3 years ago
Which of the following elements of writing is defined as the choice of words sulted to the type of writing?
pantera1 [17]

Answer:

Diction

Explanation:

is defined as the choice of words suited to the type of writing. hope this helps you :)

5 0
3 years ago
Read 2 more answers
Which part of a wind-powered system ultimately produces the electricity? A. nacelle B. blade C. turbine D. generator
djverab [1.8K]
<span>The correct answer is: (D) Generator

Explanation:
In wind-powered systems, the wind energy turns the blades around the rotor of a wind turbine. That rotor is connected to a generator that generates electricity. In other words, the kinectic energy of the wind is converted into electrical energy by using the generator in the wind-powered systems.</span>
5 0
3 years ago
Read 2 more answers
Help with this question please.
mr Goodwill [35]

There are 4 hydrogens on the right side (2\mathrm H_2=4\mathrm H), and 2 hydrogens on the left per molecule of \mathrm H_2. To get the same number of hydrogens on both sides, the coefficient should be 2.

(Then the number of oxygens will be consistent, since 2\mathrm H_2\mathrm O contributes 2 oxygens, and so does \mathrm O_2.)

5 0
3 years ago
Other questions:
  • A wave of sound proceeds through the auditory canal to the inner ear where receptor neurons on the basilar membrane are stimulat
    6·1 answer
  • How do you spell hard water in three letters.
    8·2 answers
  • Gravity can be described as
    12·1 answer
  • A rock is placed in a graduated cylinder containing water, and the cylinder is covered to avoid evaporation. The next morning th
    12·1 answer
  • A 20.0-m-tall hollow aluminum flagpole is equivalent in strength to a solid cylinder 4.00 cm in diameter. A strong wind bends th
    6·1 answer
  • An object that is accelerating may be
    7·1 answer
  • A car is moving at 11m/s and has a mass of 1200 kg. What is the momentum of her car?
    13·1 answer
  • A box of unknown weight is 1 m away from the fulcrum. To balance the sides, a student applies a force of 4 N at a distance of 3
    6·1 answer
  • A low-pressure sodium vapor lamp whose wavelength is 5.89 x 10−7 m passes through double-slits that are 2.0 x 10−4 m apart and p
    13·1 answer
  • The len() function counts the total number of key/value pairs stored in a dictionary and returns this value as an integer.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!