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
jek_recluse [69]
3 years ago
15

4. Explain how states of matter change in regards to a. Temperature- b. Pressure-

Physics
1 answer:
Alina [70]3 years ago
5 0
Temperature can change the state from solid to liquid causing it to melting, liquid to gas causing vaporization or a solid to a gas causing sublimation. Pressure alone cannot change the state of matter.
You might be interested in
2. What is the energy that comes from heat?
fgiga [73]
Answer is

B. Exothermic
7 0
3 years ago
Read 2 more answers
In the rocket, what is the equal and opposite reaction?
netineya [11]

Answer:

see below

Explanation:

Gases flying out at high velocity out the back  

  rocket flying forward

7 0
2 years ago
The revolving nosepiece of a compound microscope is used to: a. move the condenser up or down b. change the objective lens c. ad
Jlenok [28]

Answer:

Option B: change the objective lens

Explanation:

The revolving nosepiece is one of the parts of a microscope. Its responsibility is to hold the objective lenses.

6 0
3 years ago
4. Water is flowing at 12m/s in a horizontal pipe under a pressure of 600kpa
shusha [124]

Answer:

a. 192 m/s

b. -17,760 kPa

Explanation:

First let's write the flow rate of the liquid, using the following equation:

Q = A*v

Where Q is the flow rate, A is the cross section area of the pipe (A = pi * radius^2) and v is the speed of the liquid. The flow rate in both parts of the pipe (larger radius and smaller radius) needs to be the same, so we have:

a.

A1*v1 = A2*v2

pi * 0.02^2 * 12 = pi * 0.005^2 * v2

v2 = 0.02^2 * 12 / 0.005^2

v2 = 192 m/s

b.

To find the pressure of the other side, we need to use the Bernoulli equation: (600 kPa = 600000 N/m2)

P1 + d1*v1^2/2 = P2 + d1*v2^2/2

Where d1 is the density of the liquid (for water, we have d1 = 1000 kg/m3)

600000 + 1000*12^2/2 = P2 + 1000*192^2/2

P2 = 600000 + 72000 - 1000*192^2/2

P2 = -17760000 N/m2 = -17,760 kPa

The speed in the smaller part of the pipe is too high, the negative pressure in the second part means that the inicial pressure is not enough to maintain this output speed.

4 0
3 years ago
Which of these is a cultural service—a non material benefit people get from the environment
Firdavs [7]
The answer is Providing national parks
6 0
3 years ago
Read 2 more answers
Other questions:
  • How might observations of the sun's outermost layers reveal what's happening in the interior? and how could this information be
    13·2 answers
  • A hiker walks 20.51 m at 33.16 degrees. What is the Y component of his displacement?
    11·1 answer
  • Which winds are affected by specific landforms on earth's surface?
    12·1 answer
  • Does organisms get rid of waste
    13·2 answers
  • A well-thrown ball is caught in a well-padded mitt. If the deceleration of the ball is 2.10×10^{4} 4 m/s^{2} 2 , and 1.85 ms (1
    15·1 answer
  • A boat is moving at the rate of 15.0 meters per second. It’s speed is then decreased uniformly to 3.0 meters per second. It take
    10·1 answer
  • A bicycle wheel with radius 0.3 m rotates from rest to 3 rev/s in 5 s. What is the magnitude and direction of the total accelera
    5·1 answer
  • What are the five basic postulates of kinetic-molecular theory?
    12·1 answer
  • Equation of motion description is v=20+2t.How big is the initial speed,acceleration?
    15·1 answer
  • Where can you find most of earths freshwater
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!