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
Sliva [168]
3 years ago
9

Are all phase change is chemical change? True or false? Why?

Physics
2 answers:
Pani-rosa [81]3 years ago
6 0
The correct answer si false
mina [271]3 years ago
4 0

Answer:

false, because a phase change occurs physical changes when matter changes its energy state.

You might be interested in
A capacitor with plates separated by a distance d is charged to a potential difference ΔVC. All wires and batteries are disconne
Tom [10]

Answer:

Explanation:

Initial separation of plate = d

final separation = 2d

The capacitance of the capacitor will reduce from C to C/2 because

capacitance = ε A / d

d is distance between plates.

As the batteries are disconnected , charge on the capacitor becomes fixed .

Initial charge on the capacitor

= Capacitance x potential difference

Q = C ΔV

Final charge will remain unchanged

Final charge = C ΔV

Final capacitance = C/2

Final potential difference = charge / capacitance

= C ΔV /  C/2

= 2 ΔV

Potential difference is doubled after the pates are further separated.

6 0
3 years ago
Luis wanted to know which of his 4 toy cars is the fastest. He conducted an experime and recorded his results in the table shown
Murrr4er [49]
The dependent variable was the time and the independent variable was thecars
6 0
3 years ago
A bus travels a distance of 120 km with a speed of 40km per hour and returns with a speed of 30km per hour calculate the average
Vsevolod [243]

Answer:

35 km/hr

Explanation:

Average speed = (total of the speed)/(the sets of speeds given)

Direction does not matter in this instance since speed is only magnitude,

Average speed = (30 + 40)/2

Average speed = 70 ÷ 2

= 35 km/hr

3 0
3 years ago
Qué es el espectro electromagnético
Lynna [10]
Es el conjunto de longitudes de onda de todas las radiaciones electromagnéticas
5 0
3 years ago
How many joules is 3 lightning bolts?
pogonyaev

Answer:

one billion to ten billion joules.

Explanation:

To keep a 100-watt light bulb going for one second, one hundred joules of energy will be used.

6 0
2 years ago
Read 2 more answers
Other questions:
  • Two point charges exert a 5.50 N force on each other. What will the force become if the distance between them is increased by a
    14·1 answer
  • Why have fungi evolved mechanisms for dispersal of their spores
    8·1 answer
  • Me kitten runs 40 meters in 8 seconds what is his speed?
    8·2 answers
  • The displacement is a straight line from the starting point to the finish in a ____ direction
    9·1 answer
  • What is the centripetal force that holds planets in orbit?
    6·1 answer
  • Why is your velocity continuously changing as you ride on a carousel?
    6·2 answers
  • Two construction cranes are each able to lift a maximum load of 20000 N to a height of 250 m. However, one crane can lift that l
    10·1 answer
  • When the mass of one object doubles what happens to its gravitational attraction to another object of constant mass, assuming th
    15·1 answer
  • A non living factor in an ecosystem
    13·1 answer
  • A) What minimum velocity must a roller coaster have such that the riders don’t fall out at the top of a loop with a radius of 12
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!