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
makvit [3.9K]
3 years ago
13

Phase change occurs in which of the following A. A suspension. B boiling point. C An explosion D Mixing Point

Physics
2 answers:
QveST [7]3 years ago
5 0

Answer:

B. Boiling point

Explanation:

Boiling water: A phase change occurs when water boils.

The three common phases are solid, liquid, and gas. A phase change happens when one phase changes into different phase without a change in chemical composition.

When water boils, the liquid phase becomes a gas (water vapor or steam). The chemical composition of water does not change while boiling because each phase consists of water.

Thus, boiling water is the phenomena of a phase change.

Therefore there will be a phase change at boiling point.

Inessa05 [86]3 years ago
4 0
C I think not totally sure
You might be interested in
A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the blow-dryer is 13 A, while that
Feliz [49]

Answer:

(a) 1560 W

(b) 576 W

(c) 1.01

Explanation:

Voltage, V = 120 V

Current in dryer, I = 13 A

current in vacuum cleaner, i' = 4.8 A

(a) Power consumed by dryer,

P = V I = 120 x 13 = 1560 W

(b) Power consumed by vacuum cleaner

P' = V I' = 120 x 4.8 = 576 W

(c) Energy consumed by dryer

E = P x t = 1560 x 15 x 60 = 1404000 J

Energy consumed by the vacuum cleaner

E' = P' x t' = 576 x 40 x 60 = 1382400 J

the ratio of energies is

E : E' = 1404000 : 1382400 = 1.01

3 0
3 years ago
A _________ reaction is a type of endothermic reaction that takes place when an ionic compound mixes in water to create an ionic
USPshnik [31]
Chemical reaction is a type of endothermic reaction.
5 0
3 years ago
Read 2 more answers
A 4 kg block is pulled with 4.1 N of force to the right. The block experiences 1.0 N of
Evgesh-ka [11]

Answer:

CHECK THIS..

THANK YOU.

4 0
3 years ago
A Foucault pendulum consists of a brass sphere with a diameter of 31.0 cm suspended from a steel cable 11.0 m long (both measure
kozerog [31]

Answer:

43.7 °C

Explanation:

\alpha_b = Coefficient of linear expansion of brass = 18\times 10^{-6}\ ^{\circ}C

\alpha_s = Coefficient of linear expansion of steel = 11\times 10^{-6}\ ^{\circ}C

L_{0b} = Initial length of brass = 31 cm

L_{0s} = Initial length of steel = 11 m

\Delta L = Total change in length = 3 mm

Total change in length would be

\Delta L=\Delta L_b+\Delta L_s\\\Rightarrow \Delta L=L_{0b}\alpha_b\Delta T+L_{0s}\alpha_b\Delta T\\\Rightarrow \Delta T=\frac{\Delta L}{L_{0b}\alpha_b+L_{0s}\alpha_b}\\\Rightarrow \Delta T=\frac{0.003}{0.31\times 18\times 10^{-6}+11\times 10^{-6}\times 11}\\\Rightarrow \Delta T=23.7\ ^{\circ}C

\Delta T=23.7\\\Rightarrow T_f-T_i=23.7\\\Rightarrow T_f=23.7+T_i\\\Rightarrow T_f=23.7+20\\\Rightarrow T_f=43.7\ ^{\circ}C

The final temperature is 43.7 °C

6 0
3 years ago
Instructions:Select all the correct answers.
malfutka [58]

The correct answer is 1 and 4.

Burning of fossil fuels releases harmful gases to the atmosphere which leads to climate change. Burning of hydrogen gas releases water which has no negative effect on climate.

Burning of both fossil fuels and hydrogen takes place inside expensive fuel cells.

Fossil fuels are widely available and easy to locate whereas hydrogen is available in the combined form with other elements. Hydrogen are not found in pure form on earth.

Fossil fuels are non-renewable source of energy which means they cannot be replaced in short time.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Science and technology are interdependent. Advances in one lead to advances in the other.Give an example of this phenomenon.
    11·1 answer
  • What is the formula for time? (something like speed *distance=time??)?
    12·1 answer
  • 1 . A farmer moves along the boundary of his rectangular field of side 10m x 20m . farmer covers 1m in 1sec . what will be the m
    8·1 answer
  • The temperature of a star is 6000K and its luminosity is 1000. Which type of star is it?
    15·2 answers
  • What type of energy is a hot cup of soup and is it mechanical or not?
    9·1 answer
  • A Ferris wheel car is moving in a circular path at a constant speed. Is the car accelerating?
    9·1 answer
  • A bicycle wheel of radius 14 cm is mounted at the middle of an axle 96 cm long. The tire and rim weigh 23 N. The wheel is spun a
    14·1 answer
  • Which changes would most likely limit the growth of a plant-eating animal population
    15·1 answer
  • A car travels 85 km in the first half hour of a trip. The car continues to travel for 2 more hours and travels 200 km. What was
    13·1 answer
  • How do you find out the missing masses in a balloon
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!