Answers
If you are adding heat to a sample at a constant rate, you plot the temperature against time.
Temperature is the vertical axis. Time is the horizontal axis. You get a graph like the diagram below.
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If you heat the solid, it gradually warms up. You get the blue line in the graph above.
At some point, the solid will melt. You reach a plateau where the temperature remains constant as long as both solid and liquid are present. The heat energy is used to convert the solid into a liquid, so the temperature does not change.
Once the solid has melted, the added heat goes into warming up the liquid. You get the green line in the graph.
At another point, the liquid will boil. You reach a second plateau where the temperature remains constant as long as both liquid and gas are present. The heat energy is used to convert the liquid into a gas. Again, the temperature does not change.
Once the liquid has disappeared, the added heat goes into warming up the gas. You get the red line in the graph.
An increase in temperature leads to an increase in absorbed heat which in turn leads to a change in state of the substance/matter.
From the graph attached below the increase in temperature causes the change in state of the matter ( i.e. water from solid to a gaseous state ), while the plateau represents the transition phase it also indicates the exact temperature wherein the substance changes from one state to another. as the temperature increases the substance absorbs more heat which leads to its change in state.
Attached below is a graphical representation describing the change in state of a substance ( water )
From the graph we can conclude that an increase in temperature leads to an increase in absorbed heat which in turn leads to a change in state of the substance.
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Related Questions
explain 3points to be taken into consideration while measuring the length of a body
Answers
Answer:
Y T and v
Explanation:
What two areas of your body (related to the skeletal system) would be impacted by prolonged periods of sitting and typing
Answers
Answer: Weak Legs and Glutes
Explanation: Cause ur legs go brrrrrr
What is the initial velocity for a zombie that accelerates uniformly at 6.1 m/s2 for 7.0
seconds along a 15 m path?
Answers
Answer:
Therefore, the initial velocity of zombie is 19.2 m/s.
Explanation:
Given:
The acceleration of motion of zombie is [tex]a=6.1 \rm{m/s^{2}}[/tex]
Zombie accelerates for [tex]t=7\rm{s}[/tex]
The distance covered by the zombie is [tex]s=15\rm{m}[/tex]
To find the initial velocity [tex]u[/tex] of the motion, use the second equation of motion,
[tex]s=ut+\frac{1}{2}st^{2}[/tex]
[tex]15=u\times7+\frac{1}{2}6.1\times(7)^{2}\\u=-19.2\rm{m/s}[/tex]
Therefore, the initial velocity of zombie is 19.2 m/s.
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write therelationship between si unit and cgs unit of force
Answers
Explanation:
The si unit of force is kgm/s²
the unit of cgs of force is gcm/m²
A man walks his dog on a very straight path in a park. He can walk back and forth as slow or fast as he wants to, but he has to stay on the path. Which of the following statements is correct for an arbitrary time interval?
a. His average speed can be greater than the magnitude of his average velocity.
b. His average speed can be less than the magnitude of his average velocity.
c. Since he is walking along a straight path, his average acceleration must be zero.
d. His average velocity must be zero.
Answers
Answer:
a. His average speed can be greater than the magnitude of his average velocity.
Explanation:
As speed is distance traveled over time traveled, this is always greater than zero if he has moved at all.
velocity is displacement over time traveled. As the man is allowed to return to the point of origin, his velocity at some point might be zero while his speed is positive.
1. Calculate the height of tree, 250 m away that produces
an image 1.5cm high
in a
pin-hole camera of width 30 cm.
Answers
Answer:
Explanation:
1.5/30 = x/250
x = 12.5 m
distinguish between basic and derived units
Answers
Answer:
Base units are defined units based on specific objects or events in the physical world. Derived units are defined by combining base units.
Base units are defined by a particular process of measuring a base quantity whereas derived units are defined as algebraic combinations of base units. For example, length is a base quantity in both SI and the English system, but the meter is a base unit in the SI system only.
Diffrence between MeV and meV?
Answers
Answer:
Difference between MeV and meV?
1 MV = 1000000 volts. 1 MeV stands for million electron volts. It is a unit of energy. 1 MeV = 1.60217653 x 10 13
Explanation:
hope this helps <3
find application in physics that are mention and discuss
Answers
Answer: Application of physics:
describing the motion, forces and energy of ordinary experience. In actions such as walking, driving a car or using a phone, physics is at work. For everyday living, all the technologies you might take for granted exploit the rules of physics.
3. The equation of motion of a SHM oscillator is x=0.5msin(2πf)t, where x is in meter and t is in seconds. If the position of the oscillator is at x=0.25m and t=0.25s . what is the frequency of the oscillator ?
Answers
Answer:
f = 1/3 Hz
Explanation:
0.25 = 0.5 sin(2πf)0.25
0.5 = sin(0.5πf)
take arcsine of both sides in radians
0.52359 = 0.5πf
f = 0.52359 / 0.5π = 0.33333...
The frequency of the oscillator is 0.33 Hz.
We have an equation of SHM.
We have to identify the frequency of the oscillator.
What are the conditions for a motion to be Simple Harmonic ?The conditions are -
The restoring force must be proportional to the displacement.The restoring force should act opposite to the direction of motion with no drag forces or friction.According to the question, we have -
x = 0.5 sin(2πft)
Substituting the values -
0.25 = 0.5 sin(2πft)
sin(2πft) = 0.5
sin(2πft) = 1/2
sin(2πft) = sin(π/6)
2πft = π/6
2ft = 1/6
f = [tex]\frac{1}{12t}[/tex] = [tex]\frac{1}{12\times 0.25}[/tex] = 0.33 Hz
f = 0.33 Hz
Hence, the frequency of the oscillator is 0.33 Hz
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A car has a speed of 32 m/s. What is its speed in km/h?
Answers
Answer:
The speed of 32m/s would be 115.2 in km/h
Answer:
Explanation:
32 m/s (3600 s/ 1 hr)(1 km/1000 m) = 115.2 km/hr
If the displacement of an object is given in SI units by Dx = -3 t + 4 t 2, at t = 2 s its velocity and acceleration are, respectively:
a) positive, positive.
b) negative, positive.
c) negative, negative.
d) positive, negative.
Answers
(A)
Explanation:
If the displacement is given by
[tex]D_x = -3t + 4t^2[/tex]
Then its velocity [tex]v_x[/tex] and acceleration [tex]a_x[/tex] are then
[tex]v_x = \dfrac{dD_x}{dt} = -3 + 8t[/tex]
[tex]a_x = \dfrac{dv_x}{dt} = 8[/tex]
Evaluated at t = 2, we see that [tex]v_x = 13[/tex] and [tex]a_x = 8[/tex] and both of them are positive. Therefore, the answer (a).
Answer:
QUESTION
If the displacement of an object is given in SI units by Dx = -3 t + 4 t 2, at t = 2 s its velocity and acceleration are, respectively:
[tex]==============================[/tex]
ANSWER
a) positive, positive
[tex]==============================[/tex]
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What topic name does this equation go into in physics? [tex]A_{y} = A sin \theta[/tex]
Answers
[tex] \huge \boxed{\mathfrak{Question} \downarrow}[/tex]
What topic name does this equation go into in physics?[tex]A_{y} = A sin\theta[/tex][tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
[tex] \huge \boxed{\sf \: A_{y} = A sin\theta}[/tex]
So, I think this equation will go under Types of Physical quantities, Vector Quantities, Magnitude, Direction, etc. under physics & Trigonometry under Mathematics.This formula is used when we need to find the 'y' component of the vector. You need to know basic trigonometry to solve these type of equations & also how to convert between magnitude & angles.What are the similarities between theory and law ?
Answers
A law is created using a theory
Hope this helps you!!!
You are making a round trip from City A to City B and back to City A again at constant speed. At what point in the trip is your average
speed equal to three times the magnitude of your average velocity?
Answers
We have that at a point where the final velocity opposes the initial velocity to divide the total distance into 3 i.e
For
[tex]Total Distance=d_t[/tex]
[tex]Speed =3* Velocity[/tex]
at
[tex]d=d_t/3[/tex]
Generally
Speed refers to the distance covered at a specific time rate.
While
Velocity takes into account the direction of motion of traveling body
Therefore
For a distance Through and fro city A and B a specific distance is traveled with a specific time
The Question being at what point or position is the
Speed =3* Velocity
Since the Velocity takes into account the direction
The Magnitude of velocity through and fro is equal to zero as
Therefore
Speed =3* Velocity
At a position where the final velocity opposes the initial velocity to divide the total distance into 3 i.e
For
[tex]Total Distance=d_t[/tex]
[tex]Speed =3* Velocity[/tex]
at
[tex]d=d_t/3[/tex]
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what is kinematics ??
how do we spell it ??
don't spam !! xD
Answers
Answer:
Kinematics is the study of motion.
Answer:
Kinematics is the branch of classical mechanics that describes the motion of points, objects and systems of groups of objects, without reference to the causes of motion (i.e., forces ). The study of kinematics is often referred to as the “geometry of motion.”Which two vectors when added will have the largest positive x component?
Answers
Answer:
The Number is concept. It is depending with what you mean by infinity. Some of the numbers include 1 through 2 or infinite. If you work with vector space of tuples with any components could be infinite you just know what typed of infinity work with.
Explanation:
May you have a bless day. And send positive all over the world.
If there are 4 quarts in a gallon, convert 14 liters to gallons
USE THE LIQUID CONVERSION, not dry.
8.4
3.7
O 14.6
Answers
Answer:
3.70 gallons
Explanation:
Being willing to sincerely apologize for mistakes errors and blunders goes a long way toward
Answers
Answer:
All of the above ! Hope this helps! ♥
Explanation:
Being willing to sincerely apologize for mistakes, errors, and blunders goes a long way toward nurturing relationships with customers and retaining customers. Option (c) is correct.
What do you mean by Apology?Apology means to express regret for having done something that has caused another person problems or misery
Sincere apology aids in mending ties with those you've harmed. That may include coworkers, customers, friends, or family.
You can start a conversation with the other person by owning up to your error. You can then consider your actions and accept responsibility for them. Also, they can deal with their emotions, regain their composure, and refrain from taking responsibility for what transpired.
You may improve your behavior going forward, keep your dignity, and regain people's respect by apologizing.
Therefore, Option (c) is correct.
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Your question is incomplete, most probably the complete question will be;
Being willing to sincerely apologize for mistakes, errors, and blunders goes a long way toward:
Helping to learn from mistakes
Helping nurture the relationship with customers
Retaining customers
All of the above
6. A journalist is testing the acceleration of a new car. He measures the final velocity of the car to be 15 m/s. If the
car was initially stopped 10 s before the journalist made her measurement, what is the car's acceleration?
Answers
Answer:
1.5 m/s^2
Explanation:
Don't rlly understand the question, but I'll just take it as the initial velocity is 0
a = 15 - 0
- - - - - -
10
= 1.5 m/s^2
c. A car was running with a velocity of 20m/s. what will be its velocity after 30s if it's acceleration is 5m/s2
Answers
[tex] \large \mathfrak{Solution : }[/tex]
let's use first equation of motion to solve this ;
[tex] \boxed{ \boxed{ v = u + at}}[/tex][tex]v = 20 + (5 \times 30)[/tex][tex]v = 20 + 150[/tex][tex]v = 170 \: \: m/s[/tex]Velocity after 30 seconds = 170 m/s
N2 + 3H2 + 2NH3
What type of reaction is this
Answers
Answer:It is a combination reaction; nitrogen and hydrogen combine to form ammonia
Explanation:
This is the reaction that is used to make ammonia from hydrogen and nitrogen. In this reaction, only one product is formed. Therefore, this reaction is known as a combination reaction.
In the early twentieth century, _______ redefined psychology as "the science of observable behavior."
A. John B. Watson
B. Abraham Maslow
C. William James
D. Sigmund Freud
Answers
Explanation:
Answer :
A. John B. Watson
Một hòn đá được ném từ đỉnh của một tháp cao 45m theo phương nằm ngang với vận tốc ban đầu v0 = 15m/s. Bỏ qua lực cản không khí. Cho g = 10m/s2. Xác định:
a. Tầm bay xa và thời gian bay của hòn đá.
b. Vận tốc, gia tốc tiếp tuyến, gia tốc pháp tuyến của hòn đá khi chạm đất.
Answers
Answer:
What????????????????????????????
Why do scientists sometimes discuss the possibility of silicon as a basic element for life?
A. Silicon has an outer shell of electrons that is similar to carbon.
B. Silicon is similar in atomic mass to carbon.
C. Silicon has an inner shell of electrons that is similar to carbon.
D. Silicon is similar in abundance to carbon.
Answers
Answer:
Explanation:
None of the other answers matter but the right answer which A. Silicon has an outer shell of 4. Carbon can connect with 4 elements because of its outer shell. CH4 is the simplest example. But C2H6 is also possible.
H H
H - C - C - H
H H
There are 4 connections to the outside world for the Carbon (C) on the left.
It has 3 hydrogens connected on to it and one of its connecting electrons goes with the other carbon on the right.
Silicon can do the same thing.
What phase of matter has the highest energy?
Answers
Answer:
plasma is the state with the highest energy level.
For each indicated point on the trajectory, place the vectors that qualitatively represent the relative velocity and acceleration of a ball that is thrown straight up, from the time it is thrown to the time it is caught. Note that the horizontal displacement of the ball is only for visual clarity. The vector for the acceleration due to gravity is at the bottom right of the figure for reference.
Answers
The direction of the velocity of an object is always in the direction of the object's motion while the acceleration due to gravity is always directed downwards.
The direction of velocity of an object projected upwards points upwards from the starting position until the object reaches maximum height, from the maximum height the velocity points downwards and this velocity increases until the object hits the ground.
The object attains maximum velocity before hitting the ground.At the maximum height the final velocity of the object is zeroThe acceleration due to gravity doesn't always point in the direction of the object's motion, in fact the direction of the acceleration due to gravity is always downwards.
In the given charts we are going to represent the direction of the velocity and acceleration as follows;
Upward direction of the velocity
+v ↑ ↑ ↑ . maximum height
↑ ↑ ↑
↑ ↑
↑
Ground level
downward direction of the velocity is as follows;
-v ↓ ↓ ↓ . maximum height
↓ ↓ ↓
↓ ↓
↓
Ground level
The direction of the acceleration due to gravity is as follows;
↓ -g
↓
↓
↓
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Explain how global warming is a result of fossil fuel consumption in recent years
Answers
hi <3
fossil fuel consumption has increased in recent years due to many countries industrializing and becoming more advanced. burning fossil fuels releases greenhouse gases which trap radiation within the atmosphere and heat up the planet
hope this helps :)
Who is your favorite fictional character and why? Who is your favorite non-fictional person and why?
Answers
My least favorite is Bakugo from My Hero Academia because he is toxic, lowdown, and has severe anger issues.
Bắt đầu từ giá trị nào của động năng của các electron thì sai số về bước sóng de Broglie trong quá trình tính toán theo cổ điển sẽ vào cỡ 10%
Answers
Answer:
no idea what this means
Explanation:
yeah
