Answer:
Energy is released or absorbed
The process is reversible
Phase change can be described as:
Energy is released or absorbed.The process is reversible.What is phase change?The physical process of changing a medium's state from one to another is known as a phase transition (or phase change) in the domains of chemistry, thermodynamics, and other related sciences.
The phrase is frequently used to describe transitions between the three fundamental states of matter—solid, liquid, and gas—and, in rare instances, plasma.
The physical characteristics of a phase of a thermodynamic system and the states of matter are constant. Certain properties of a given medium change during a phase transition as a result of a change in the environment, such as temperature or pressure. This change can be discontinuous.
Hence, Phase change can be described as:
Energy is released or absorbed and the process is reversible.
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Pleaseee helpppp meeeeeee I will give pountsss
Answer:
8.m= 0. 113 kg
W = 1.1074 N
g = 9.8 m/ s²
9.m= 870 kg
W = 8526 N
g = 9.8 m/s²
10.a) weight on earth:
weight = mass × acceleration due to gravity (g)
g on earth = 9.8 m/s²
W = 75 × 9.8
W = 735 N
b) g on Mars
285 = 75 × g
g = 285/ 75
g = 3.8 m/ s²
Equations for power
P=
W=
T=
Answer:
w= f*x (x is distance) (f is force)
t= time
P= w/t
the full range of electromagnetic energy is called the
Answer: the electromagnetic spectrum
Explanation:
The full range of frequencies of electromagnetic radiation is called the electromagnetic spectrum. From longest to shortest wavelengths, it includes radio waves, microwaves, infrared light, visible light, ultraviolet light, X rays, and gamma rays.
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NEED HELP!!!!! 11 POINTS!!!
Troy has decided that he wants to be healthier. He has been doing a pretty good job sticking to the exercise routine that he designed. However, he tends to eat a lot of junk food. He assumes that if he is exercising, diet is not really that important. What is the BEST response to Troy’s assumption?
A.
If he eliminates junk food, he will be eating healthy.
B.
As long as he is not overweight, diet does not matter.
C.
If he exercises a lot then it does not matter what he eats.
D.
Exercise and attention to diet need to go together to build health.
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Analyze data table #1 and then create a line graph comparing speed and time.
The half-life of Radon-222 is 3.8 days. Calculate how long a 48g sample of radon will last before it contains only 3g of radon.
PLS HELP FOR MY GCSE REVISION! ill give brainliest
Answer:
48 / 3 = 16
1 / 16 of the original amount is to remain
4 half lives = 1/2 * 1/2 * 1/2 * 1/2 = 1/16
After 4 half lives 1/16 of the original amount is present
4 half-lives * 3.8 days / half-life = 15.2 days
After 15.2 days only 3 g will be present
what is acceleration of gravity
Answer:
Verified answer
Explanation:
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Chọn câu trả lời đúng Một ôtô đang chạy thẳng đều với vận tốc 36km/h bỗng tăng ga chuyển động nhanh dần đều .Biết rằng sau khi chạy được quãng đường 1km thì ôtô đạt vận tốc 108km/h .Gia tốc của xe là
A. 1mm/s2 B. 0.001cm/s2 C. 0,4 m/s2 D. 1m/s2
Answer:
yploi bonjour badam koi dori ka
How do you determined the atomic mass and mass number of an atom?
Answer:
For any given isotope, the sum of the numbers of protons and neutrons in the nucleus is called the mass number. This is because each proton and each neutron weigh one atomic mass unit (amu). By adding together the number of protons and neutrons and multiplying by 1 amu, you can calculate the mass of the atom.
Explanation:
A force of 10 N works on a ball over a distance of 5 m. The force is perpendicular to the displacement of the ball. What is the total work done by the force?
Since the force is perpendicular to the displacement of the ball, the total work done by the force is 50 Nm.
Given the following data:
Force = 10 NewtonDistance = 5 metersTo find the total work done by the force:
The work done by an object is the product of the perpendicular force acting on the object and the distance it covers.
Mathematically, work done is given by the formula:
[tex]Work\;done = Force[/tex] × [tex]distance[/tex]
Substituting the given parameters into the formula, we have;
[tex]Work\;done = 10[/tex] × [tex]5[/tex]
Work done = 50 Nm.
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Arwan finds a piece of quartz while hiking in the mountains. When he returns to school, he takes it to his science teacher. She helps him determine the mass to be 788.9 g. She also tells Arwan that the density of quartz is 2.6 .
What is the volume of Arwan’s piece of quartz?
Answer:
303.42
Explanation:
cause i got it right on my question
Please please help me
Answer:
amitude doesnt change
Explanation:
How does noise affect a signal?
A) It causes the signal to deteriorate.
B) It amplifies the signal.
C) It allows the signal to travel further.
D) It changes the signal as it moves from one medium to another.
Answer:
A - It causes the signal to deteriorate
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option d
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Can someone please give me the answers to this? ... please ...
Answer:
See below:
Explanation:
Motion is what makes something move, there are different types and different ways to make motion, motion also comes with forces.
To figure out the motion type, we can simply see the wording of the sentence:
1) Air Resistance is the motion of air, it would be pushing up to stop the fall a bit.
2) We can neglect the resistance by being straight so we have to deal with less of it.
3) This motion is not in motion as nothing happened/happening.
4) This is friction as the friction of the ground and turning the car is slowing it down.
5) The motion is going in any direction as it depends on the start of the asteroid and its starting angle.
6) If its not moving; there is no motion.
7) We can neglect it by going on a 0 degree slope.
8) We simply have to do nothing as its already a law and will happen naturally.
9) The motion is basic motion with some friction due to its scenario.
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4. Which of the following statements about the state of matter is correct? A. Molecules in a solid are disorderly arranged B. Solids are highly compressible C. Liquids have definite form and volume D. Molecules in a gas move faster than those in a liquid.
Answer:
B. Solids are highly compressible
The weight of a boy with a mass of 50 kg is
N. (Estimate 10
m/s2 forg)
Answer:
500N up........
.......
Answer this question i will mark you brainliest
Answer:
es la c)
Explanation:
Answer:
Es la c porque si ................
Một người tác dụng lên mặt sàn một áp suất 1,7.104N/m2. Diện tích của bàn chân tiếp xúc với mặt sàn là 0,03m2. Trọng lượng của người đó là.
Answer:
Hi, can you ask it in english only?
Question 1 of 10
This graph shows how the potential energy of a reaction system changes
over time. Which statement is true for this system?
B
Potential energy
С
Reaction progress
O A. The potential energy of the reactants is greater than the potential
energy of the products
OB. The height of the curve at point A represents the activation energy
O C. The height of the curve at point B represents the activation energy.
O D. The potential energy of the products is greater than the potential
energy of the reactants.
The potential energy of the reactants is greater than the potential energy of the products.
What is potential energy of reaction?Potential energy of a reaction is the stored energy that helps in breaking the bond of a compound during a chemical reaction.
The bonds present in the reactants in the reaction mixture split in the presence of the activation energy to release energy and form the product.
Thus,, option A. The potential energy of the reactants is greater than the potential energy of the products.
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is it possible for humans to use there extra eyelid?
Answer:
Known as the “plica semilunaris,” it's much more prominent in birds and a few mammals, and functions like a windshield wiper to keep dust and debris out of their eyes. But in humans, it doesn't work. It's vestigial, meaning it no longer serves its original purpose.
Explanation:
Hope it helps
What is qualitative research?
Quality research most commonly refers to the scientific. process encompassing all aspects of study design; in. particular, it pertains to the judgment regarding the match. between the methods and questions, selection of subjects, measurement of outcomes, and protection against.
Answer:
Research is "creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization, and analysis of information to increase understanding of a topic or issue. A research project may be an expansion on past work in the field.
Explanation:
correct answer choice??
-----------------------------------------
Explanation:
magnitude=force/charge
=(2.6N)/(1.5 ×10^-6)
=1.7 × 10^6 N/C
5
2. A truck took 4 hours to complete a journey. At the first 2h,
it travelled at an average speed of 70 km/h. For the rest of
the journey, it travelled at an average speed of 80 km/h.
What was the total distance of the journey?
Answer:
300km
Explanation:
we use the formula s=d/t and solve for d.
d=st
s1=70km/h
s2=80km/h
t=2h
total d= (ts1)+(ts2)
=2(70)+2(80)
=300km
can someone help me, please?
Answer:
what to do
Explanation:
what is this I did not understand
Please help I'll mark brainliest NO LINKS
Answer:
B
Explanation:
Answer:
B
Explanation:
i just did this question last week
A water bottle contains 15.0 ounces of water. A person drinks 0.5 ounces per minute. How many hours will it take to drink all of the water?
write the energy change when charging the battery of a mobile phone
Answer:
Chemical energy
Explanation:
Because most of the modern mobile batteries are lithium ion batteries where the electricity is stored by the chemical changes in the ionic structure of the battery.
Answer:
to make an energy the electricity provide the energy charging when use
Does the partially elastic collision transfer (more, less, or the same) momentum to the catcher than the completely inelastic collision? Explain.
Answer:
momentum is a vector, KE is scalar. Bodies moving in opposite directions have offsetting momentum, but the KE does not offset.
Explanation:
A car, which started at rest, took 5.8 seconds to reach a velocity of 2km/s. What is
the average velocity?
Answer:
1 m/s
Explanation:
Use SUVAT and the equations of motion:
S
U = 0 km/s since it started at rest.
V = 2 km/s
A
T = 5.8 seconds
Equation used: [tex]v=\frac{v+u}{2}[/tex]
[tex]v=\frac{2+0}{2}[/tex]
v=1