1.Beaker A has less thermal energy than Beaker B
2.The water molecules in both beakers A and B have the same average kinetic energy
The temperature of the water in each of two beakers is same (50°C).
Beaker One contains ([tex]m_{1}[/tex]) 100 g of water
Beaker Two contains ([tex]m_{2}[/tex]) 250 g of water
Heat gained and lose by the object is depends on mass, change in temperature and specific heat.
Both beakers are made with same materials so their Specific heats and temperature are same .
Beaker B has more mass then Beaker A so Beaker A has less thermal energy than Beaker B.
2.The water molecules in both beakers A and B have the same average kinetic energy.
The temperature of an object is a measure of its internal energy. Thermal Energy is a form of Kinetic Energy because it is related to the Molecular Velocity.
When Temperature increases the velocity of the molecules ( increases or decreases) and the Kinetic Energy (increases or decreases) as Temperature decreases the velocity of the molecules ( increases or decreases) and the Kinetic Energy (increases or decreases).
so Kinetic Energy Depends on Velocity and Velocity depends on the Temperature in this problem Temperature are same so The water molecules in both beakers A and B have the same average kinetic energy.
what do you mean by Heat capacity of water?
It takes a lot of heat to increase the temperature of liquid water because some of the heat must be used to break hydrogen bonds between the molecules.
In other words, water has a high specific heat capacity, which is defined as the amount of heat needed to raise the temperature of one gram of a substance by one degree Celsius. The amount of heat needed to raise the temperature of 1 g water by 1 °C is has its own name, the calorie.
Learn more about Heat
https://brainly.com/question/26268921
i really need help, whats 2+2
Answer:
2+2 =4
Explanation:
i counted my fingers ✌✌
I do not get this question, estimate the number of people currently picking their nose right now. What will be the answer for this one?
Answer:
1000000.
Explanation:
5. The boiling point of mercury is lower than
that of alcohol.
Answer:
I thinl it is I'm not sure though
Answer:
Imma say false
Explanation:
Just my opinion
Cuánta cantidad de calor de un Añadir a un reciente de agua de 1000 G de masa Una temperatura de 40 grados centígrados para que toda esta agua se vuelva a vapor
Answer:
Q = 251040 J o 251 KJ
Explanation:
Cantidad total de agua = 1000 gramos
Temperatura inicial (T1) = 40 grados Celsius
Temperatura final (T2) = 100 grados Celsius (temperatura de ebullición del agua)
Calor específico del agua (C) = 4.184 J / g
Tal como lo conocemos
Q = m * C * (T2-T1)
Sustituyendo los valores dados, obtenemos -
Q = 1000g * 4,184 J / g / grado Celsius * (100-40) grados Celsius
Q = 1000 * 4,184 * 60 J
Q = 251040 J o 251 KJ
Dadas dos sustancias con distinta densidad, las cuales se mezclan, formarán una nueva sustancia con una densidad.....
Igual a la suma de las densidades de ambas sustancias
Igual a la suma de las densidades de ambas sustancias
Igual a la diferencia de las densidades de ambas sustancias
Igual a la diferencia de las densidades de ambas sustancias
de la cual no puedo predecir nada sobre su valor
de la cual no puedo predecir nada sobre su valor
de un valor intermedia a ambas sustancias el cuál dependerá de que sustancia esté en mayor cantidad
de un valor intermedia a ambas sustancias el cuál dependerá de que sustancia esté en mayor cantidad
Answer:
Explanation:
Equal to the sum of the densities of both substances
Equal to the sum of the densities of both substances
Equal to the difference in the densities of both substances
Equal to the difference in the densities of both substances
of which I cannot predict anything about its value
of which I cannot predict anything about its value
of an intermediate value to both substances which will depend on which substance is in greater quantity
of an intermediate value to both substances which will depend on which substance is in greater quantity
Which phase of the moon can be observed from Earth when these bodies are positioned in this way?
A.
full moon
B.
first quarther
C.
new moon
D.
waxing gibbous
Why?
Answer:
waxing gibbous
Explanation:
because the moon is before the earth
what is three type of earthquake waves
Answer:primary,secondary and surface waves I do believe
Explanation:
The graph shows the layers of Earth's atmosphere. Which statement best describes the relationship between temperature and altitude in the atmosphere?
A. The relationship between temperature and altitude is variable and unpredictable.
B. Overall, the temperature of the atmosphere increases with altitude.
C. The relationship between temperature and altitude is different in each zone of the atmosphere.
D. Temperature decreases with altitude until the stratosphere is reached, and then it increases from there.
Answer:
The best statement which describe this is actually:
D. Temperature decreases with altitude until the stratosphere is reached, and then it increases from there.
Explanation:
From the graph shown, it could be seen that, temperature decrease with height. The higher the height, the lower the temperature. For example, from the graph, when the height was around 50 km, the temperature was within the range of -10⁰C to 0⁰C. On the other hand, when the height increases around 78 km, the temperature decreases to the range of to -70 ⁰C to -80⁰C
Plastics are used in millions of objects we use every day. Why are plastics NOT considered natural resources?
A. They are recyclable.
B. They are made by people. C. They are bad for the environment.
D. They are made entirely from nonrenewable resources.
Answer:
letter C. they are bad for the environment
How is the gravitational force similar to the electric force?
Answer:
They are both proportional to the product of their masses and inversely proportional to the square distance between the masses.
Justin mixed two cups of lemon juice and two cups of sugar with a gallon of water in a pitcher. What happened to the lemon juice, sugar, and water?
Answer:
The correct answer is - Lemon juice hydrolyzes sugar and dissolves it faster and creates a solution.
Explanation:
When mixing lemon juice and sugar in water are mixed together, the lemon juice dissolves the sugar faster as it has citric acid that hydrolyzes sucrose molecules of sugar in glucose and fructose.
This mixing of all three lemon juice, water, and sugar form a solution. Here in this solution, water is solvent, and sugar and lemon juice are solutes. The quantity of all three determined the nature of the solution if it will be acidic or more diluted.
Wants to slide his 430g water bottle precisely 12m to land inside a Bull's Eye! If the coefficient of kinetic friction between the bottle and the surface is 0.62, calculate the initial speed he must release the bottle?
Answer:
Ff = u M g frictional force where u = .62
1/2 M v^2 kinetic energy of water bottle at release
Ff * d = 1/2 M v^2 = u M g d work to stop equals initial kinetic energy
v^2 = 2 u g d = 2 * .62 * 9.8 * 12 = 146 m^2 / s^2
v = 12.1 m/s
5. It took 500 newtons of force to push a car 40 meters. How
much work was done?
Answer:
Explanation:
work done=force * displacement
=500 N * 40 m
=2000 joule
in 4 seconds, a cheetah can run 112 meters. How fast does this cheetah have to be running? A: 448 m/s || B: 28 m/s || C: 56 m/s || D: 36 m/s
Answer:
B: 28m/s
Explanation:
Use the speed formula
Speed =distance / time
Answer:
[tex]\boxed {\boxed {\sf B. \ 28 \ m/s}}[/tex]
Explanation:
If we want to know how fast the cheetah is running, we need to calculate its speed. This is the rate at which an object moves and the formula is distance divided by time.
[tex]s=\frac{d}{t}[/tex]
The cheetah ran 112 meters in 4 seconds.
d= 112 m t= 4 sSubstitute the values into the formula.
[tex]s=\frac{112 \ m}{ 4\ s}[/tex]
Divide.
[tex]s= 28 \ m/s[/tex]
The cheetah's speed is 28 meters per second and choice B is correct.
A 12.0 kg object is stationary on a surface that is inclined 30.0° relative to the horizontal. The coefficient of friction is 0.65. Use a free body diagram to determine the magnitude of the force of static friction on the block.
Help please?
Answer:
hope you can understand the calculations
Question 2 (1 point)
What would change if you brought at 100.0 kg cannon ball to the moon?
Mass
оа
Ob
ос
Weight
both
Od
neither
A 37 kg child jumps in the air. At the maximum height of the jump, the GPE is 500J. If the mass of the boy is tripled, how much Potential Energy does the child have at the top of his jump? If the same boy's mass is doubled, but his height is quadupled, how much Potential Energy does the child have at it's maximum and in what position in the jump will he be?
Answer:
*Answers are in their respective order with the questions.
[tex]1500\:\mathrm{J},\\4500\:\mathrm{J},\\5.52\:\mathrm{m}[/tex]
Explanation:
The [gravitational] potential energy of an object is given by [tex]PE=mgh[/tex], where [tex]m[/tex] is the mass of the child, [tex]g[/tex] is acceleration due to gravity, and [tex]h[/tex] is the height of the object (relative to the ground).
"If the mass of the boy is tripled, how much potential energy does the child have at the top of his jump?"
Without actually plugging and chugging, notice the formula in which gravitational potential energy is given. Potential energy is directly proportional to mass. Therefore, if the mass of the boy is tripled, his potential energy will also be tripled, yielding an answer of [tex]500\cdot 3=\boxed{1500\:\mathrm{J}}[/tex]
"If the same boy's mass is doubled, but his height is quadrupled, how much potential energy does the child have at its maximum and in what position in the jump will he be?"
In similar fashion to the first question, we can note that the potential energy of an object is directly proportional to its mass and height. Therefore, if the boy's mass is doubled and his height is quadrupled, his potential energy will be [tex]2\cdot 4=8[/tex] times as large at maximum height. Thus, he will have [tex]500\cdot 8 =4,000\:\mathrm{J}[/tex] of potential energy at the maximum height. I'm assuming that "in what position in the jump will he be?" is asking for the height at the maximum height of the jump.
The original height can be solved using:
[tex]PE=mgh,\\500=37\cdot 9.8\cdot h,\\h=\frac{500}{37\cdot 9.8}=1.37892995036\:\mathrm{m}[/tex]
Quadrupled implies being multiplied by four. Therefore, we have:
[tex]h'=1.37892995036\cdot 4=5.51571980143\approx \boxed{5.52\:\mathrm{m}}[/tex]
for every 1000 joules or useful energy output, the heater wastes 100 joules, find the input energy of the heater.
Answer:
the Input Energy is 1,100 J
Explanation:
Given;
useful energy, = 1000 J
energy wasted, = 100 J
The total or input energy is given as;
Input Energy = useful energy + energy wasted
Input Energy = 1000 J + 100 J
Input Energy = 1,100 J
Therefore, the Input Energy is 1,100 J
Pls help,will give brainliest
Answer:
It would most likly be negitive, but I'm not 100% sure.
Explanation:
PLEASE ACTUAL HELP NO SPAMS OR FALSE ANSWERS
First, evaluate these three models. One represents fission, one fusion, and one radioactive decay. Write three sentences about each one according to the following framework:
---State what reaction the model represents, including what it demonstrates about mass and/or energy.
---State whether you think the model accurately represents the reaction. Explain why or why not.
---Suggest one way to improve the model.
Model A: Two sponge balls representing two atoms are soaked in water. You hold one ball, and your friend holds the other. Then you press the two balls together. As you press them together, water leaks out. What type of reaction does this model represent?
Model B: You draw a tree diagram showing a large atom splitting into two parts and neutrons being released. Your diagram also shows the released neutrons hitting other large atoms, which then each split in two and release more neutrons, which hit more large atoms, and so on. What type of reaction does this model represent?
Model C: You have 100 candies with the letter "M" on one side. You pour the candies into a pan. You count and remove all the candies with the "M" facing upward. Then you shake the pan and again count and remove all the candies with "M" facing upward. You shake, count, and remove candies four more times. What type of reaction does this model represent?
When energy is transferred from system to surrounding then the corresponding reaction known as exothermic reaction in Modle A when we press the ball(atom) the water(energy) is transferred into surrounding hence it is an exothermic reaction.
When a single atom disintegrate to give two or more atom with radioactive substance then the corresponding reaction know as Nuclear Fission reaction. hence Modle B represents Nuclear fission reaction.
The Model C represents Radioactive decay, So in the given example or model the water is playing role of radiation through which we are removing the candies having M on upside.
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Please help the right answer get the Brainly and this is physical science btw
Sadie rides her bike 1600 m East and then turns around and goes 800 m
West. What is her displacement?
Answer:
(1600 m east) + (800 m west) = (800m east)
Her displacement is 800 m east.
Explanation:
Displacement is the distance and direction between the starting point and ending point,regardless of the route traveled between them.
Draw a circuit that uses the resistors listed below as well as a 12V battery source. For your circuit, determine (a) the total resistance, (b) the total current, and (c) the total voltage over the entire system.
Answer: hello your questions lacks the required resistor values therefore i will provide a general answer using an example
answer : a) 14 ohms b) 0.86 amps c) 10.32 V
Explanation:
Assuming the resistors are : 3 ohms , 4 ohms and 5 ohms
Voltage source = 12V
Assuming that the Resistors are in series
a) Determine Total resistance
Req = R1 + R2 + R3
= 3 + 4 + 5 = 14 ohms
b) Total current
Ieq = V / Req
= 12 / 14 = 0.86 amps
c) The Total Voltage over the entire system
Vt = ∑ Voltage drops
= ( 0.86 * 3 ) + ( 0.86 * 4 ) + ( 0.86 * 5 )
= 10.32 V
A particle of mass m and charge q is released from rest in a uniform electric field Find the momentum attained by the particle after moving distance xis
Answer:
Momentum = 2qEx/v
Explanation:
From the work - energy theorem, we know that;
Kinetic energy = work done
Now, formula for both are;
Kinetic energy = ½mv²
Work done = qEx
Where;
m is mass
v is velocity
q is charge
E is Electric field
x is distance covered.
Thus;
½mv² = qEx - - - - (eq 1)
Now, momentum formula is;
p = mv
Let's rewrite the left hand side of equation 1 to reflect p = mv. Thus;
½v(mv) = qEx
½vp = qEx
p = 2qEx/v
Astronomers have measured that there is more helium in the universe than can be explained by the fusion in stars over the last 13 billion years. How do they think the extra helium got into the universe
Answer:
From big bang and stars.
Explanation:
The extra helium got into the universe through big bang and fusion reaction that occur in stars. Our universe formed about 13.7 billion years ago with big explosion, this event is known as big bang. The fusion of hydrogen nuclei in the stars produces helium and energy so we can say that most of the extra helium got into the universe through fusion reaction that occur in the stars continuously.
4 A car moves at a constant velocity of 30 m/s and has 3.6 x 10*5J of kinetic
energy. The driver applies the brakes and the car stops in 95 m.
Calculate the force needed to stop the vehicle.
Answer:
To find the force we need mass and acceleration so let's find them first
[tex] \frac{1}{2} m {v}^{2} = 3.6 \times {10}^{5} \\ \frac{1}{2} \times m \times 900 = 3. {10}^{5} \\ m = 800kg[/tex]
[tex] {v}^{2} = {u}^{2} + 2as \\ 0 = 900 - 2a(95) \\ a =4.7m {s}^{ - 2} [/tex]
[tex]f = ma \\ f= 800 \times 4.73 \\ f= 3784n[/tex]
A 5 kg mass is moving at 3 ms-1. Calculate its kinetic energy.
Answer:
1/2 MV squared
1/2*5*3 squared
=22.5
Time ____ is a phenomenon in which objects in motion and objects at rest experience time differently.
Time dilation is a phenomenon in which objects in motion and objects at rest experience time differently.
What is Time?This can be defined as a measurable period during which an action exists or continues and the standard unit is seconds.
Time dilation occurs when objects in motion and objects at rest experience time differently. In this situation, the clock of an individual tends to be slower than that of the other and is known as a theory of relativity.
Read more about Time here https://brainly.com/question/13893070
Answer:
Dilation
Explanation:
when organism dies , the nutrients in its body ?
Answer: are released by the action of decomposers
Explanation:
As a sound wave changes from one to another, it will often be refracted.A. frequency B. amplitude C. medium D. wavelength?
Answer: the answer is medium
Explanation: