14. A spoon is placed in a cup of hot
cocoa. The net flow between the
spoon and the cocoa indicates that
they ahve different
O
specific heats
O
heats of fusion
O
initial temperatures
O
melting points

Answers

Answer 1

Answer:

Specific heats

Explanation:


Related Questions

The earth gravity field strength in the south pole is less than the north pole. Explain

Answers

Answer:

Your weight is the combination of all the large-scale, long-term forces on your body. While the earth's gravity is by far the strongest large-scale force, it is not the only one. What you experience as "something pulling you down" is actually the total of all the forces and not just gravity. The four dominant large-scale,

Explanation:

What is the mass of an apple with a potential energy of 8 Joules that is on a shelf that is 4 meters high?
A; 32kg
B; 15Kg
C;4kg
D:2kg

Answers

Hello I’m pretty sure the answer is b I’m sorry if it’s wrong
It’s b I promise , it’s b cus it can’t be the rest

In which situation is maximum work considered to be done by a force?
A. The angle between the force and displacement is 180°.
B. The angle between the force and displacement is 90°.
C. The angle between the force and displacement is 60°.
D. The angle between the force and displacement is 45°.
E. The angle between the force and displacement is 0°.

Answers

Answer:

d

Explanation:

I really don't know how to explain

Explain what must be true of component waves for reinforcement or interference to occur.

Answers


The component of waves must have same frequency and phase.


when the component of waves vibrate at the same rate and attain maximum point at the same time, reinforcement of the waves amplitude occur to cause a constructive interference.However, when the two waves are out of phase where one is at minimum when the other is at maximum a destructive interference happens.

The answer is the component of waves must have same frequency and phase.

Question 5
Joan wants to decrease her BMI number. How can she achieve her goal?

A. Joan can lose some weight
B. Joan can stretch and get taller
C. Joan can have her blood pressure checked.
D. Joan can take medication


Answers

A. Is the most reasonable answer consider that BMI means Body Mass Index your weight divided by your height in meters and so on B. Doesn’t work. C. B just makes more sense and D. Best to try something on your own then switching to medication

a. l1 =20 A and l2 =24 A
B. l1 = 20A and l2 = 12 A
C. l1 = 26 A and l2 = 12 A
D. l1 = 24 A and l2 = 8 A

Answers

Answer:

when u find out pls lmk! i have the same question and I've been stuck for a while lol

a way of transferring heat that occurs when the heat source and the heat sink are connected through matter

A. conduction

B. radiation

C. convection

D. combustion

Answers

Answer:

The answer is A conduction.

Explanation:

Answer:

hellowwwwwww njr perlo

Explanation:

What do we mean when we say that momentumis a vector

Answers

Answer:

it has both magnitude and direction.

Explanation:

What is the weight of a
63.7 kg person?

Answers

Answer:

A person that weighs 63.7 kg weighs 63.7 kg

Explanation:

Too complicated to explain.

Answer: 140.4 pounds

Explanation:

what is the difference between circumstances and circumference??

pls ans asap​

Answers

Answer:

understand

Explanation:

hiiiiiiiiiiiiiiiiiiii

When does a metal atom stop reacting

Answers

Answer:

When a metal element reacts with a non-metal element an ionic compound is formed. An understanding of the way the elements are bonded allows us to explain their typical properties.

Reactions between metals and non-metals include:

sodium + chlorine → sodium chloride

magnesium + oxygen → magnesium oxide

calcium + chlorine → calcium chloride

Explanation:

In all of these reactions, the metal atoms give electrons to the non-metal atoms. The metal atoms become positive ions and the non-metal atoms become negative ions.

A metal atom often stop reacting when it has lost all of its outer electrons.

Metal atoms often have few electrons in their outer shell.

Non-metal atoms does have plenty of electrons in their outer shell.

A Metal atoms lose the electron, or electrons, when in their highest energy level and tend to be positively charged ions.

Non-metal atoms often gain an electron, or electrons, so as to be negatively charged ions.

The loss or gain of valence electrons make ions to work with the octet rule and become more stable.

Learn more from

https://brainly.com/question/21449177

What type of planets does the asteroid belt orbit?​

Answers

Answer:

Main Asteroid Belt: The majority of known asteroids orbit within the asteroid belt between Mars and Jupiter, generally with not very elongated orbits. The belt is estimated to contain between 1.1 and 1.9 million asteroids larger than 1 kilometer (0.6 mile) in diameter, and millions of smaller ones.

Explanation:

Hi!Most of these objects, called planetoids or asteroids meaning "star-like" orbit between Mars and Jupiter in a grouping known as the Main Asteroid Belt.

When a planet orbits the Sun, the
force of gravity pulls the planet
A. inward.
B. outward.
C. forward.
D. backward.

Answers

I’m not sure I think it’s A
I think it’s A not sure but sorry if not correct!


What quantity is measured on the x-axis of a position vs. time graph.

distance
time
velocity
position

Answers

Answer:

Velocity

Explanation:

Conservation of momentum

Answers

Answer:

8.6 m/s

Explanation:

From the question,

applying law of conservation of momentum

Total momentum before collision = Total momentum after collsion

mu+m'u' = mv+m'v'....................... Equation 1

make v' the susbject of the equation

v' = (mu+m'u'-mv)/m'.................. Euqation 2

Where m = mass of the ball, m' = mass of the can, u = initial velocity of the ball, u' = initial velocity of the can, v = Final velocity of the ball, v' = final velocity of the can.

Given: m = 1.2 kg, m' = 0.7 kg, u = 14 m/s , u' = 0 m/s (at rest), v = 9 m/s.

Substitute these values into equation 2

v' = [(1.2×14)+(0.7×0)-(1.2×9)]/0.7

v' = (16.8-10.8)/0.7

v' = 6/0.7

v' = 8.6 m/s

Answer all of those questions and you will get the brainiest

Answers

Answers:

1) A process that occurs when an object or a particle moves, referred to as kinetic energy

2) A potential energy is a stored amount of energy that changes depending on the relative positions.

3) Potential Energy is the energy stored in an object due to its position. Kinetic Energy is the energy of motion in a moving object.

4)

  a) C and B

  b) A

  c) From B to A or from C to A

  d) From A to B or from A to C

[tex]\huge\mathfrak\green{answer}[/tex]

1) Kinetic energy of an object is the measure of the work an object can do by the virtue of its motion.

For Example : A river flowing at a certain speed comprises kinetic energy as water has certain velocity and mass.

2) Potential energy is the energy held by an object because of its position relative to other objects, stresses within itself, its electric charge, or other factors.

For Example : A child at the top of the slide

3) KINETIC ENERGY

Kinetic energy is the kind of energy present in a body due to the property of its motionIt can be easily transferred from one body to anotherIt is relative with respect to natureFlowing water is one of the examples of kinetic energy

POTENTIAL ENERGY

Potential Energy is the type of energy present in a body due to the property of its stateIt is not transferableIt is non-relative with respect to natureWater present at the top of a hill is an example of potential energy

(make sure to draw a table and write them separately)

4)

a) C and B

b) A

c) B to A then C to A

d) A to B then A to C

(mark me brainliest please I need 1 more :))

[tex]\large\sf\green{thank \: you}[/tex]

500cm3 of water is to be jeated from room temperature 28oc to 100oc in order to prepare ahot cup pf coffee. What os the minimum heat required

Answers

Answer:

The minimum heat required is 171626 joules.  

Explanation:

By First Law of Thermodynamics, the amount of heat ([tex]Q[/tex]), in joules, is equal to the change in internal energy of water. The minimum heat required is the sensible heat necessary to heat up the water. That is:

[tex]Q = \rho\cdot V \cdot c\cdot \Delta T[/tex] (1)

Where:

[tex]\rho[/tex] - Density of water, in kilograms per cubic meter.

[tex]V[/tex] - Volume of water, in cubic meters.

[tex]c[/tex] - Specific heat of water, in joules per kilogram-degree Celsius.

[tex]\Delta T[/tex] - Change in temperature, in degrees Celsius.

If we know that [tex]\rho = 1000\,\frac{kg}{m^{3}}[/tex], [tex]V = 5\times 10^{-4}\,m^{3}[/tex], [tex]c = 4186\,\frac{J}{kg\cdot ^{\circ}C}[/tex] and [tex]\Delta T = 82\,^{\circ}C[/tex], then the minimum heat required is:

[tex]Q = 171626\,J[/tex]

The minimum heat required is 171626 joules.  

A car with a mass of 1400 kg moves along the ice with a constant velocity of 18.0 m/s. What is the car’s momentum?

Answers

Answer:

M= mv= 1400 x 18= 25200 kg x m/s

I don't understand how to do this?

Answers

No I’m French sorryyyyyyy
The third one bc the weight of 0.23kg IS 0.23kg, and N is Newtons not weight. Kg is Kilograms which is a form of weight

Answer the question?

Answers

I don’t know the answer to your question BUT DONT CLICK THE LINK THE BOT GAVE YOU THEY CAN HACK YOU JUST REPORT

A train whistle is 580 Hz when
stationary. It is moving away from
you at 18.8 m/s. What frequency
do you hear?
(Speed of sound = 343 m/s)
(Unit = Hz)
HELP PLS!!

Answers

Answer:

Did you find the answer for this?

Explanation:

Answer:

550Hz

Explanation:

Identify the relationship between kinetic energy and gravitational potential energy for the cyclist at each position

Answers

Answer:

follows are the responses to the given question:

Explanation:

The kinetic energy of every object moving.  [tex]PK=m \times v^2[/tex] any entity lifted against the strength of gravity stores elastic potential of gravity.

[tex]PE = height \times mass \times g[/tex]

Its total power of an independent device stays constant underneath the Mass conservation on Energy and it is, the kinetic energy plus potential energy is just like a fixed [tex](KE+PE=Standard)[/tex]. So, if KE improves, it is valid that PE declines.

If the PE is now at least then KE has been at the highest. It is also valid that KE is reduced as PE is increased as well as the maximum PE, the minimum KE.

The crane pull up the mass with 1150 N. Find the acceleration the
mass.m = 100kg
Kren tersebut menarik naik jisim itu dengan 1150 N. Cari daya
paduan pada jisim itu
[use gravitational acceleration, g = 9.81 m s?]​

Answers

Answer:

-1.69 m/s²

Explanation:

We are told the crane pulls up the mass with a force of 1150 N.

This means it is in an opposite direction to gravity and thus acceleration(a) is negative.

Now, the gravity is acting downwards, thus, total force is;

F = mg - ma

1150 = 100(9.81 - a)

Divide both sides by 100 to get;

11.5 = 9.81 - a

a = 9.81 - 11.5

a = -1.69 m/s²


Arrange these source charges in order from least to greatest magnitude.

A. A, B, C, D
B. B, D, C, A
C. C, A, B, D
D. D, B, A, C

Answers

Answer:

option c is the right answer

Answer:

D, B, A, C

Explanation:

The more lines, the greater the charge.

1. A block of aluminum occupies
a volume of 15.0 mL and
weighs 40.5 g. What is its
density?

Answers

Answer:

2700g/L

Explanation:

D=m/v

40.5g/0.015L

Which of the following statements is true of gravity?
A. Gravity decreases rapidly as the distance between two objects increases, especially when considering distances between objects in space
B. Gravity is affected by the weight of two objects that attract each other and the distance between them.
C. Both A and B are correct.
D. Neither A or B is correct.

Answers

I believe the answer is C. But I’m not 100 percent sure. Hopefully you already figured out the correct answer.

ignoring friction, what is the mass of an object accelerating at 1.8m/s2 to which an unbalanced force of 42 Newtons has been applied?​

Answers

Explanation:

Newton's second law:

F = ma

42 N = m (1.8 m/s²)

m = 23 kg

An object accelerating at 1.8 m/s² to which an unbalanced force of 42 Newtons has been applied, mass of object is  23 kg.

What is force?

A force is an effect that can alter an object's motion according to physics. An object with mass can change its velocity, or accelerate, as a result of a force. An obvious way to describe force is as a push or a pull. A force is a vector quantity since it has both magnitude and direction.

Given in the question  the mass of an object accelerating at 1.8 m/s² to which an unbalanced force of 42 Newtons has been applied is ,

Using Newton's second law force is given as

F = ma

42 N = m (1.8 m/s²)

m = 23 kg

An object accelerating at 1.8 m/s² to which an unbalanced force of 42 Newtons has been applied, mass of object is  23 kg.

To learn more about force refer to the link:

brainly.com/question/13191643

#SPJ2

Write down three facts you about motion
Write Them in complete sentences

Answers

Answer:

Kindly check explanation

Explanation:

Motion of an object could be explainwd as how a body changes position over time. Some of the proven facts about motion are stated by Sor Isaac Newton, named the Laws of motion :

1. A body will continue on it's state of rest or uniform motion in a straight line unless acted upon by a force to make it act otherwise.

2.) The second law explains that the force acting in an object is a product of the mass and acceleration.

Force = mass * acceleration due to gravity

3.) To every action, there is an equal and opposite reaction.

That is ; applied force in the positive direction on an object, yield an equal amount of force in the opposite direction.

An object spun around in a circular motion such That’s is frequency is 24Hz . What is the period of its rotation?

Answers

Answer:

It would spin ifintely

Explanation:

Suppose your friend investigated the color of pea pods and concluded that green pods (G) were dominant over yellow pods (g).

Answers

Answer:

Terms in this set (25) Mendel crossed true-breeding plants having yellow peas with plants having green peas. The resulting plant had all yellow peas. An F1 cross resulted in 3/4ths of the plants having yellow peas and 1/4th of the plants having green peas.

Explanation:

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