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
natka813 [3]
3 years ago
11

Sarah heated two cubes of aluminum to 50°C. Cube A has a volume of four cubic centimeters. Cube B has a volume of two cubic cent

imeters. If the cubes do not touch each other, which of these statements is true?
Cube A has a higher temperature than cube B.

Cube B has a higher temperature than cube A.

Cube A has more thermal energy than cube B.

Cube B has more thermal energy than cube A.

electrical energy

electromagnetic energy
Physics
2 answers:
dalvyx [7]3 years ago
6 0

Cube A has more thermal energy than cube B.

Explanation:

It is obvious that cube A has gained more thermal energy compared to cube B.

From the description of the experiment, both cubes had the same temperature which is 50°C. Temperature is the degree of hotness or coldness of a body.

Thermal energy is a form of energy expressed as heat in a body.

Cube A has a higher volume because it has gained more thermal energy than Cube B.

Thermal energy increases the rate of vibration of atoms in the crystal lattice of the solid. The more the thermal energy, the more the vibration. This is  why Cube A has expanded so much and changed volume.

Learn more:

Temperature and heat brainly.com/question/914750

#learnwithBrainly

balandron [24]3 years ago
4 0

Answer:

Cube B has more thermal energy than cube A.

Explanation:

Thermal energy is the measure of the average kinetic energy of the molecules of a matter, which is also inversely proportional to the mass. Since cube B has lesser mass, then fewer molecules. Thus it would have more thermal energy than that of cube A.

You might be interested in
When using the right-hand rule to determine the direction of the magnetic force on a charge, which part of the hand points in th
Y_Kistochka [10]
Your thumb points in the direction of the charge.

6 0
3 years ago
Read 2 more answers
There are three ways to give an object a static charge. They are friction, conduction and induction. Two pieces of cellophane ta
Novay_Z [31]

The tape is charged by friction and her hand has an induced opposite charge. They therefore attract.

8 0
3 years ago
Read 2 more answers
The mass luminosity relation L  M 3.5 describes the mathematical relationship between luminosity and mass for main sequence sta
ivanzaharov [21]

Answer:

(a) <u>11.3 L</u>

(b) <u>10 M</u>

Explanation:

The mass-luminosity relationship states that:

Luminosity ∝ Mass^3.5

Luminosity = (Constant)(Mass)^3.5

So, in order to find the values of luminosity or mass of different stars, we take the luminosity or mass of sun as reference. Therefore, write the equation for a star and Sun, and divide them to get:

Luminosity of a star/L = (Mass of Star/M)^3.5 ______ eqn(1)

where,

L = Luminosity of Sun

M = mass of Sun

(a)

It is given that:

Mass of Star = 2M

Therefore, eqn (1) implies that:

Luminosity of star/L = (2M/M)^3.5

Luminosity of Star = (2)^3.5 L

<u>Luminosity of Star =  11.3 L</u>

(b)

It is given that:

Luminosity of star = 3160 L

Therefore, eqn (1) implies that:

3160L/L = (Mass of Star/M)^3.5

taking ln on both sides:

ln (3160) = 3.5 ln(Mass of Star/M)

8.0583/3.5 = ln(Mass of Star/M)

Mass of Star/M = e^2.302

<u>Mass of Star = 10 M</u>

3 0
3 years ago
A parked car begins to roll down a hill, what can you conclude from that observation?
Fynjy0 [20]

Answer:

its The rolling friction is greater than the force of the car’s weight against the hill.

and A force was required to start the car rolling.

Explanation:

3 0
3 years ago
BRAINLIEST PLZ HELP!
balu736 [363]
The correct answer should be A
5 0
3 years ago
Other questions:
  • A cylindrical tube sustains standing waves at the following frequencies: 600 Hz, 800 Hz, and 1000 Hz. The tube does not sustain
    9·1 answer
  • To turn a coil of wire into a magnet, run a(n) ____ through it.
    12·2 answers
  • When voltage increases and resistance remains constant what must happen to current? A) Current must decrease. B) Current must in
    15·2 answers
  • Do you support trucks are identical each box loaded on the truck has the same mask choose the truck that has the greatest force
    13·1 answer
  • A graph of gas pressure versus the number of particles in a container is straight line.which other relationship will have a simi
    6·1 answer
  • A certain wire has a length l and a resistance r. It is stretched uniformly to a length of 2l. The resistance of the wire after
    12·1 answer
  • Consider a basketball player spinning a ball on the tip of a finger. If a player performs 1.91 J1.91 J of work to set the ball s
    9·1 answer
  • A car of mass 500 kg increases its velocity from 40 metre per second to 60 metre per second in 10 second find the distance trave
    9·1 answer
  • The velocity of a passenger relative to a boat is -vpb. The velocity of the boat relative to the river it is moving on is vbr. T
    7·1 answer
  • What is measurement???<br>knahi pani nepali ca jasto chaxenw​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!