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
Two bodies, one hot and one cold, are kept in vacuum. What will happen to the temperature of the hot body after some time?
SVETLANKA909090 [29]

Answer:

vacuum have no air. so, the hot body will remain unchanged in temperature

Explanation:

4 0
3 years ago
A bowling ball is dropped off the top of the Eiffel Tower. If the Eiffel Tower is 300 meters
patriot [66]

Answer:

7.82 s

Explanation:

Given:

Δy = 300 m

v₀ = 0 m/s

a = 9.8 m/s²

Find: t

Δy = v₀ t + ½ at²

(300 m) = (0 m/s) t + ½ (9.8 m/s²) t²

t = 7.82 s

5 0
3 years ago
calculate the kinetic energy of a car with a mass of 500kg traveling at a velocity of 10m/s^2 north. A) 2,500j B) 25,000j C) 50,
Arte-miy333 [17]
The correct answer would be A) 2,500j
8 0
3 years ago
Which of the following quantities can be determined from a speed-time graph of a particle travelling in a straight line?
enot [183]

The answer is:

Both the distance traveled in a given time and the magnitude of the acceleration at a given instant


Hope I Helped!

8 0
3 years ago
Read 2 more answers
Two charged spheres are 20 cm apart and exert an attractive force of 8 x 10-9 n on each other. What will the force of attraction
Pavel [41]

Answer:

3.2\cdot 10^{-8} N

Explanation:

The inital electrostatic force between the two spheres is given by:

F=k\frac{q_1 q_2}{r^2}

where

F=8\cdot 10^{-9} N is the initial force

k is the Coulomb's constant

q1 and q2 are the charges on the two spheres

r is the distance between the two spheres

The problem tells us that the two spheres are moved from a distance of r=20 cm to a distance of r'=10 cm. So we have

r'=\frac{r}{2}

Therefore, the new electrostatic force will be

F'=k\frac{q_1 q_2}{(r')^2}=k\frac{q_1 q_2}{(r/2)^2}=4k\frac{q_1 q_2}{r^2}=4F

So the force has increased by a factor 4. By using F=8\cdot 10^{-9} N, we find

F'=4(8\cdot 10^{-9} N)=3.2\cdot 10^{-8} N

6 0
3 years ago
Other questions:
  • You are working during your summer break as an amusement park ride operator. The ride you are controlling consists of a large ve
    8·1 answer
  • If object and fluid are same density what will happen
    9·1 answer
  • A particle with charge q = 10-9 C and mass m = 5.0 x 10-9 kg is moving in a magnetic field whose magnitude is 0.003 T. The speed
    6·1 answer
  • Which explains why more energy is released in nuclear reactions then in chemical reactions
    8·1 answer
  • A rocket is fired at 100 m/s at an angle of 37, how many seconds did it take to get to the top?
    12·1 answer
  • Explain how carbon is cycled between the hydrosphere and geosphere. Use specific examples.
    7·1 answer
  • How do protons ever fuse together in the presence of the electromagnetic force? There is another force involved here called the
    9·1 answer
  • What is the minimum work needed to push a 920-kg car 310 m up along a 6.5 ∘incline? Ignore friction.Express your answer using tw
    12·1 answer
  • The density of a solid or liquid material divided by the density of water is called
    12·1 answer
  • Perform the following mathematical operation and report answer to the correct number of significant figures 143.6 divided by 21.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!