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
Flauer [41]
3 years ago
8

Heat is added to a substance, but its temperature does not rise. Which one of the following statements provides the best explana

tion for this observation?
Physics
2 answers:
GalinKa [24]3 years ago
7 0

Answer:

Heat is added to a substance, but its temperature does not rise. Which one of the following statements provides the best explanation for this observation? the substance must be a gas. the substance must be a non-perfect solid. the substance undergoes a change of phase. the substance has unusual thermal properties. the substance must be cooler than its environment.

hoa [83]3 years ago
6 0

Answer:

(A) The substance must be a gas.

B) The substance must be a non-perfect solid.

C) The substance undergoes a change of phase.

D) The substance has unusual thermal properties.

E) The substance must be cooler than its environment.

Answer is c was correct answer

You might be interested in
An 8000-N car is traveling at 12 m/s along a horizontal road. When the brakes are applied, the car skids (slides) to a stop in 4
kicyunya [14]

Answer:

192000 J or 192 kJ

Explanation:

Work done = Force × distance moved along the direction of force.

From the question,

W = F×d............... Equation 1

Where W = work done by the car, F = Force of the car, d = distance move by the car along the direction of the force.

We can calculate for d using the equation of motion

d = (v+u)t/2..................... Equation 2

Where v = Final velocity of the car, u = Initial velocity of the car, t = time.

Given: u = 12 m/s, v = 0 m/s(skids to a stop), t = 4.0 s

Substitute into equation 2

d = (12+0)4/2

d = 24 m.

Also given: F = 8000 N

Substitute into equation 1

W = 8000×24

W = 192000 J

W = 192 kJ.

5 0
3 years ago
What's the toughest animal in the world
eduard

Explanation:

it can be giraffe.

if this helps you then please make me brainlist please

6 0
2 years ago
Read 2 more answers
A car starts from rest and reaches a velocity of 50.0 m/s in 41.0 seconds. What is the
Nataly_w [17]

Answer:

1.21 or 1.2 acceleration

Explanation:

i think it is 50.0/41.0

which would equal 1.21(depending on if you round it)

7 0
2 years ago
Read 2 more answers
a single 1,300 jk cargo car is rolling along a train track at 2.0 m/s when 400 kg of coal is dropped vertically into it. what is
tensa zangetsu [6.8K]

Answer:

1.53 m/s

Explanation:

Given:

Mass of the car (M) = 1300 kg

Mass of the coal (m) = 400 kg

Initial velocity of the car (U) = 2 m/s

Initial velocity of the coal (u) = 0 m/s (Since it is dropped)

When the coal is dropped into the car, then they move with same final velocity.

Let the final velocity be 'v' m/s.

For a closed system, the law of conservation of momentum holds true.

So, initial momentum is equal to final momentum of the car-coal system.

Initial momentum of the car = MU=1300\times 2=2600\ Ns

Initial momentum of the coal = mu=0\ Ns

Total initial momentum is the sum of the above two momentums.

So, total initial momentum = 2600 + 0 = 2600 Ns

Now, final momentum is given as the product of combined mass and final velocity. So,

Final momentum of the system = (M+m)v=(1300+400)v=1700v

Now, from law of conservation of momentum,

Initial momentum = Final momentum

2600=1700v\\\\v=\frac{2600}{1700}\\\\v=1.53\ m/s

Therefore, the final velocity of either of the two masses is same is equal to 1.53 m/s.

4 0
3 years ago
What Is a mineral made of oxidized hydrogen
FromTheMoon [43]
Rust is your answer be cause the metal is creating a meneral coat


6 0
3 years ago
Read 2 more answers
Other questions:
  • Tiana jogs 1.5 km along a straight path and then turns and jogs 2.4 km in the opposite direction. She then turns back and jogs 0
    11·1 answer
  • At what speed do a bicycle and its rider, with a combined mass of 100 kg, have the same momentum as a 1400 kg car traveling at 2
    15·1 answer
  • Which type of solute is least likely to dissolve in water
    15·2 answers
  • A substance made of copper atoms and chlorine atoms combined together will have the same chemical properties as copper and chlor
    13·1 answer
  • An atom emits a light wave with a wavelength of 449 nm. what type or color of light does this represent?
    12·1 answer
  • A transverse wave is found to have a vertical distance of 4 cm from a trough to a crest, a frequency of 12 Hz, and a horizontal
    5·1 answer
  • a 60 kg woman in a elevator is accelerating upward at a rate of 1.2 m/s2. What is the gravitational force acting upon the woman?
    8·1 answer
  • The hardest known natural material is _____. <br> jade<br> quartz<br> diamond<br> talc
    13·2 answers
  • Want brainly?? Answer this question correctly and I got you.
    13·2 answers
  • A solenoid 91.0 cm long has a radius of 1.50 cm and a winding of 1300 turns; it carries a current of 3.60 A. Calculate the magni
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!