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
Nana76 [90]
1 year ago
9

Does solid give out or take in energy when it melts?

Physics
1 answer:
vampirchik [111]1 year ago
8 0

Explanation:

i think it give out energy when it melts

You might be interested in
What is the best example of rotational motion
quester [9]
A rotation motion is a motion that takes place around a fixed axis.

Like gears turning on each other.
7 0
3 years ago
Read 2 more answers
A 4.40-m-long, 500 kg steel uniform beam extends horizontally from the point where it has been bolted to the framework of a new
icang [17]

Answer:

Torque=13798.4 N.m

Explanation:

Given data

Mass of beam m₁=500 kg

Mass of the person m₂=70 kg

length of steel r₁=4.40m

center of gravity of the beam is at r₂=r₁/2 =4.40/2 = 2.20m

To find

Torque

Solution

Torque due to beam own weight

T_{1}=m_{1}gr_{1}\\ T_{1}=500*2.2*9.8\\T_{1}=10780N.m

Torque due to person

T_{2}=m_{2}r_{2}g\\T_{2}=70*(4.40)*(9.8)\\T_{2}=3018.4 N.m

Now for total torque

T_{total}=T_{1}+T_{2}\\T_{total}=10780+3018.4\\T_{total}=13798.4N.m

4 0
3 years ago
A 72.0-kg skydiver is falling at a terminal velocity of 79.0 m/s. Which equation should be used to calculate the diver’s kinetic
rodikova [14]

Answer:

KE= 1/2 * mass * Velocity^2

Explanation:

1/2 * 72.0kg* 79^2 m/s = 224676 J

4 0
3 years ago
two object gravitationally attract with a force of 20N.if the distance between the two object centers is doubled, then what is t
Usimov [2.4K]
Gravity decreases with the square of the distance, so the new force is (20)/(2*2) = 5N.
8 0
3 years ago
Why did the potassium permanganate crystals start to dissolve in water without being stirred or shaken
KonstantinChe [14]
<span>because the substance in the potassium permanganate crystals are permeable to water, so that means it will dissolve instantly while poured into water </span>
7 0
3 years ago
Read 2 more answers
Other questions:
  • Anxiety disorders are
    5·1 answer
  • In the early 19th century Christian Doppler, an Austrian physicist, proposed a theory regarding the properties of a moving sourc
    13·2 answers
  • A woman is standing at the rim of a nonuniform cylindrical horizontal platform initially at rest. The platform is free to rotate
    15·1 answer
  • LED light bulbs are more energy efficient, last longer, cost more, and have a smaller environmental impact from manufacture to r
    15·1 answer
  • Calculate the earth's average speed relative to the sun.
    15·1 answer
  • a truck of mass 2 500 kg travelling at the speed of 20 ms–1 to the right collide head-on with another car of mass 1 000 kg. If b
    10·1 answer
  • A mysterious crate has shown up at your place of work, Firecracker Company, and you are told to measure its inertia. It is too h
    11·1 answer
  • This graph represents an endothermic reaction. What does it show about the potential energy of reactants and products? HELP ASAP
    13·2 answers
  • Is a motor polarized or not?
    8·1 answer
  • Mark pushes his broken car 140 m down the block to his friend's house. He has to exert a 160 N horizontal force to push the car
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!