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earnstyle [38]
3 years ago
6

Specific heat is the amount of heat required to raise the temperature of a material by 1°C per what unit?

Physics
2 answers:
Nataly [62]3 years ago
4 0

Answer:

Per unit mass

Explanation:

When some heat energy "Q" is given to an object of mass "m"  to raise its temperature by "ΔT", then the energy is given as

Q = m c ΔT

where c = specific heat of the object

rearranging the above equation

c = Q/(m ΔT)

for "1 °C" rise of temperature , ΔT = 1

So specific heat is defined as amount of heat required to raise the temperature by 1 °C per unit mass of the object.

nydimaria [60]3 years ago
3 0

The heat required to raise the temperature of the unit mass of a given substance by a given amount (usually one degree).


or C. Mass if you're on plato

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Object 1 of mass m moves with speed v in the positive direction. Object 2 of mass 3 m moves with speed 4 v in the negative x-dir
Klio2033 [76]

Answer:

This means that the kinetic energy of second object is 48times that of the first object

Explanation:

Kinetic energy is the energy possessed by a body by virtue of its motion e.g motion of an accelerating car. Mathematically,

Kinetic energy = 1/2mv² where;

m is the mass of the object

v is the velocity of the object

If Object 1 of mass m moves with speed v in the positive direction, its kinetic energy will be expressed as;

K1 = 1/2mv²

For Object 2 of mass 3m moving with speed 4v in the negative x-direction, its kinetic energy can be expressed as;

K2 = 1/2(3m)(4v)²

K2 = 1/2(3m)(16v²)

K2 = (3m)(8v²)

K2 = 24mv²

To compare the kinetic energy of both bodies, we will take the ratio of K2:K1 to have;

K2/K1 = 24mv²/(1/2)mv²

K2/K1 = 24/(1/2)

K2/K1 = 48

K2 = 48K1

This means that the kinetic energy of second object is 48times that of the first object and moving in the negative x direction since the body of mass 3m initially moves in the negative x direction.

3 0
4 years ago
18. How does magnetic force affect the energy in a system of magnets when the magnets are released and begin to move? a The magn
astra-53 [7]

When the magnets are released and begin to move, the magnetic force changes potential energy into kinetic energy;<u> option D</u>

<h3>What is magnetic force?</h3>

Magnetic force can be defined as the force of attraction or repulsion that is felt or produced between the magnetic poles and electrically charged moving particles.

Magnetic force is the force that exists due to the attractio or repulsion of objects place around the region of space where a maget exerts its force.

When a magnet is released ai a system of magnets and allowed to move it increases the kinetic eergy of the system by converting potential energy to kinetic energy.

Learn more about magnetic force at: brainly.com/question/28989998

#SPJ1

5 0
1 year ago
What are noble gases?
Bas_tet [7]

Answer:

noble gases are basically a group of gases that are similar in their chemical compounds, theres six of them : helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and the radioactive radon (Rn).

~batmans wife dun dun dun.....

6 0
3 years ago
a man counts 6 waves on a pond in 10 seconds. the distance between them is 40 cm. what is their speed?​
gavmur [86]

Answer:

so a man counts 6 waves on a pound in 10 second

Explanation:

6×10 = 60

60/40

so the answer is3

7 0
3 years ago
The resistance of a 24 W, 12 V filament lamp depends on the current flowing through the lamp. For currents up to 0.8 A, the resi
Harman [31]

Answer:

V=IR

V=0.8×2.5

V=2V

where V=potential difference

I=Current

R=Resistance

.........

5 0
3 years ago
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