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
Misha Larkins [42]
3 years ago
14

When 1 kg of water and 1 kg of wood absorb the same amount of heat, the change in temperature of the wood is greater than the ch

ange in temperature of the water. which property helps to explain this difference?
A. Intermolecular forces in water are greater than those in wood.
B. Intermolecular forces in water are less than those in wood.
C. The latent heat of fusion of water is less than that of wood.
D. The latent heat of fusion of water is greater than that of wood.
Physics
1 answer:
vampirchik [111]3 years ago
8 0

Your Answer Will Be C

You might be interested in
a ball at rest starts rolling down a hill with a constant acceleration of 3.2 meters/second2. what is the final velocity of the
Y_Kistochka [10]

Answer:

3.2(6.0) = 19.2 m/s

Explanation:

6 0
3 years ago
The index of refraction is the ratio of the speed of light in a vacuum to the speed of light in a medium. Which true statement i
Alika [10]

Answer:

A. Materials with a low index of refraction cause light to refract very little.

7 0
3 years ago
Read 2 more answers
Potassium is a crucial element for the healthy operation of the human
Degger [83]

Answer:

1

  The mass of the Potassium-40 is  m_{40}} = 2.88*10^{-6} kg

2

  The Dose per year in Sieverts is   Dose_s = 26.4 *10^{-10}

Explanation:

From the question we are told that

   The isotopes of potassium in the body are Potassium-39, Potassium-40, and Potassium- 41

    Their abundance is 93.26%, 0.012% and 6.728%

   The mass of potassium contained in human body is  m = 3.0 g = \frac{3}{1000} = 0.0003 \ kg per kg of the body

    The mass of the first body is  m_1 = 80 \ kg

Now the mass of  potassium  in this body is mathematically evaluated as

       m_p =  m * m_1

substituting value

       m_p =  80  * 0.0003

      m_p  =0.024 kg

The amount of Potassium-40 present  is mathematically evaluated as

      m_{40}} =0.012% * 0.024

      m_{40}} = \frac{0.012}{100}  * 0.024

      m_{40}} = 2.88*10^{-6} kg

The dose of energy absorbed per year is mathematically represented as

          Dose  = \frac{E}{m_1}

Where E is the energy absorbed which is given as E = 1.10 MeV = 1.10 * 10^6 * 1.602*10^{-19}

    Substituting value

            Dose  = \frac{ 1.10 * 10^6 * 1.602*10^{-19}}{80}

            Dose  = 22*10^{-10} J/kg

The Dose in Sieverts is evaluated as

       Dose_s = REB * Dose

       Dose_s = 1.2 * 22*10^{-10}

       Dose_s = 26.4 *10^{-10}

             

3 0
3 years ago
How far from the castle wall does the launched rock hit the ground?
lina2011 [118]
King Arthur's knights use a catapult to launch a rock from their vantage point on top of the castle wall, 14 m above the moat. The rock is launched at a speed of 27 m/s and an angle of 32degrees above the horizontal.
4 0
3 years ago
Read 2 more answers
What is the peak emf generated by a 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally h
zysi [14]

Complete question:

What is the peak emf generated by a 0.250 m radius, 500-turn coil is rotated one-fourth of a revolution in 4.17 ms, originally having its plane perpendicular to a uniform magnetic field 0.425 T. (This is 60 rev/s.)

Answer:

The peak emf generated by the coil is 15.721 kV

Explanation:

Given;

Radius of coil, r = 0.250 m

Number of turns, N = 500-turn

time of revolution, t = 4.17 ms = 4.17 x 10⁻³ s

magnetic field strength, B = 0.425 T

Induced peak emf = NABω

where;

A is the area of the coil

A = πr²

ω is angular velocity

ω = π/2t = (π) /(2 x 4.17 x 10⁻³) = 376.738 rad/s =  60 rev/s

Induced peak emf = NABω

                               = 500 x (π x 0.25²) x 0.425 x 376.738

                               = 15721.16 V

                               = 15.721 kV

Therefore, the peak emf generated by the coil is 15.721 kV

5 0
3 years ago
Other questions:
  • Jed drops a 18 kg box off of the Eiffel tower. After 6.1 seconds, how fast is the box moving (neglect air resistance.)
    14·2 answers
  • A proton moves with a velocity of v with arrow = (3î − 5ĵ + k) m/s in a region in which the magnetic field is B with arrow = (î
    8·1 answer
  • Part II # 1 A mass on a string of unknown length oscillates as a pendulum with a period of 4 sec. What is the period if: (Parts
    10·1 answer
  • We had an experiment that is entitled "balloon rocket" it is an experiment using the force of balloon to make the straw move. it
    5·1 answer
  • Which of the following are likely to form a covalent bond?
    15·2 answers
  • What changes would occur at a molecular level if a liquid is placed in cool conditions?
    11·2 answers
  • Lasers emit light of a certain frequency in one, precise direction. The light that a laser emits can be tuned to have a high fre
    13·2 answers
  • A man on the Moon observes two spaceships coming toward him from opposite directions at speeds of 0.600c and 0.600c. What is the
    13·1 answer
  • An expansion valve does work on 100 g of water. The system is isolated, and all of the work is used to convert the 90°C water in
    9·1 answer
  • You throw an orange out a widow at a height of 12 meters upwards at an angle of 32 to the horizontal with an initial velocity of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!