The energy due to heat flow, i.e. the heat energy, is proportional to the product of the mass, the specific heat capacity, and the change in temperature:

$Heat=mass\times \text{specific heat capacity }\times\Delta T$

From which you obtain:

$\Delta T=\dfrac{Heat}{mass\times \text{specific heat capacity}}$

That equation tells that the change in temperature is inversely related to the product of the mass and the specific heat.

In the problem, the masses of the samples of copper and aluminum are equal (5.00g) and both samples receive equal amounts of energy due to heat flow, thus the only difference is the specific heat capacity of each sample.

From the above stated relationship between the change in temperature, the heat, the mass, and the specific heat capacity, under the assumption of all the other conditions equal (heat energy and mass), the higher the specific heat capacity the lower the change in temperature, and the lower the specific heat capacity the greater the change in temperature.

The heat capacity of copper (0.09 cal/g°C) is lower than the specific heat capacity of aluminum is (0.22 cal/g°C), thus the increase in temeperature of the copper sample will be greater than that of the aluminum sample. This means that the copper will get hotter than the aluminum (option c.)

5 0

3 years ago

What is the significance of the word universal in Newton's law of universal gravitation

mart [117]

Hey I am here to help you.

Newton's law of universal gravation states that every particle attracts every other particles in the universe with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers

I believe that this answer was helpful.

5 0

3 years ago

CAN SOMEONE TELL ME THE answer for this ?

Paladinen [302]

Answer:

b. light from earth is reflected by the moon surface

4 0

3 years ago

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On a spaceship designed to support a multiyear voyage to the outer planets of the solar system, plants will be grown to provide

alexira [117]

Answer:

A mixture of blue & red light.

Explanation:

During photosynthesis, the oxygen delivered emanates from water particles and if a weighty isotope of oxygen atom was noticed in delivered sub-atomic oxygen, the water atoms were marked with the hefty isotope.

In order to maximize the growth rate of the plant, the required wavelength of light to be used is a mixture of blue & red light. This is on the grounds that as the absorption optima of plant's photoreceptors are at wavelength frequency of red and blue light, subsequently the combination of red and blue light would be ideal for plant growth and development.

The productivity of red (650–665 nm) LEDs on plant development is straightforward on the grounds that these wavelength frequencies entirely fit with the retention pinnacle of chlorophylls and phytochrome, while the enhanced blue light presented the possibility that development under regular light could be mirrored utilizing blue and red LEDs with negligible use of energy.

6 0

3 years ago