Physics, 19.05.2020 02:07, rickespey9037

Suppose you have 1 kg each of iron, glass, and water, and all three samples are at 10°C. Rank the samples from lowest to highest temperature after 100 J of energy is added to each by

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answered: bxbysoso

The rank of temperature from lowest to highest is

Lowest --- Middle --- Highest

Water --- Glass --- Iron

Explanation:

From the question we are told that

The mass of iron, glass, and water is $m_i =m_g = m_w= 1 \ kg$

The temperature of iron, glass, and water is $T_i = T_g = T_w = 10^oC = 10 + 273 = 283 \ K$

The energy added is E = 100J

The specific heat of iron is a constant with a value

c_i = 449 J / kg ^oC

The specific heat of glass is a constant with a value

c_g = 670 J / kg ^oC

The specific heat of water is a constant with a value

c_w = 4183 J / kg ^oC

Now energy transferred to these substances can be mathematically represented as

$E = mc_p \Delta T$

Now from the question the mass of the substance and the energy added are constant

$\Delta T \ \ \ \alpha\ \ \ \frac{1}{c_p}$

Thi means that the change in temperature is inversely proportional to the specific heat of the substance

With this knowledge we can deduce that

The substance with the highest temperature is Iron

followed by glass

and then water

answered: Guest

Is a vector quantity that refers to "the rate at which an object changes its position." imagine a person moving rapidly - one step forward and one step back - always returning to the original starting position. while this might result in a frenzy of activity, it would result in a zero velocity. because the person always returns to the original position, the motion would never result in a change in position. since velocity is defined as the rate at which the position changes, this motion results in zero velocity. if a person in motion wishes to maximize their velocity, then that person must make every effort to maximize the amount that they are displaced from their original position. every step must go into moving that person further from where he or she started. for certain, the person should never change directions and begin to return to the starting position.

answered: Guest

The answer is frictional force

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Suppose you have 1 kg each of iron, glass, and water, and all three samples are at 10°C. Rank the sa...