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vagabundo [1.1K]
3 years ago
5

1 point

Physics
1 answer:
AnnyKZ [126]3 years ago
5 0

Answer:the same

Explanation:their moving at the same speed and collapse

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I think it’s d but I’m not sure
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A 5.0 kg wooden block is in free fall at 10 m/s. What is the Kinetic Energy for the wooden block?
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Answer:

250 J

Explanation:

Apply the formula:

K = 1/2.m.v²

K = 1/2.5.10²

K = 1/2.5.100

K = 5.50

K = 250 Joules

But, remember that if the speed is accelerating or not, if it is, then we need to know the point in time that the question is asking for the Kinetic Energy.

In this case, I think it is just a constant speed.

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A wave with low energy will also have
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A piece of iron of mass 200g and tempreture 300°C is dropped into 1.00 kg of water of tempreture 20°C. Predict the final equilib
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Answer:

The final equilibrium T_{f} = 25.7[°C]

Explanation:

In order to solve this problem we must have a clear concept of heat transfer. Heat transfer is defined as the transmission of heat from one body that is at a higher temperature to another at a lower temperature.

That is to say for this case the heat is transferred from the iron to the water, the temperature of the water will increase, while the temperature of the iron will decrease. At the end of the process a thermal balance is found, i.e. the temperature of iron and water will be equal.

The temperature of thermal equilibrium will be T_f.

The heat absorbed by water will be equal to the heat rejected by Iron.

Q_{iron} = Q_{water}

Heat transfer can be found by means of the following equation.

Q_{iron}=m*C_{piron}*(T_{i}-T_{f})

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T_i = Initial temperature of the iron = 300 [°C]

T_f = final temperature [°C]

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Cp_iron = 437 [J/kg*°C]

Cp_water = 4200 [J/kg*°C]

0.2*437*(300-T_{f})=1*4200*(T_{f}-20)\\26220-87.4*T_{f}=4200*T_{f}-84000\\26220+84000=4200*T_{f}+87.4*T_{f}\\110220 = 4287.4*T_{f}\\T_{f}=25.7[C]

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2 years ago
A client is undergoing diagnostics for an alteration in thyroid function. What physiologic function is affected by altered thyro
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Answer:

The thyroid is a butterfly-shaped gland that sits low on the front of the neck.It plays a major role in the metabolism, growth and development of the human body

Explanation:

The physiologic function affected by altered thyroid function are:

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There do not seem to be organs and tissues that are not affected by thyroid hormones

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