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3 years ago

¿Que es el equilibrio termico?

Physics

2 answers:

Sunny_sXe [5.5K]3 years ago

6 0

Answer:

Two physical systems are in thermal equilibrium if there is no net flow of thermal energy between them when they are connected by a path permeable to heat. Thermal equilibrium obeys the zeroth law of thermodynamics.

Explanation:

anygoal [31]3 years ago

6 0

Answer: ^^

Explanation:

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What will a spring scale read for the weight of a 57.0-kg woman in an elevator that moves upward with constant speed of 5.0 m/s

Tanzania [10]

The spring scale will read 559 Newton's or 125.7 pounds.

4 0

3 years ago

An airplane has mass of 5,320 kg. At takeoff, how much lift force is necessary to accelerate the plane upward at a rate of 1.40m

Ira Lisetskai [31]

Answer:

<u>59637.2 N</u> force is required to lift the plane upward.

Explanation:

Mass of the aeroplane (m) = 5320 kg

Acceleration of the plane upward at a rate (a) = 1.40 m/s

"Newton's second law of motion", F - R = ma, where, "force" (F) acting on an object, (R) "resistive force", "mass" (m) of an object and "acceleration" (a).

Force = Resistive force + (mass × acceleration)

Resistive force = mass of an object × acceleration due to gravity. ( we know that acceleration due to gravity is $\left.9.8 \mathrm{m} / \mathrm{s}^{2}\right)$

Resistive force = 5320 × 9.81

Resistive force = 52189.2 N

Force = 52189.2 + (5320kg × 1.40 m/s)

Force = 59637.2 N

At takeoff, <u>59637.2 N</u> force is necessary to accelerate the plane upward at a rate of 1.40 m/s .

7 0

3 years ago

Find the current in amperes if 96 mC of charge pass through a wire in 8.4 s.

olganol [36]

Answer:

Approximately 11.43

Explanation:

Using the formula charge=current×time

then current=charge/time. That then will be C=96/8.4=11.4285714286 so approximately 11.43

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3 years ago

Changing states of matter

guajiro [1.7K]

Answer:

....,..,.....,....................solid liquid gas

5 0

3 years ago

Answer True or Flase1-Electric potential due to a uniform E field doesn’t change with location.2-The equipotential surfaces asso

TEA [102]

Answer:

1. False

2. True

3. True

Explanation:

1- False —> The relation between electric potential and electric field is given such that

$-\int\limits^a_b \vec{E}d\vec{l} = V_{ab}$

Therefore, for a uniform E field, electric potential is linearly proportional to the distance.

2- True —> The electric field lines always cross the equipotential lines perpendicularly.

3- True —> In order to be a potential difference, one source of electric field is enough. The electric potential will decrease radially according to the following formula:

$V = \frac{1}{4\pi\epsilon_0}\frac{q}{r^2}$

There is no test charge in the formula, only the source charge. Even when there is no test charge, the potential difference between points in space can exist.

3 0

3 years ago