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Andru [333]
3 years ago
8

Conrad is studying for class. To remember the term _____, he uses the analogy of a thermostat in a house. For instance, when the

temperature falls below the set point, the heat will turn on to correct the temperature.
Physics
1 answer:
Sergio [31]3 years ago
6 0
I believe it is the word is equilibrium because your body must kick on other systems if one is falling behind. Ex. You are cold so you shiver to keep warm.
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A large storage tank, open to the atmosphere at the top and filled with water, develops a small hole in its side at a point 15.6
VladimirAG [237]

To solve this problem it is necessary to take into account the kinematic equations of motion and the change that exists in the volume flow.

By definition the change in speed is given by

v_f^2-v_i^2 = 2ax

Where,

x= distance

v_f =final velocity

v_i =initial velocity

a = acceleration

On the other hand we know that the flow of a fluid is given by

\dot{V} = Av

Where,

A = Area

v = Velocity

PART A )

Applying this equation to the previously given values we have to

v_f^2-v_i^2 = 2ax

v_f^2-0 = 2*(9.8)(15.6)

v_f^2=305.76

v_f = 17.48

Therefore the velocity of the water leaving the hole is 17.48m/s

PART B )

In the case of the hole we take the area of a circle, therefore replacing in the flow equation we have to,

\dot{V} = \pi r^2 v

r = \sqrt{\frac{\dot{V}}{\pi v}}

r = \sqrt{\frac{3*10^{-3}*\frac{1}{60}}{\pi (17.48)}

r = \sqrt{9.10*10^{-7}}

r = 0.54*10^{-4}

The diameter is 2 times the radius, then is 1.91*10^{-3}m or 1.91mm

<em>Note: The rate flow was converted from minutes to seconds.</em>

8 0
3 years ago
When light shines through atomic hydrogen gas, it is seen that the gas absorbs light readily at a wavelength of 91.63 nm. What i
Artist 52 [7]

Answer:

D) 21

Explanation:

When gas absorbs light , electron at lower level jumps to higher level .

and the difference of energy of orbital is equal to energy of radiation absorbed.

Here energy absorbed is equivalent to wavelength of 91.63 nm

In terms of its energy in eV , its energy content is eual to

1243.5 / 91.63 = 13.57 eV. This represents the difference the energy of orbit .

Electron is lying in lowest or first level ie n = 1.

Energy of first level

= - 13.6 / 1² = - 13.6 eV.

Energy of n th level = - 13.6 / n². Let in this level electron has been excited

Difference of energy

= 13.6 - 13.6 / n² = 13.57 ( energy of absorbed radiation)

13.6 / n² = 13.6 - 13.57 = .03

n² = 13.6 / .03 = 453

n = 21 ( approx )

4 0
3 years ago
HELP?!
svetoff [14.1K]

Answer is the highest temperature, so D

Higher temperatures allow for sound to move faster, since the molecules vibrate faster, sound waves can travel more quickly. The speed of sound in room temperature air is 346 meters per second. This is faster than 331 meters per second, which is the speed of sound in air at freezing temperatures.

Neat little fact: This is also why in the winter when there is snow on the ground, it seems more peaceful and quite. The snow absorbs the sound waves and the temperature makes them not travel as fast, getting more quite as they go.

6 0
4 years ago
Read 2 more answers
Personality appears to _________ as individuals age. gradually change quickly change quickly stabilize gradually stabilize
anzhelika [568]

Answer:

Gradually Change

Explanation:

5 0
3 years ago
Read 2 more answers
What do you think causes the rising and sinking of molten rock in the mantle?
Svet_ta [14]

Answer:

Heyyy hope this helps

Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat.

3 0
3 years ago
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