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Maru [420]
3 years ago
5

HELP HELP HELP ME PLSSSSS 50 POINTS

Chemistry
2 answers:
Ostrovityanka [42]3 years ago
7 0

Answer:

Mapping the ocean floor is made these days due to efforts of professionals and the researchers of the aquatic biosphere. As, they have revealed the mysteries that were not discussed before. So, analyzing the ocean floor and making it more easy for us to know the diversity found on the ocean floor.

  1. While, the diversity on the ocean floor is inhabited by millions of species and these species in a more larger space then we expect as the different organisms covers miles of space inside the ocean and for that reason we have to analyze each species habitat by using a much wider form of scale.Collecting Data at 10 cm intervals. Distance from Shore (in cm) Depth ,

10

20

30

40

50

60

70

80

90

100.

    <u>  2. Sonar: </u>

Sonar is based upon using the ultrasonic form of waves, as they are generated by a source of U.V rays in a specific direction to analyze any given area or subject target by the professionals. The ultra sonic waves are considered much penetrable, having the capacity to be more secure and having less number of losses in them. Which makes the sonar more accurate then any other source of waves to analyze a given space.

  • <u>Note:</u>

"Most of the aquatic and other animals uses the sonar procedure to locate there prey and other targets etc."

Anastaziya [24]3 years ago
5 0

Answer:

1) They are the same line so they match equally bc they are measuring the same thing just one is more specific than the other

2) Sonar measures all depths at every possible point and maps it including all the gaps in between the 5cm apart the ocean floor is. The difference between the points could be a cliff or a smooth decline.

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What is the wavelength of a photon that will be emitted when an electron in the hydrogen atom moves from n
tigry1 [53]

Answer:

Use the Rydberg Equation 1/λ = R(1/n²(final) - 1/n²(initial) where R = 109,678 cm⁻¹. Substitute initial orbital number and final orbital number and solve for wavelength (λ).

Explanation:

Example:

Assume an electron transition from n = 5 to n = 2.

1/λ = 109,678cm⁻¹(1/2² - 1/5²) = 109,678(0.25 - 0.04)cm⁻¹ = 23,032cm⁻¹

λ = 1/23,032cm⁻¹ = 4.34 x 10⁻⁵cm x 10⁻²m/cm x 10⁹nm/m = 434nm

5 0
3 years ago
The water bottle contains 575 grams of water at 80°C. The water eventually cools to
Jet001 [13]

Answer:

–23000 Calories.

NOTE : The negative sign indicates that heat has been loss to the student back.

Explanation:

The following data were obtained from the question:

Mass (M) of water = 575 g

Initial temperature (T1) = 80 °C

Final temperature (T2) = 40 °C

Heat (Q) transferred =.?

Next, we shall determine the change in temperature (ΔT).

This is illustrated below:

Initial temperature (T1) = 80 °C

Final temperature (T2) = 40 °C

Change in temperature (ΔT) =?

Change in temperature (ΔT) = T2 – T1

Change in temperature (ΔT) = 40 – 80

Change in temperature (ΔT) = –40°C

Finally, we shall determine the heat transferred. This can be obtained as follow:

Mass (M) of water = 575 g

Change in temperature (ΔT) = –40°C

Specific heat capacity (C) of water = 1 Cal/g°C

Heat (Q) transferred =.?

Q = MCΔT

Q = 575 × 1 × –40

Q = –23000 Calories

NOTE : The negative sign indicates that heat has been loss to the student back.

8 0
3 years ago
Which formulas represent two polar molecules?
Tresset [83]
The correct answer is shown in option 3. Water and hydrochloric acid are polar molecules. These molecules are polar because of the presence of bonds that are partially ionic or polar covalent bonds. Other examples are hydrogen fluoride and ammonia. 
7 0
4 years ago
What does “unsaturated” refer to when talking about solutions
vovangra [49]

Answer:

Not saturated

Explanation:

not saturated; having the power to dissolve still more of a substance. Chemistry. (of an organic compound) having a double or triple bond and capable of taking on elements or groups by direct chemical combination without the liberation of other elements or compounds, as ethylene, CH2 = CH2; undersaturated.

6 0
3 years ago
If gas is initially at 350L and 500k then changes to 295K what is the new volume
Dimas [21]
<h2>Hello!</h2>

The answer is:

The new volume is equal to 206.5 L.

<h2>Why?</h2>

To solve this problem, we need to assume that the pressure is constant, and use the Charle's Law equation, so, solving we have:

\frac{V_1}{T_1}=\frac{V_2}{T_2}

We are given:

V_1=350L\\T_1=500K\\T_2=295K

Then, using the Charle's Law equation, we have:

\frac{350L}{500K}=\frac{V_2}{295K}

\frac{350L}{500K}=\frac{V_2}{295K}\\\\V_2=\frac{350L}{500K}*295K=206.5L

Hence, we have that the new volume is equal to 206.5 L.

Have a nice day!

5 0
3 years ago
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