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3 years ago

What new scientific tool is very useful to observe changes in Landforms?

2 answers:

Ivan3 years ago

8 0

Most likely a satellite because the rest is not made for looking for changes in landforms like the telescope is for stars, earthquake detector is for detecting earthquakes, and a camera is for taking pictures of things

evablogger [386]3 years ago

3 0

I’m not sure but I think it’s Earthquake Detector

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A gas occupies 49 liters at a pressure of 367 mm Hg. What is the volume when the pressure is increased to 784 mm Hg?

vodka [1.7K]

Answer:

22.94 L.

Explanation:

We can use the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

If n and T are constant, and have two different values of V and P:

P₁V₁ = P₂V₂

P₁ = 367.0 mm Hg, V₁ = 49.0 L.

P₂ = 784.0 mm Hg, V₂ = ??? L.

∴ V₂ = P₁V₁/P₂ = (367.0 mm Hg)(49.0 L)/(784.0 mm Hg) = 22.94 L.

7 0

3 years ago

You develop and visualize a silica gel TLC plate and are not satisfied with the results. Which of the following experimental par

borishaifa [10]

Answer:

Explanation:

Toe change the retention factor of a TLC analysis, you can change your solvent for a more or less polar one, depending on your analyte. You can use a mix of solvents too.

You can also change the your method to visualize the spots, you can use fluorescent compounds that can only be seen in black light, you can use Iodine, Bromine and so on.

7 0

4 years ago

How many protons, electrons, and neutrons does the following isotope contain 13C

Sophie [7]

6 protons, 7 neutrons, and if it has no charge then it has 6 electrons

6 0

4 years ago

Read 2 more answers

Aluminum has a specific heat of 897 j/kg c. methanol has a specific heat of 2450 j/kg c.

Vikki [24]

Answer:

$\sf \: correct \: answer \: would \: be \: methanol!$

Explanation:

Specific Heat: The specific Heat of any material is the heat absorbed or evolved by the material to raise or fall it's temperature by 1°C per unit mass of the material.

The heat absorbed or evolved (Q) is directly proportional to the mass of substance(m) and rise or fall of temp(∆T)

The general formula for specific heat is,

$\sf \: \: \: \: \: s = \frac{Q}{m\Delta T}$

Where

s is specific heat,
Q is the Heat absorbed or evolved
m is mass of substance
& ∆T is change is temperature

Now coming to your question,

The specific heat of Aluminium is 897 J/kg °C

The specific heat of Aluminium is 897 J/kg °C& specific heat of methanol is 2450 J/kg ° C

The definition states that, if the specific heat would be more, more amount of heat will be required for per unit change in temperature.

The specific heat of Aluminium is 897 J/kg °C which means for one kilogram aluminium, 897 Joule energy is required to change it's temperature by 1°C & Similarly for one kilogram methanol 2450 joule energy is required.

Hence, the correct answer would be methanol!

learn more about specific heat here,

brainly.com/question/27365354

brainly.com/question/27598037

$\small \sf \: Thanks \: for \: joining \: brainly \: community!$

7 0

2 years ago

Which is NOT a shape of epithelial cells?

spayn [35]

B.should be *columnar, but C.Circular is the answer

4 0

3 years ago