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2 years ago

7

Which of the following is not part of costa rica’s geography?

2 answers:

Romashka-Z-Leto [24]2 years ago

7 0

costa rica does not have deserts hoped this helped and have a great day:)

mrs_skeptik [129]2 years ago

4 0

Costa Rica doesn't have deserts. It may be hot but its more of a tropical place. Costa Ricca DOES have volcanoes, beaches, and mountains.

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Need help! What is true about the relationship among wavelength, frequency, and energy in electromagnetic radiation?

lesantik [10]

I believe the answer is D

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3 years ago

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Density is a physical property that relates the mass of a substance to its volume. A. Calculate the density, in g/mL , of a liqu

Angelina_Jolie [31]

Answer:

A) 0.660 g/ml

B) 1.297 ml

C) 0.272 g

Explanation:

Every substance, body or material has mass and volume, however the mass of different substances occupy different volumes. This is where density $D$ appears as a physical characteristic property of matter that establishes a relationship between the mass $m$ of a body or substance and the volume $V$ it occupies:

$D=\frac{m}{V}$ (1)

Knowing this, let's begin with the answers:

<h2 /><h2>Answer A:</h2>

Here the mass is $m=0.155g$ and th volume $V=0.000235L=0.235mL$

Solving (1) with these values:

$D=\frac{0.155g}{0.235mL}$ (2)

$D=0.660g/mL$ (3)

<h2>Answer B:</h2>

In this case the mass of a sample is $m=4.71g$ and its density is $D=3.63g/mL$ .

Isolating $V$ from (1):

$V=\frac{m}{D}$ (4)

$V=\frac{4.71g}{3.63g/mL}$ (5)

$V=1.297mL$ (5)

<h2>Answer C:</h2>

In this case the volume of a sample is $V=0.293mL$ and its density is $D=0.930g/mL$ .

Isolating $m$ from (1):

$m=D.V$ (6)

$m=(0.930g/mL)(0.293mL)$ (7)

$m=0.272g$ (8)

4 0

3 years ago

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Explanation:

Ed2020

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3 years ago

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Moving a unit "positive" test charge from A to B will result in a reduction in potential

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V2 - V1 = -4.17 * 562.5 J/C

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2 years ago

Determine the magnitude and direction of the force on a 200 m power line carrying a current of 5.0-A due west in a magnetic fiel

bogdanovich [222]

Answer:

Explanation:

l = 200 m

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Thus, the magnitude of force is 3 x 10^-3 newton and it is directed towards negative z axis direction.

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3 years ago