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3 years ago

In looking for other planets that might have life, astronomers focus especially on finding planets that _____.

Physics

2 answers:

IRINA_888 [86]3 years ago

7 0

The answer is C, they have liquid water

n200080 [17]3 years ago

4 0

Answer: have liquid water

Explanation:

Liquid water and atmosphere are important for life to exist on a planet. Life can exist in the form of unicellular. It must not be multi-cellular organisms like animals. A cell is majorly composed of water. Thus, liquid water is very essential for life to exist. All the life processes require liquid water. Thus, astronomers focus especially on finding planets that have liquid water.

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Which of the following statements describes an interaction between the atmosphere and biosphere?

Schach [20]

Answer:

well 1. its not 100 points it is 5 points.....and 2.the answer is D. I did the same test and it was D.

Explanation:

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4 0

3 years ago

Important minerals such as copper are found in what?

adoni [48]

It can be found in granitic and basaltic rock.

3 0

4 years ago

A capacitor is being charged from a battery and through a resistor of 10 kΩ. It is observed that the voltage on the capacitor ri

swat32

Answer:

$C = 2.48 \times 10^{-4} Farad$

Explanation:

As per the equation of voltage on capacitor we know that

$V = V_{max}(1 - e^{-\frac{t}{\tau}})$

now we know that voltage reached to its 80% of maximum value in 4 second time

so we will have

$0.80 V_{max} = V_{max}(1 - e^{-\frac{4}{\tau}})$

$0.20 = e^{-\frac{4}{\tau}}$

$-\frac{4}{\tau} = ln(0.20)$

$-\frac{4}{\tau} = -1.61$

$\tau = 2.48$

as we know that

$\tau = RC$

$(10 k ohm)(C) = 2.48$

$C = 2.48 \times 10^{-4} Farad$

4 0

3 years ago

Pease circle the statements incompatible with the Kelvin-Planck Statement. (A) No heat engine can have a thermal efficiency of 1

Marina86 [1]

Answer:

(C) The impossibility of having a 100% efficient heat engine is always due to friction or other dissipative effects such as the system is perfectly designed or the material needed for the system design is not available.

Explanation:

The above option was never stated in the law

8 0

3 years ago

Plz answer this...its urgent!!<br>its about gravitation..only 3 questions

iren2701 [21]

Answer: For #1, 7.3 m/s2.

Explanation: See this wikipedia screenshot for explanation, it's complicated.

8 0

3 years ago