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IRINA_888 [86]
2 years ago
7

What causes a substance to change states of matter?

Physics
1 answer:
Tatiana [17]2 years ago
3 0

temperature is the answer

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The orbit of a certain a satellite has a semimajor axis of 4.0 x 107 m and an eccentricity of 0.15. Its perigee (minimum distanc
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100KM and 1kkm

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An animal cell placed in pure distilled 100% will
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in a hypotonic solution like distilled water, a red blood cell would burst, because inside the cell has a higher solute concentration than outside.

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i hope this helps

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Describe in brief the importance of measurement in our daily life?<br>​
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Measurement tools make our lives safer and better? And they increase the quality and quantity of life. Arguably, the ability to measure calculating

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3 years ago
A wave on the ocean surface with wavelength 44 m travels east at a speed of 18 m/s relative to the ocean floor. If, on this stre
inessss [21]

Answer:

A)t=<u>1.375s</u>

B)t=11s

Explanation:

for this problem we will assume that the east is positive while the west is negative, what we must do is find the relative speed between the wave and the powerboat, and then with the distance find the time for each case

ecuations

V=Vw-Vp  (1)

V= relative speed

Vw= speed of wave

Vp=Speesd

t=X/V(2)

t=time

x=distance=44m

A) the powerboat moves to west

V=18-(-14)=32m/s

t=44/32=<u>1.375s</u>

B)the powerboat moves to east

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3 0
3 years ago
Water flows on the inside of a steel pipe with an ID of 2.5 cm. The wall thickness is 2 mm, and the convection coefficient on th
Hatshy [7]

Answer:

U = 11.67 W/m² °C

Explanation:

Inner diameter, d = 2.5 cm = 0.025 m

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we have

\frac{1}{UA_o}=\frac{1}{h_iA_i}+\frac{1}{h_oA_o}

on rearranging, we get

\frac{1}{U}=\frac{1}{h_i}\frac{A_o}{A_i}+\frac{1}{h_o}

where, A_i\ \textup{and}\ A_o are the perimeter respective to inner and and outer diameter

on substituting the values, we get

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6 0
3 years ago
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