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Semenov [28]
3 years ago
13

when you boil water to make pasta hot water from the bottom of the pan carries thermal energy to water molecules at the top the

pan . This is an example of
Physics
1 answer:
FrozenT [24]3 years ago
7 0

Answer:

photosynthesis

Explanation:

not sure heat i think

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A beam of light is traveling through a medium at 200,000 km/s. It enters a different medium and speeds up to almost 250,000 km/s
shtirl [24]

Answer

From the question we can see that the in medium  1 speed of light is 200,000 Km/s where as in Medium 2 speed of light is 250,000 km/s.

We can conclude that medium 1 is denser than Medium 2.

In third medium Light speed halts so, the third medium is opaque.

We can say that

Medium 1 can be either water, glass.

Medium 2 will be gas

Medium 3 will be an opaque material.

6 0
3 years ago
Read 2 more answers
A particle moves along a straight path through a displacement d = 2.5i + cj while a force F = 8.5i + -8.5j acts on it. The displ
Zanzabum

Answer:

Explanation:

Work is defined as the scalar product of force and distance

W=F•d

Given that

F = 8.5i + -8.5j. +×-=-

F=8.5i-8.5j

d = 2.5i + cj

If the work in the practice is zero, then W=0

therefore,

W=F•ds

0=F•ds

0=(8.5i -8.5j)•(2.5i + cj)

Note that

i.i=j.j=k.k=1

i.j=j.i=k.i=i.k=j.k=k.j=0

So applying this

0=(8.5i -8.5j)•(2.5i + cj)

0= (8.5×2.5i.i + 8.5×ci.j -8.5×2.5j.i-8.5×cj.j)

0=21.25-8.5c

Therefore,

8.5c=21.25

c=21.25/8.5

c=2.5

7 0
3 years ago
When do we say a body has goined heat​
svetoff [14.1K]

Answer:

your mom and mark me brainlyist if I was right

3 0
2 years ago
The wavelength of sound wave is 30 m. Frequency is 7 Hz. What is the wave speed
MaRussiya [10]

Answer:23hz

Explanation:

6 0
3 years ago
Scientists and astronomers have found that in galaxies with central black holes, there are also large star formations near those
sweet-ann [11.9K]

Answer:

B

Explanation:

nothing to do with black holes creating star or related

5 0
3 years ago
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