3 years ago

How does chemical energy hold molecules together?

2 answers:

7 0

So, bonds are what basically hold atoms together. For example : in a solid, the bonds smash the atoms together VERY tightly, which is mainly why a solid is a solid.

kvasek [131]3 years ago

3 0

Chemical energy holds molecules together by forming the bonds between atoms. the form of electric bonds.

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Which of the following shows kinetic energy being converted into potential energy?

Komok [63]

B) a rock being tossed high into the air

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An X-Ray machine delivers a radiation dose of 5mRem/hr. at 3ft from the machine. How far will the X-Ray technician have to move

kupik [55]

Answer:

4.7ft

Explanation:

Pls see attached file

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3 years ago

Harry and ron set up this experiment with a glider, whose mass they have measured to be 565 g, and seven washers hanging from th

svetlana [45]

Let's call $m=565~g=0.565~kg$ the mass of the glider and $m_w=7\cdot12~g =84~g=0.084~kg$ the total mass of the seven washers hanging from the string.
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$F_{net} = m_w g$
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$F_{net}=(m+m_w)a$
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$m_w g = (m+m_w)a$
and from this we can find the acceleration:
$a= \frac{m_w g}{(m+m_w)} = \frac{0.084~kg \cdot 9.81~m/s^2}{(0.565~kg+0.084~kg)}=1.27~m/s^2$

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3 years ago

How does the suns energy contribute to the carbon cycle

netineya [11]

Answer:

Plants are a good starting point when looking at the carbon cycle on Earth. Plants have a process called photosynthesis that enables them to take carbon dioxide out of the atmosphere and combine it with water. Using the energy of the Sun, plants make sugars and oxygen molecules.

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3 years ago

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If you traveled 90 km in 0.50 hours, what <br><br> was your average speed

Alinara [238K]

Average speed = distance / time

Average speed = 90 km / 0.5 hrs

Average speed = 180 km per hour

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3 years ago