3 years ago

What happens when a chemical change takes place?

2 answers:

5 0

<span>When chemical change takes place, the atoms in the reactants rearrange and bond together differently to form one or more new products with different characteristics. </span>

Natali [406]3 years ago

3 0

Form one or more new products with different characterstics

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20 POINT QUESTION

Valentin [98]

Label A: sublimation
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Suppose we have a space ship orbiting the earth. What must happen in order for the spaceship to leave orbit and fall back toward

sdas [7]

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#2) The spaceship's forward motion must be slowed down so the earth's gravitational pull on it will be stronger than the ship's forward motion.

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Does water expand more as the temperature drops even more below 0 deg? I am worried about the coolant in my rad. as the temp.is

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3 years ago

A gardener pushes a wheelbarrow around the edges of a lawn. When she has finished, she is 5 m from her starting point. She has t

zvonat [6]

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Work done by the gardner is 500 J

Explanation:

As we know that the gardner apply force perpendicular upward by magnitude 300 N and along the floor horizontal force is 100 N

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$F = 100 \hat i + 300 \hat j$

now the displacement of the gardner along the floor is

$d = 5\hat i$

now work done is given as

$W = F. d$

so we have

$W = (100 \hat i + 300 \hat j). (5\hat i)$

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3 years ago

A television of mass 13 kg sits on a shelf. What is the normal force acting on the television?

Mnenie [13.5K]

$13 \times 9.8 = 127.4$
B is the correct answer

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