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Bingel [31]
3 years ago
9

1. A kangaroo hops 84 m to the east in 7 seconds.

Physics
1 answer:
DENIUS [597]3 years ago
3 0

Explanation:

Given parameters:

Distance hopped  = 84m

Displacement  = 84m due east

Time  = 7s

Unknown:

Speed of kangaroo  = ?

Velocity of kangaroo  = ?

Solution:

To solve this problem,

    Speed  = \frac{distance}{time }   = \frac{84}{7}  = 12m/s

  Velocity  = \frac{displacement}{time}   = \frac{84}{7}   = 12m/s due east

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The atoms ,molecules,or compound present at the start of a chemical reaction that parcitipate in the reaction . which part of a
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Answer:

The atoms ,molecules, or compound present at the start of a chemical reaction that parcitipate in the reaction are <u><em>the reactants.</em></u>

Explanation:

The chemical reaction is the way in which one substance reacts against another. So, a chemical reaction consists of the transformation of some substances into others, that is, the process of arranging atoms and bonds when chemical substances come into contact.

In a chemical reaction, the initial substances are called reactants, while the new substances obtained are called products.

So, <u><em>the atoms ,molecules, or compound present at the start of a chemical reaction that parcitipate in the reaction are the reactants.</em></u>

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A mother and father have two daughters. The daughters have some similar and some different physical features. Which statement be
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a crane does 9,500 J of work to lift a crate straight up using a force of 125 N. how high does the crane lift the crate?
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Answer:

<em>The crane lifts the crate up to 76 m high</em>

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7 0
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