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Yuliya22 [10]
3 years ago
8

Which is an example of potential energy? a swimmer kicking their legs a car driving on the road an arrow flying at a target a yo

-yo in someone’s hand
Physics
1 answer:
kirza4 [7]3 years ago
7 0
A yo yo in someone’s hand. All of the other options are kinetic energy. Remember, potential energy is when things are at a stop. Kinetic energy is when things are moving.
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In designing a backyard water fountain, a gardener wants to stream of water to exit from the bottom of one tub and land in a sec
mote1985 [20]

To solve this problem it is necessary to apply the concepts related to the kinematic equations of movement description.

From the definition we know that the speed of a body can be described as a function of gravity and height

V = \sqrt{2gh}

V = \sqrt{2*9.8*0.15}

V = 1.714m/s

Then applying the kinematic equation of displacement, the height can be written as

H = \frac{1}{2}gt^2

Re-arrange to find t,

t = \sqrt{2\frac{h}{g}}

t = \sqrt{2\frac{0.5}{9.8}}

t = 0.3194s

Thus the calculation of the displacement would be subject to

x = vt

x =1.714*0.3194

x = 0.547m

Therefore the required distance must be 0.547m

4 0
3 years ago
element x has five valence neutrons, element y has one valence electron and element z has one valence electron. which two of the
nikitadnepr [17]
I assume the element has 5 valence electrons (not neutrons).  The similar properties are shared between y and z  since they have the same number of valence electrons.  This is what is primarily responsible for chemical behavior. 
7 0
3 years ago
______ is a chemical reaction between an acid and a base that forms a salt and water. Group of answer choices Neutralization Dis
viva [34]

Answer:

neutralization

Explanation:

this is because

acid + base ---> salt + water

7 0
2 years ago
What’s the role of ficus tree in weathering???????HURRY
erica [24]

Answer:

Ficus trees are warm-weather, tropical trees. Varieties include the fruit-producing fig, the houseplant Ficus benjamina, and the rubber plant. Whether you grow ficus trees in the landscape or in the home, providing the right temperature is vital to prevent damage and ensure good, healthy growth on the tree.

Explanation:

7 0
3 years ago
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IgorLugansk [536]

Answer:

b

Explanation:

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8 0
3 years ago
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