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ehidna [41]
3 years ago
5

Henry is in the community investigating sources of chemical energy for his science experiment. Select the best examples of chemi

cal energy Henry can use.
A gas station and people playing hopscotch
A squirrel eating acorns and a fire burning
Someone reading a book and eating a sandwich
Someone sliding down the slide and someone drinking water
Chemistry
2 answers:
djverab [1.8K]3 years ago
8 0
B it seems as a fire is better then the rest
Julli [10]3 years ago
6 0

Explanation:

Determine whether the following symbols are universal or contextual. In "The Nightingale and the Rose,"

Oscar Wilde uses a red rose as a symbol for love. In To Kill a Mockingbird, Harper Lee uses a mockingbird as a symbol for innocence.

In A Little Princess, Frances Hodgson Burnett uses hot buns as a symbol for the connection between the main character and a poor street child.

In "The Water of Life," the Brothers Grimm use water as a symbol for life.

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Give three examples, from the lab, where potential energy was converted to kinetic energy.
GREYUIT [131]

Give 3 Examples of where potential energy was converted to knlinetic energy:

Curtain

A ball before moving

An apple from the tree then falling down

When the Curtains are still, we call the that potential energy. If you move the curtains around, that is kinetic energy

The ball is still, that is potential energy. Then the ball is moving, the is kinetic energy

There is a apple ganging from a tree, that is potential energy. That apple is fall, this is kinetic energy

Hope this helps

Don't type or write in the answer, I'm not sure what from the lab means. These are a few potential into kinetic energy I could have think of!

4 0
3 years ago
Is weathering a physical or chemical change, and why?
kumpel [21]
Weathering would be chemical because it's more natural than physical
7 0
3 years ago
replacing standard incandescent lightbulbs with energy-efficient compact fluorescent lightbulbs can save a lot of energy. Calcul
Fantom [35]
The difference between the wattage is 60-18=42W. The saving in energy over 10 hrs is 10×42=420 watt-hours=0.42kWh
8 0
3 years ago
6. An alloy of iron contains 75.0% iron and 25.0% other elements. How many grams of iron are present in 150. g of the alloy?
Hoochie [10]

Answer:

108.5

Explanation:

half of 150 is 75 and half of that is 32.5. Add that to 75 and you'll get your answer

3 0
3 years ago
If a quadrilateral has three angels measuring 60, 45 and 100 find the measure of the fourth angel
Nina [5.8K]
The sum of angels of a quadrilateral is equal to 360°.

∠A = 360 - (60 + 45 + 100) = 155
7 0
3 years ago
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