3 years ago

In chemical reactions, energy is absorbed or released in the form of:

1 answer:

dsp733 years ago

6 0

Answer:

all chemical reaction involved in early enough energy used to break bonds in reactants and energy released when you want from product

Edith a remake reaction absorb energy and epidemic reaction release energy flow of conversion of energy states that matter cannot be created or destroyed .

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Multiple-Concept Example 9 reviews the concepts that are important in this problem. A drag racer, starting from rest, speeds up

Mademuasel [1]

Answer:

V = 90.51 m/s

Explanation:

From the given information:

Initial speed (u) = 0

Distance (S) = 391 m

Acceleration (a) = 18.9 m/s²

Using the relation for the equation of motion:

v² - u² = 2as

v² - 0² = 2as

v² = 2as

$v = \sqrt{2as}$

$v = \sqrt{2*18.9*391}$

v = 121.57 m/s

After the parachute opens:

The initial velocity = 121.57 m/ss

Distance S' = 332 m

Acceleration = -9.92 m/s²

How fast is the racer can be determined by using the relation:

$V= \sqrt{v^2 + 2aS'}$

$V = \sqrt{121.57^2+ 2 (-9.92)(332)}$

V = 90.51 m/s

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When flying in an airplane, you are most likely in which layer of the atmosphere? mesosphere thermosphere stratosphere trosphere

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Lower stratosphere, this is to avoid turbulence

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If a pebble is being transported in a stream by rolling, how does the velocity of it compare to the velocity of the stream?

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Streams carry sediment, like pebbles, in their flows. The pebbles can be in a variety of locations in the flow, depending on it's size, the balance between the upwards velocity on the pebble (drag and lift forces), and it's settling velocity.

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A ball is dropped from rest out of a high window in a tall building for 5 seconds. Assuming we ignore air resistance and assume

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what is the upwards force?

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During a test, a solution placed on a sheet

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B. Acidic

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Neutral an Basic solutions wouldn't create any reaction

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