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marusya05 [52]
3 years ago
13

What can be produced from chemical energy? matter heat sunlight pollution

Physics
2 answers:
poizon [28]3 years ago
5 0

Answer:

Heat

Explanation:

In chemical reactions no matter is created, instead the chemicals react and any new substance formed is made from a rearrangement of the chemicals put into it. E.g. CH4 +2O2 --> CO2 + 2H2O, if you count it the number of atoms of each element doesn't change.

Sunlight. Chemical reactions can release energy in the form of light but sunlight is light from the sun

Pollution: This isn't a main concern in chemical reactions, however unneeded waste can be disposed of.

This leaves heat. An exothermic reaction is one that releases heat. An example is yeast and peroxide

pochemuha3 years ago
4 0

Answer:

heat

Explanation:

sup

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5 0
3 years ago
An 8 kg mass moving at 8 m/s collides with a 6 kg mass
steposvetlana [31]

Answer:

10 m/s

Explanation:

Momentum before collision = momentum after collision

m₁u₁ + m₂u₂ = m₁v₁ + m₂v₂

(8 kg)(8 m/s) + (6 kg)(6 m/s) = (8 kg)(5 m/s) + (6 kg) v

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3 0
4 years ago
N in-ground swimming pool has the dimensions shown in the drawing. It is filled with water to a uniform depth of 3.00 m. The den
Doss [256]

Answer:

The pressure is  P = 1.31*10^{5} \ Pa

Explanation:

From the question we are told that

    The depth of the swimming pool is  d =  3.00 \  m

     The density of water is  \rho = 1.00*10^{3} \  kg /m^3

Generally the  total pressure exerted on the bottom of the swimming pool is mathematically represented as

          P = P_o + \rho * g * h

Here P_o is the atmospheric pressure with value

        P_o  =  101325 \  Pa

So

        P = 101325 + [1000 * 9.8 * 3]

=>     P = 130725 \ Pa

=>    P = 1.31*10^{5} \ Pa

     

7 0
3 years ago
A car traveling at 45 miles per hour is brought to a stop, at constant deceleration, 132 feet from where the brakes are applied.
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Answer:

c

Explanation:

4 0
3 years ago
A 1250 kg Nascar is at the starting line. The race starts and the car reaches a speed of 30
lana66690 [7]

Answer:

force=1250kg * 30m/s+10

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