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MatroZZZ [7]
3 years ago
9

If two or more elements are involved in a chemical reaction they will most likely form a?

Physics
2 answers:
Vitek1552 [10]3 years ago
5 0
I know either mixture or compound

seraphim [82]3 years ago
4 0

Answer:

The answer is compound

Explanation:

You might be interested in
Would the headlights of a car produce a two source interference pattern? If so how will it be observed?
astra-53 [7]

<h2>Answer:</h2>

No, interference patterns will not be observed as the two sources of light are neither monochromatic neither coherent and therefore interference of light will not form total reinforcement or total cancellation at any point

6 0
3 years ago
At an age of 380,000 years, the temperature of the universe had fallen to 3000 K, and electrons could then combine with protons
defon

Answer:

The major transition occurred as a consequence of this change in the universe at this time is that  <em>b)The universe became transparent to light for the first time.</em>

Explanation:

For the first 380,000 years or so, the universe was essentially too hot for light to shine. The heat of creation smashed atoms together with enough force to break them up into a dense plasma, an opaque soup of protons, neutrons and electrons that scattered light like fog. Then 380,000 years after the Big Bang, matter cooled enough for atoms to form during the era of recombination, resulting in a transparent, electrically neutral gas.

This set loose the initial flash of light created during the Big Bang, which is detectable today as cosmic microwave background radiation. However, after this point, the universe was plunged into darkness, since no stars or any other bright objects had formed yet.

7 0
3 years ago
A 0.650 kg block is attached to a spring with spring constant 18.0 N/m . While the block is sitting at rest, a student hits it w
garik1379 [7]

Answer:

amplitude is 8.92 cm

speed of block is 44.11 cm/s

Explanation:

given data

mass = 0.650 kg

spring constant = 18 N/m

speed = 47 cm/s = 0.44 m/s

speed at x point = 0.350 A

to find out

amplitude of subsequent oscillation

solution

we know here conservation of energy

maximum kinetic energy = maximum potential energy

\frac{1}{2} m v^{2} = \frac{1}{2} k A^{2}

here we know k is spring constant and m is mass and A is amplitude and v is velocity

so solve it we get

A = \sqrt{\frac{mv^{2} }{k} }

put here all these value

A =  \sqrt{\frac{0.650(0.47)^{2} }{18} }

A = 0.08931 m

so amplitude is 8.92 cm

and

by conservation of energy

initial energy = final energy

\frac{1}{2} m V^{2} + \frac{1}{2} k x^{2} = \frac{1}{2} m Vm^{2} + 0

solve we gey V

V = \sqrt{Vm^{2} - \frac{k }{m} x^{2} }    

put here value Vm = 0.47 , and x = 0.350

V = \sqrt{0.47^{2} - \frac{18 }{0.650} (0.350*0.088 m)^{2} }

V = 0.4411 m/s

so speed of block is 44.11 cm/s

3 0
3 years ago
The horizontal component of the force acting on the crate is
Aleksandr [31]

Answer: 19 n

Explanation:

6 0
3 years ago
PLEASE I NEED HELP
777dan777 [17]

Answer:

K= 95.4 J

Explanation:

For this exercise we must use the conservation of mechanical energy.

We set a reference system on the floor.

Starting point. Higher

          Em₀ = U = m g h

Final point. Just before taking the floor

           Em_f = K = ½ m v²

energy is conserved because there is no friction

         Em₀ = Em_f

         mg h = K

         

The height is

  1.         h = y -y₀

                 h = 0- y₀

let's calculate

       K =  3.23 (-9.81)  (-3.01)          

       K= 95.4 J

5 0
3 years ago
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