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3 years ago

What does the big bang theory suggest

Physics

1 answer:

Alika [10]3 years ago

7 0

Answer:

The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today.

Explanation: Hope this help! :)

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Coders play an important role in

Burka [1]

Answer:

it is a.health record documentation

Explanation:hope this helps

3 0

3 years ago

Suppose that an electron and a positron collide head-on. Both have kinetic energy of 1.20 MeV and rest energy of 0.511 MeV. They

AnnZ [28]

Answer:

E = 1.711 MeV

Explanation:

From the law of the conservation of energy:

$K.E_{e}+K.E_p + E_{e}+E_{p} = 2 E$

where,

$K.E_e=K.Ep=$ the kinetic energy of positron and electron = 1.2 MeV

$E_e=E_p =$ Rest energy of the electron and the positron = 0.511 MeV

E = Energy of Photon = ?

Therefore,

$1.2\ MeV + 1.2\ MeV + 0.511\ MeV + 0.511\ MeV = 2E\\\\E = \frac{3.422\ MeV}{2}\\\\$

3 0

3 years ago

A stone is thrown vertically upward with an initial velocity of 25m/s , calculate time taken to return to the thrower

Nonamiya [84]

Answer:

can you give me abrainlest??

5 0

3 years ago

A mass is oscillating horizontally on a spring. At the locations A, B, C, D, and E, photogates are used to measure the speed of

svetoff [14.1K]

Complete Question

The complete question is is shown on the first uploaded

Answer:

The elastic potential energy at point B is $PE_{elastic} = 50J$

The kinetic energy at point D is $KE = 75J$

Explanation:

Looking at the given point we can observe that mechanically energy(i.e potential and kinetic energy ) is conserved and it value is $E_ {m} = 100J$

So at point B

$E_{m} = PE_{elastic} +KE$

$100 = PE_{elastic} + KE$

KE at point B is 50J

So $PE_{elastic} = 100 - 50 = 50J$

Now at point D

$E_{m} = PE_{elastic} +KE$

$PE_{elastic}$ at point D is 25J

So $KE = 100 - 25 = 75J$

4 0

3 years ago

You drop a rock off the top of a building. It takes 3.4 s to hit the ground. What is the velocity at impact (final velocity)? I

SCORPION-xisa [38]

-- The acceleration of gravity (on Earth) is 9.8 m/s².

-- That means that during every second an object falls,
it adds 9.8 m/s of speed.

Now ! If it adds 9.8 m/s of speed every second, then
how fast is it falling at the end of 3.4 seconds ?

This is as close as I can bring you to the answer
without dropping it at your feet, or handing it to you
on a golden tray.

3 0

3 years ago