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4 years ago

Which of the following questions best highlights a shortcoming of the big bang theory?

Physics

2 answers:

Trava [24]4 years ago

5 0

Answer: B. Why are stars clustered together and not spread uniformly throughout the universe?

The big bang theory claims that the universe we observe is created out of single point or singularity which exploded or there was a big bang which led to formation of universe. The universe is expanding since then and will end in coldness one day. Then why the stars get cluttered and not spread out uniformly after the explosion. This remains unexplained in the Big bang theory.

Elena-2011 [213]4 years ago

3 0

The correct answer for Apex is.. What was present before the beginning of our universe?

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Can anybody please help? 15 points pls

Mariana [72]

Acceleration= v/ r
So you have to divide 700 by 0.800 which is equal to 875 m/s 2

5 0

3 years ago

3 A jet plane accelerated along a straight runway from rest to a

aleksklad [387]

Explanation:

v=140 m/s

t=50s

u=0

change of velocity = v-u

140-0=140 m/s

for acceleration:

from Newton's first law of motion:

v=u+at

140=0+a50

50a=140

a=140/50

a=2.8 m/s²

8 0

3 years ago

A ball is thrown horizontally from the top of a building 54 m high. The ball strikes the ground at a point 35 m horizontally awa

Ivanshal [37]

Answer:

V=34.2 m/s

Explanation:

Given that

Height , h= 54 m

Horizontal distance , x = 35 m

Given that , the ball is thrown horizontally , therefore the initial vertical velocity will be zero.

In vertical direction :

We know that

$V^2_y=U^2_y+2 g h$

Now by putting the values in the above equation we got

$V^2_y=U^2_y+2 g h$

$V^2_y=0^2+2\times 9.81 \times 54$

Assume $g= 9.81 m/s^2$

Thus

$V^2_y=1059.48$

$V_y=\sqrt{1059.48}\ m/s$

$V_y=32.54 m/s$

We also know that

$V_y=U_y+ g\times t$

$32.54=9.81\times t$

$t=\dfrac{32.54}{9.81}=3.31\ s$

In horizontal direction :

$x=U_x\times t$

$U_x=\dfrac{35}{3.31}=10.54\ m/s$

Thus the resultant velocity

$V=\sqrt{V^2_y+U^2_x}$

$V=\sqrt{32.54^2+10.54^2}=34.2\ m/s$

V=34.2 m/s

Therefore the velocity will be 34.2 m/s.

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4 years ago

Please help me I need this for a test

Marysya12 [62]

Answer:

Explanation:

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8 0

3 years ago

Which two states border Washington, DC? Maryland, West Virginia Delaware, Virginia Delaware, West Virginia Maryland, Virginia

fredd [130]

Answer:

I believe it would be Pennsylvania and New Jersey they both border Maryland. Didn't see any other states that border Maryland with West Virginia and Virginia being exempt from the question.

Explanation:

5 0

3 years ago

Read 2 more answers