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Stels [109]
2 years ago
7

According to the Big Bang theory how long ago did the universe started??

Physics
2 answers:
Rashid [163]2 years ago
7 0

According to the Big Bang theory how long ago did the universe started??
13 to 15 billion years ago
laiz [17]2 years ago
3 0
According to the Big Bang theory the universe started approximately 13-15 billion years ago. The big bang theory is a theory that scientists developed and so the belief is that the universe, all of us, planet, our bodies and everything and planets all just got here from some Non-Magical/Non-Spiritual/Non-omnipotent being but rather scientifically we all just got here from some big explosion.
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What is the DISPLACEMENT of the motorbike rider in the picture?
lutik1710 [3]
120m north east hope this helps
6 0
3 years ago
Determine the displacement of a plane that is uniformly accelerated from 66 m/s to 88 m/s in 12 sec
Llana [10]
Determined the displacement of a plane is 66 m:s
5 0
3 years ago
Inertia is the resistance to change in motion so inertia depends solely on what
Alex Ar [27]
Inertia depends on mass, the more mass the more inertia.
6 0
3 years ago
2. At noon, ship A was 12 nautical miles due north of ship B. Ship A was sailing south at 12 knots (nautical miles per hour; a n
AleksandrR [38]

Answer:

No

Explanation:

Let the reference origin be location of ship B in the beginning. We can then create the equation of motion for ship A and ship B in term of time t (hour):

A = 12 - 12t

B = 9t

Since the 2 ship motions are perpendicular with each other, we can calculate the distance between 2 ships in term of t

d = \sqrt{A^2 + B^2} = \sqrt{(12 - 12t)^2 + (9t)^2}

For the ships to sight each other, distance must be 5 or smaller

d \leq 5

\sqrt{(12 - 12t)^2 + (9t)^2} \leq 5

(12 - 12t)^2 + (9t)^2 \leq 25

144t^2 - 288t + 144 + 81t^2 - 25 \leq 0

225t^2 - 288t + 119 \leq 0

(15t)^2 - (2*15*9.6)t + 9.6^2 + 26.84 \leq 0

(15t^2 - 9.6)^2 + 26.84 \leq 0

Since (15t^2 - 9.6)^2 \geq 0 then

(15t^2 - 9.6)^2 + 26.84 > 0

So our equation has no solution, the answer is no, the 2 ships never sight each other.

8 0
3 years ago
A spring of force constant 1500 Nm-l is acted
olchik [2.2K]

Answer:

1.876 J

Explanation:

First, let’s calculate the compression of the spring from the Hooke’s law:

F=kx,

here, F=75 N is the force acted on the spring, k=1500 N⁄m is the force constant of the spring, x is the compression of the spring.

Then, we get:

x=F/k=(75 N)/(1500 N/m)=0.05 m.

Finally, we can find the potential energy stored in the spring:

PE=1/2 kx^2=1/2∙1500 N/m∙(0.05 m)^2=1.875 J.

correct my answer if it's wrong ^^

7 0
3 years ago
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