According to the big bang theory, the universe was once a very and hostile place.

1 answer:

7 0

According to the big bang theory, the universe was once a very C. hot and hostile place, and it expanded rapidly. This rapid expansion was the very reason it eventually cooled down and eventually got to its present state where all the planets and galaxies and what not were created.

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A force of 7.0 N acts on a block of wood at an angle of 50 degrees above the horizontal as the block moves a distance of 6.4 met

Aneli [31]

Answer:

28.796 J

Explanation:

I hope that it's a correct answer.

6 0

3 years ago

Anika asks Eva to roll a basketball and then a bowling ball to her. Which requires more force to roll, and why?

Paul [167]

It's easy to roll the the basket ball than bowling ball

It is because bowling ball is solid spherical ball which will have less moment of inertia

its moment of inertia is given as

$I = \frac{2}{5}mR^2$

While for the hollow ball like basketball we know that moment of inertia is given as

$I' = \frac{2}{3}mR^2$

so here we can see for the same mass if we take basketball then its moment of inertia is more so it is easy to roll basket ball then to roll bowling ball.

So it is easy to roll basket ball then rolling ball

6 0

4 years ago

Read 2 more answers

A paintball is shot horizontally in the positive x direction at time t after the ball is shot it is 4 cm to the right and 4 cm b

Artist 52 [7]

<u>Answer:</u>

At time 2t the paint ball is at 8 cm to the right and 16 cm to the bottom

<u>Explanation:</u>

We have equation of motion , $s= ut+\frac{1}{2} at^2$ , s is the displacement, u is the initial velocity, a is the acceleration and t is the time.