3 years ago

In which chemical equation is the number of atoms in the reactants the same as the number of atoms in the products?

Physics

2 answers:

klemol [59]3 years ago

7 0

I’m not very sure but I think it’s 4

Alik [6]3 years ago

3 0

The answer is the second one

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A car accelerates from 30 ft/s to 90 ft/ sec in 6 seconds

Softa [21]

Its acceleration is 10ft/ sec

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3 years ago

If the force that propels the cannonball forward is 500N, how much force will move the cannon backward?

Licemer1 [7]

Answer:

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Explanation:

6 0

3 years ago

goblinko [34]

Answer:

Explanation:

initial velocity u = 32.7 m /s

final velocity v = 50.3 m /s

displacement s = 44500 m

acceleration a = ?

v² = u² + 2 a s

50.3² = 32.7² + 2 x a x 44500

2530.09 = 1069.29 + 89000a

a .016 m /s²

time taken t = ?

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2 years ago

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Harman [31]

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3 years ago

A drop of oil of volume 10m it spread out on water to make a circular firm of radius 10m calculate the tickness of the firm

Effectus [21]

Answer:

h = 3.1 cm

Explanation:

Given that,

The volume of a oil drop, V = 10 m

Radius, r = 10 m

We need to find the thickness of the film. The film is in the form of a cylinder whose volume is as follows :

$V=\pi r^2 h\\\\h=\dfrac{V}{\pi r^2}\\\\h=\dfrac{10}{\pi \times 10^2}\\\\h=0.031\ m\\\\h=3.1\ cm$

So, the thickness of the film is equal to 3.1 cm.

8 0

3 years ago