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Ad libitum [116K]
3 years ago
15

Which statement explains why a chemical equation must be balanced?

Physics
2 answers:
Katena32 [7]3 years ago
7 0
The answer to this question is b
RideAnS [48]3 years ago
3 0

Answer:

The answer is D ape.x

Explanation:

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An output gear has 10 teeth and an input gear has 40 teeth. What is the mechanical advantage of gear combination? Is force or sp
yKpoI14uk [10]

Answer:

Mechanical advantage: 4. Speed is multiplied

Explanation:

The mechanical advantage of gear combination is

MA = \frac{N_i}{N_o}

where

N_i is the number of teeth in the input gear

N_o is the number of teeth in the output gear

Here we have

N_i = 40\\N_o = 10

So we find

MA = \frac{40}{10}=4

In this example, it is the speed to be multiplied: the speed of the output gear is 4 times larger than the speed of the input gear. In fact, the mechanical advantage can be rewritten as

MA= \frac{\omega_o}{\omega_i}

where

\omega_i is the angular speed of the input gear

\omega_o is angular speed of the output gear

So re-arranging the equation, we find

\omega_o = MA \cdot \omega_i = 4 \omega_i

so, the speed of the output gear is 4 times larger than the speed of the input gear.

7 0
3 years ago
Determine the average velocity for an object that moves from x = 3.5 m to x =
SashulF [63]
-1.5-3.5 /2




-5/2=-2.5 m/s
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3 years ago
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