2 years ago

What is a pulley system?

1 answer:

3 0

A device consisting of a wheel over which rope or chain is pulled in order to lift a heavy object.

Examples- Elevators use multiple pulleys in order to function. A cargo lift system that allows for items to be hoisted to higher floors is a pulley system

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An airplane is flying in a horizontal circle at a speed of 100 m/s. The 80.0 kg pilot does not want the centripetal acceleration

Tema [17]

Answer:

The force will be "5,488". A further solution is provided below.

Explanation:

The given values are:

speed,

v = 100m/s

mass,

m = 80 kg

acceleration,

a = 7

Now,

Radius will be:

⇒ $r=\frac{v^2}{ac}$

⇒ $=\frac{(100)^2}{7\times 9.8}$

⇒ $=\frac{10000}{68.6}$

⇒ $=145.77$

Force will be:

⇒ $F=m\times ac$

⇒ $=80\times 68.6$

⇒ $=5488$

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2 years ago

The contraction of muscles in the stomach walls

soldi70 [24.7K]

<span>The contraction of muscles in the stomach walls is called peristalsis.
Peristalsis works to physically break down food and move it forward.

Hope this works! :)</span>

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2 years ago

which of the following best represent positive self-talk A. "I'm making progress". B. "its just not my day". "I've tried. I just

KatRina [158]

A. I'm making progress

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5. bending the electric wire a.change in size <br>b.change in shape <br>c.change in texture

il63 [147K]

Answer:

change in shape

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Ganezh [65]

Answer:

A. topsoil the answer

Explanation:

I think its a correct answer

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