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Mumz [18]
3 years ago
12

If aluminum loses all 3 electrons how do you write the ion

Physics
1 answer:
Kruka [31]3 years ago
5 0
It will be then a positive ion and will be written as,
Al^3+
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equal and opposite reaction.

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A load of 500 N is placed 8 N from the pivot what is the turning moment of the load
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A car travels at a steady 40.0 m/s around a horizontal curve of radius 200 m. What is the minimumcoefficient of static friction
zhenek [66]

Answer:

c. 0.816

Explanation:

Let the mass of car be 'm' and coefficient of static friction be 'μ'.

Given:

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As the car is making a circular turn, the force acting on it is centripetal force which is given as:

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The frictional force is given as:

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f=\mu mg

Now, the centripetal force is provided by the frictional force. Therefore,

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Plug in the given values and solve for 'μ'. This gives,

\mu = \frac{(40\ m/s)^2}{200\ m\times 9.8\ m/s^2}\\\\\mu=\frac{1600\ m^2/s^2}{1960\ m^2/s^2}\\\\\mu=0.816

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7 0
3 years ago
A spring 1.50 m long with force constant 448 N/m is hung from the ceiling of an elevator, and a block of mass 10.9 kg is attache
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Answer:

Explanation:

Let the extension in the spring be x .

restoring force = weight of block

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c ) When the cable snaps , both elevator and block undergo free fall . In this case apparent g = 0

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So a net acceleration a will act on the block

a = 127.41 / 10.9

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The block will undergo SHM with amplitude equal to 28.44 cm .

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