What is potassiums state at room temperature

1 answer:

8 0

If you mean physical state, potassium is a solid at room temp. For a quick and reliable source of physical info about all elements, see ptable.com, "properties" tab.

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Four children are fighting over the same toy. Mike is pulling North with a 50 N force, Justin is pulling East with a 40 N force,

Musya8 [376]

Answer:

Justin

Explanation:

Given that Four children are fighting over the same toy.

If Mike is pulling North with a 50 N force, Justin is pulling East with a 40 N force, Chantal is pulling South with a 50 N force, and Tykera is pulling West a 30 N force.

Resolving the forces into horizontal X and vertical Y components.

Vertical component ( north and south)

Since Mike is pulling North with a 50 N force and Chantal is pulling South with a 50 N force,

The net Force = 50 - 50 = 0

Therefore, the net vertical force is equal to zero.

Horizontal component ( west and east)

Since Justin is pulling East with a 40 N force and Tykera is pulling West a 30 N force.

The net force = 40 - 30

The net force = 10 N

Since it is positive, it will be due east.

Therefore, Justin gets the toy.

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A circuit contains a single 220 pF capacitor hooked across a battery. It is desired to store three times as much energy in a com

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Answer

The capacitor should be connected in parallel as parallel connection gives the arithmetic sum of capacitance which will give a corresponding sum of energy while capacitors in series gives the sum of the reciprocal if the individual capacitance

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4 years ago

According to Newton's second law of motion, if a rigid body of unchanging mass is observed accelerating, what must be happening?

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First off, Newton's second law<span> of motion is the acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
So therefore, it would be a force is being applied to the mass</span>

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A box rests on the floor. If you pull sideways on the box with a 300 N force, but don't move it, what is the magnitude of the fr

Dahasolnce [82]

The magnitude of the frictional force is B) 300 N

Explanation:

For this problem, we just have to consider the forces acting on the box in the horizontal direction.

There are only two forces in this direction:

- The pull applied by the man, of magnitude F=300 N, forward

- The frictional force, $F_f$ , acting backward