OK THIS WILL WORTH 25 POINTS IF BEST: WHAT IS THE ONLY NATURAL SUBSTANCE FOUND ON EARTH THAT CAN BE 3 STATES OF MATTER?

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Answer 1
Answer: Every natural substance CAN exist as solid, liquid, or gas, if you make the temperature and pressure right. The only one that exists in all three states all the time, all around us, in the same range of temperature and pressure found naturally on Earth and in which we live comfortably, is water.

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To calculate power, divide the amount of energy transferred by _____________

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Power is defined in physics as the quantity of energy transported or transformed per unit of time. To calculate power, divide the amount of energy transferred by time.

What is power?

Power is defined in physics as the quantity of energy transported or transformed per unit of time. The watt is the unit of power in the International System of Units, equivalent to one joule per second. Power is also referred to as activity in ancient writings. A scalar quantity is a power.

The formula for power is given as the ratio of energy transferred to the time taken.

Its SI unit is Watt, while the SI units for energy and time are seconds. Therefore, we can write,

Power = Energy transfer / Time taken

Joule = Watt / Second

Hence, To calculate power, divide the amount of energy transferred by time.

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P = E/t
where P is power, t is time in seconds and E is energy in joules

Why does water fill the bottom of a glass rather than cling to the side

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When you pour water into a glass, gravity is pulling the water down to the bottom of the glass instead of pulling it to the sides and since glass is a substance that glass easily rolls off of, it is easier for the water molecules to locate at the bottom. 

Which stream has the greatest potential energy on the top: stream with steeper slope or stream with gentle slope?

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i think the stream with the steep slope but i'm not entirely sure.

PLEASE HELPWhich of the following is an example of a physical property?

Flammability
Reaction with bases
Solubility
Reaction with oxygen

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Answer:

The correct answer is C) Solubility

Explanation:

Final answer:

Solubility is the example of a physical property from the given options, as it can be observed and measured without changing the substance's chemical identity.

Explanation:

The question is asking which of the listed options is an example of a physical property. A physical property is a characteristic of matter that can be observed or measured without changing the substance's chemical identity. Among the choices given - flammability, reaction with bases, solubility, and reaction with oxygen - solubility is a physical property. This is because solubility refers to a substance's ability to dissolve in a solvent, which can be observed without causing a chemical reaction. On the other hand, flammability and reaction with bases or oxygen are chemical properties, as they describe a substance's ability to react and form new substances.

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a Car with a mass of 2000 kg is moving around a circular curve at a uniform velocity of 25 m/s the curve has a radius of 80 m what is a centripetal force on the car

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Well, first of all, the car is not moving at a uniform velocity, because,
on a curved path, its direction is constantly changing.  Its speed may
be constant, but its velocity isn't.

The centripetal force on a mass 'm' that keeps it on a circle with radius 'r' is

             F = (mass) · (speed)² / (radius).

For this particular car, the force is

                    (2,000 kg) · (25 m/s)² / (80 m)

                 = (2,000 kg) · (625 m²/s²) / (80 m)

                 = (2,000 · 625 / 80)  (kg · m / s²)

                 =              15,625  newtons .

How can resistance be useful and where can they be useful?

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-- Resistance can be useful among the population of a repressive government.
Although it can be dangerous for those who resist, it can also exert pressure
against the regime to alter its repressive practices.

-- Resistance can also be useful in electronic circuits. "Lumped" components with
known numerical values of resistance are used to divide voltage, limit current, and
dissipate controlled amounts of electrical energy.