What distinguishes a tornado watch from a tornado warning?

Answers

Answer 1

Answer: "Watch" . . . atmospheric conditions exist that could
produce tornados, but none have been seen yet.

"Warning" . . . tornados have formed and have been seen.

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A typical mirror in a person's house would be an example of a/an _______ mirror. A. concave B. convex C. angular D. plane
The main difference between the internal combustion engine and the diesel engine is that the diesel engineA. has no connecting rods. B. does not have a crankshaft. C. has no ignition system. D. does not utilize pistons.
L 10. A car with a mass of 2,000 kilograms is moving around a circular curve at a uniform velocity of 25 meters per second. The curve has a radius of 80 meters. What is the centripetal force on the car?
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What is the unit of measurement for power?A. m/s2B. wattsC. joulesD. newtons

A rock containing valuable minerals that can be mined is called A. An inorganic compound
B. An igneous rock
C. An ore
D. An organic compound

Answers

A rock containing valuable minerals that can be mined is called an ore. The correct option is C.

What is an ore?

Ore is a deposit of one or more valuable minerals present inside the Earth's crust.

Metals essential to industry and trade, such as copper, gold, and iron, are found in the most valuable ore deposits. Copper ore is mined for a number of industrialapplications.

Ore is natural rock or sediment that contains one or more valuable minerals, usually metals, and can be mined, treated, and sold for a profit.

Mining extracts ore from the Earth, which is then treated or refined, often through smelting, to extract valuable metals or minerals.

Crushing the rock is the first step in extractingore from it. Heap leaching, flotation, or smelting are methods for extracting ore from rock.

Thus, the correct option is C.

For more details regarding an ore, visit:

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What is the relationship between the direction of current and direction of electron flow in a current-carrying wire?

Answers

Explanation :

The direction of current flow is in opposite direction to that of the direction of electron flow.

Electric current is defined as the electric charge per unit time. Simply it is the flow of electrons in a circuit. When an electric potential is applied in a circuit, the current moves from the positive terminal of a battery to the negative terminal.

But the electrons travel from negative to the positive terminal i.e in the direction opposite to that of current flow.

Classical current flows in the opposite direction (positive to negative) to the electron flow (negative to positive).

What is a newton equal to in terms of units of mass and acceleration?

Answers

1 newton =
the force that accelerates 1 kilogram of mass at the rate of 1meter per sec²

1 N = 1 kg-m/s²

1N= force needed to accelerate 1kg object to speed of 1m/s2

The mass of a star can be determined by studyinga. the wavelength of light emitted by the star.
b. the color of the star.
c. Kepler's laws.
d. binary star systems.

Answers

The correct answer for the question that is being presented above is this one: "a. the wavelength of light emitted by the star." The mass of a star can be determined by studying the wavelength of light emitted by the star. It also has something to do with the gravitational force that it exerts.

Answer:

D. Binary Star Systems

Explanation:

What kind of energy involves the flow of positive charges?

Answers

Answer:

Electrical energy

Explanation:

Electrical energy is the form of energy that results from the existence of an electric current, that is, a flow of electrical charges, through a metallic conductor cable as a result of the potential difference that a generator is applying at its ends.

Electrical would be the energy that involves the flow of positive charges.

A dryer runs on 240 V with a resistance of 30.0 Ω. What is the current of the dryer?

Answers

Answer:

Current, I = 8 Amps

Explanation:

Ohm's law states that at constant temperature, the current flowing in an electrical circuit is directly proportional to the voltage applied across the two points and inversely proportional to the resistance in the electrical circuit.

Mathematically, Ohm's law is given by the formula;

$V = IR$