In making a thermometer used to monitor the temperature of the water, a glass tube, a scale, and a thermometric liquid such as alcohol is required.
<h3>What is a thermometer?</h3>
A thermometer is an instrument that is used to measure or read the temperature of a body or a substance.
There are different types of thermometers such as:
- Liquid-in-glass thermometers
- Gas thermometers
- Resistance thermometers
A simple liquid-in-glass thermometer consists of the following parts:
- A glass tube
- A scale
- A thermometric liquid such as alcohol
Therefor, in making a thermometer used to monitor the temperature of the water, a glass tube, a scale, and a thermometric liquid such as alcohol is required.
In conclusion, a thermometer is the instrument used in measuring temperature.
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Example of scalar: speed. Example of vector: velocity
Explanation:
In physics, there are two types of quantities:
- Scalar: a scalar quantity is a quantity having only magnitude, so it is just a number followed by a unit. Examples of scalar quantities in physics are:
Mass
Time
Speed
- Vector: a vector quantity is a quantity having both a magnitude and a direction. Examples of vector quantities in physics are:
Force
Acceleration
Velocity
The two types of quantities can be used in the same event, but in a different way. One of the most common example is the difference between speed and velocity.
In fact, let's consider an object moving in a uniform circular motion: it means that it is moving in a circle at a constant speed. The speed of the object measures only how fast the object is moving, but without telling anything about its direction of motion. The velocity, viceversa, also takes into account the direction of motion, and exactly for this reason, the velocity in a uniform circular motion is not constant, because the direction (it is a vector) is constantly changing. So, in a uniform circular motion, the speed is constant but the velocity is not.
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weight = mass*g is the formula
Answer:
the net electric charge of the iron atom is 2.24 × 10⁻¹⁸ C
Explanation:
Given the data in the question;
we know that neural iron atoms should have same number of protons and electrons i.e 26 and 26 but in the sun's atmosphere, many of their electrons stripped away.
so; we have 26 protons and 12 electrons, meaning ( 26-12=14) 14 electrons have been stripped away.
when we loss electron, we gain positive charge
so, the Net charge of the iron atom of with 26 protons and 12 electrons will be;
q = 26 ( proton charge) + 12( electron charge )
we know that; a singular proton has a charge of 1.6×10⁻¹⁹ C
protons carry negative charge while electrons carry negative
we substitute
q = 26 ( 1.6×10⁻¹⁹ ) + 12( -1.6×10⁻¹⁹ )
q = 2.24 × 10⁻¹⁸ C
Therefore, the net electric charge of the iron atom is 2.24 × 10⁻¹⁸ C
