Technology

The mining method used to mine iron ore depends on the placement of the ore body and surrounding environment. - Addition below I would say the majority (over 95%) or iron ore mines are open cut. /BL

The amount of weight steel can hold depends on various factors such as the type of steel, its thickness, and the specific design of the structure. Generally, steel is known for its high strength-to-weight ratio and can support heavy loads ranging from hundreds to thousands of pounds per square inch. To determine the exact weight steel can hold, engineers perform calculations based on these factors.

13 centimeters are 5.1181102362 inches.

No, wood is not a good insulator of electricity. It is a natural conductor of electricity, meaning it can allow electric current to flow through it rather than insulating against it. It is important to keep wood away from electrical sources to prevent the risk of electric shock or fire.

1 MW is equal to 1000 kW, since "kilo" means 1000 times the base unit.

Thermal conductivity is a material property that describes the ability of a material to conduct heat. It is defined as the rate at which heat is transferred through a material per unit of thickness, area, and temperature difference. Materials with high thermal conductivity transfer heat more efficiently than materials with low thermal conductivity.

When you heat glass enough to almost melt it, it becomes a gooey, gluey substance,

like very stiff slime. In that condition, it's rolled flat to make window-glass, or spun

on the end of a rod to make cups and bottles, or blown up like a balloon to make

bottles with very thin necks.

Also when glass is in that condition, if you grab a little pinch of it (with tongs!)

and slowly pull it away from the main glob, it stretches way out and becomes

very thin before it finally breaks. It can be stretched to where it almost has the

consistency of cotton candy or fine hair, and that's the material used in

fiberglass home insulation. When it's stretched not quite as thin as that, to the

thickness of a thick sewing thread or a nylon fishing line, it's quite flexible, and

in this condition, a plastic jacket is formed over it, just like a piece of wire, then

several of them are jacketed into a single cable and used for "fiberoptic" data

communication ... a pulsed bright infrared light, injected into one end with a

laser diode, travels very nicely through several miles of this glass thread to be

received at the other end of the cable.

So "fiberglass" is glass that's been melted and stretched until it's no thicker

than all those other things we've been calling "fiber" for hundreds of years.

To calibrate a pH meter, you typically use buffer solutions with known pH values (pH 4.01, pH 7.00, and pH 10.00 for example). Dip the pH meter probe into each buffer solution and adjust the meter readings to match the known pH values. Repeat this process for each buffer solution to ensure accurate calibration.

This problem can be answered one of two ways. The easy answer is 150 degree The other answer is to create a 360 degree model in you head or on a digram of the equation. When an angle is entered onto a surface that is flat it is only half of the circle or 180 degrees. Then because it enters at the 30 degree angle its trajectery on its way out is then again 180 degrees minus the 30 of entry leaving the same 150 degrees.

A piece of wood is typically straight, as it is often cut from a tree trunk or branch. However, if the wood is in its natural, unprocessed form, it may have a round shape due to being part of the tree.

According to the Britannica Concise Encyclopedia, the Geiger counter was invented by Hans Geiger. For more information, see the Related Link.

Physics is fundamental to the development of technology by providing the underlying principles and understanding of how things work. For example, knowledge of electromagnetism is essential for the design of electrical devices such as generators and motors, while principles of optics are critical for the development of cameras and telescopes. Without a deep understanding of physics, technological advancements would not be possible.

There are 1000 grams in a kilo. So, this means 3 kilos contain 3000 grams, which, if divided in packs of 50 grams, we will have 60 units of 50 grams.

Robots can move using various mechanisms, including wheels, tracks, legs, and propellers. These mechanisms are powered by motors or other actuators that provide the necessary force and motion for the robot to navigate its environment. Additionally, some robots can also move by crawling, hopping, or flying, depending on their design and intended tasks.

The wavelength of microwaves typically ranges from 1 millimeter to 1 meter in length. The exact wavelength depends on the frequency of the microwaves, with lower frequencies having longer wavelengths and higher frequencies having shorter wavelengths.

No, although Edison was apparently often jealous of Tesla, I don't believe he had anything to do with this. Tesla's first experiment with transmitting electricity through the ground caused a 130 foot lightning bolt, and then set the local generator on fire. His attempt at building a full scale version ran out of funding, and he could not get more because he had lied about its purpose in the first place, claiming it was for communication.

A pendulum swings due to the force of gravity acting on it as it moves back and forth. When the pendulum is released from a raised position, gravity causes it to fall and start swinging. The length of the pendulum and the angle at which it is released also affect how it swings.

A sphygmomanometer consists of three main parts: a cuff to wrap around the arm, a pressure bulb to inflate the cuff, and a pressure gauge to measure blood pressure readings. Some models may also have a stethoscope to listen to the pulse.

The trains carrying the nuclear material have been dubbed "glow trains" by anti-nuclear groups. A train carrying nuclear waste somehow derailing or colliding with another train and thus causing a massive disaster, possibly wiping out Las Vegas or some other city, while en route to the Yucca Mountain Federal Waste Repository.

Sound energy is a form of mechanical energy produced by vibrations that travel through a medium, such as air or water. These vibrations create changes in air pressure that our ears interpret as sound.

Physics provides the fundamental principles that govern the behavior of matter and energy in the physical world. Technology relies on these principles to design and develop new devices, tools, and systems that improve our quality of life. Understanding physics can help engineers and scientists innovate and create new technologies to address various challenges and advance society.

A constant volume thermometer measures temperature by keeping the volume of the gas inside the thermometer constant. As temperature changes, the pressure of the gas inside the thermometer also changes, which can be correlated to the temperature. This type of thermometer is commonly used in laboratories and for precision measurements.

Definitely current is a SCALAR. Current density, of course, is a vector quantity

Current = charge / time

Both charge and time are scalars

Current density = current / area

Here area is a vector quantity

Hence scalar product of current density and area give scalar quantity i.e. current.

So electric current is a scalar

Of course we assign +ve and -ve sign to currents. It is not because of direction as we do incase of vectors. But it is only algebraic sign.

Nuclear weapons arvastly more danerous than regular TNT because not only do they emit high levels of deadly radiation, which can last for decades, but even the most simple of atomic weapons, such as those used at Hiroshima and Nagasaki have a yield equivilant to twenty thousand tons of TNT (20 kilotons). Also, if used enmasse, nuclear weapons could cause a "nuclear winter", which would be the result of the dust and smoke created by nuclear blasts, which would fill the atmosphere and block out sunlight, plunging the earth into a long-lasting (I'm not sure exactly how long, but it would be more than years for sure, maybe even more than decades), radioactie winter.