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How were letters sealed at Tudor times?
Letters at Tudor times were sealed with wax
Why is the sealed knot so called?
Because the "Sealed Knot" came from the English Civil War Love you Jordan(:(L)<3
Were glass jars used in 1864?
Yes. Glass has been around for about 9000 years and glass bottles were produced 3500 years ago. The Jamestown settlers made glass bottles and jars in the early 1600s. Glass jars for preserving food were sealed with a flat tin lid and wax until 1858 when John Mason invented the Mason Jar with a screw-on lid. By 1864 a glass jar would look very similar to a modern peanut butter jar.
The fate of the french monarchy was sealed by the king's flight to varennesdo you agree?
Yes. He was probably doomed anyway, but the flight put the liud on it. It was an obvious, irrefutable attempt to join the army that was at war with France, at a time when the declaration of 'La Patrie en Danger' was in force. Before Varennes, Louis XVI could have given in and genuinely accepted a constitution. It would have been utterly out of character and probably a personal impossibility, but the choice existed. After Varennes, he was guilty of treason and. as I said, doomed.
Why was Bastille considered a symbol of royal authority?
The Bastille had historically been used as a prison; more especially, as a place to which people could be sent under a 'lettre de cachet' - a sealed letter, signed by the King, which directed a person's imprisonment for an indefinite period and without trial or appeal. This was one of the more obvious misuses of absolute royal power. Noblemen who wanted somebody out of the way could apply for a lettre de cachet, and often (especially if they bribed the right courtier) get it. Off to the Bastille went their enemy (or troublesome child, or creditor, or whoever), never to be heard of again. Actually, the power had been less and less used in the years before the revolution, and when the insurgents took the Bastille, they found precisely seven prisoners: four forgers, two lunatics, and a young nobleman locked away by his own family.
When a sealed thermos bottel ful of hot coffee is shaken then what are the changes?
as kinetic energy is directly proportional to the temperature therefore by shaking the bottle the K.E is increased its meant that there will be a slightly change in temperature occurs.
When a sealed Thermos bottle full of hot coffee is shaken what are the changes if any in a the temperature of the coffee b the internal energy of the coffee?
There is a large increase in the temperature of the coffee due to the large amount of kinetic energy inputed into the system through the shaking motion. Thus due to the heat being released there is a large decrease in the internal energy of the system
Where and how does most heat loss occur in a thermos bottle?
Most heat loss in a thermos bottle occurs through conduction and radiation. Conduction happens through the walls of the thermos, which can be reduced by using materials with low thermal conductivity. Radiation occurs through the opening of the thermos, so keeping it sealed tightly minimizes this type of heat loss.
Why the thermos bottle keeps hot water warm for a long time?
A thermos bottle works by minimizing heat transfer through its vacuum-sealed double-walled construction. The vacuum between the walls prevents heat loss through conduction and convection, while the reflective coating on the inner wall reduces heat transfer through radiation, keeping hot water warm for an extended period.
What keeps a thermos at the same high temperature with out it cooling?
A thermos uses a vacuum-sealed chamber to prevent heat transfer by conduction, convection, and radiation. The vacuum layer stops air and gas molecules from transferring heat, while the reflective coating on the inner surface helps prevent heat loss via radiation. These combined factors help to keep the contents of the thermos hot without cooling down quickly.
A person shakes a sealed insulated bottle containing hot coffee for a few minutes what is the change in the temperature of the coffee. what is the change in the internal energy of the coffee?
The shaking doesn't significantly change the temperature of the coffee inside the sealed insulated bottle because the heat loss or gain is minimal due to the insulation. However, the shaking does increase the internal energy of the coffee by increasing its kinetic energy due to the agitation caused by shaking.
Why an empty glass bottle with a sealed cap float on water?
An empty glass bottle with a sealed cap floats on water because the air trapped inside the bottle provides buoyancy. The air in the bottle is less dense than water, causing the bottle to float on the surface. The sealed cap prevents water from entering the bottle, maintaining its buoyancy.
How does a Thermos keeps drink warm?
Thermos are double walled containers. Between each wall, the space is vaccuum sealed, so there are no air particles. This decreases the transfer of energy (by convection) from inside the warm drink to outside in the atmosphere. The second way your thermos keeps your drink warm is the shiny surface inside your thermos. Photons carrying energy bounce off the shiny surface inside the thermos, keeping high energy photons around the infrared wavelength inside the thermos. Next time you drink from your thermos, think science!
What are the best example of an isolated system?
A sealed thermos containing hot coffee is a good example of an isolated system because it minimizes the exchange of heat with the surroundings. Another example is an insulated ice chest containing ice, as it also limits the transfer of heat in or out of the system.
If a bottle is tightly sealed with heat what would happen?
If a bottle is tightly sealed and heated, the pressure inside the bottle will increase as the air or gas inside expands. This pressure build-up could potentially lead to the bottle exploding if the pressure becomes too great for the bottle to contain. It is important to be cautious when heating sealed containers to prevent accidents.
Who invented the thermos?
The thermos was invented by Sir James Dewar in 1892. He developed the vacuum flask, which is now commonly known as a thermos, to keep liquids hot or cold for extended periods of time by minimizing heat transfer through a vacuum-sealed container.
Is a thermos an insulator?
Yes, a thermos is designed to be an insulator. It has a double-wall construction with a vacuum-sealed layer in between, which helps to minimize heat transfer and keep drinks hot or cold for an extended period of time.
