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Why After three half-lives what fraction of a radioactive sample remains?
After three half-lives, only 1/8 (or 12.5%) of the original radioactive sample remains. This is because each half-life reduces the amount of radioactive material by half, so after three half-lives, you would have (1/2) * (1/2) * (1/2) = 1/8 of the original sample remaining.
What do the different movements of watches?
The different movements of watches refer to the mechanisms inside that power the timekeeping. There are three main types: mechanical, quartz, and automatic. Mechanical movements are powered by winding a mainspring, quartz movements use a battery to send electrical impulses through a quartz crystal, and automatic movements are powered by the motion of the wearer's arm.
If the mass remains constant what happens to the acceleration of an object is the unbalanced force on it is tripled?
If the mass of the object remains constant and the unbalanced force on it is tripled, the acceleration of the object will also triple. According to Newton's second law of motion (F=ma), acceleration is directly proportional to the force applied, so increasing the force by three times will result in the acceleration being three times greater.
What is a chronograph movement as apposed to an automatic or quartz movement?
Typically, "Chronograph" does not describe the movement of a watch, but rather the "complication" of a watch's movement. A watch's complication is anything that provides advanced functionality, such as moon-phase display or perpetual calendar. In this case, "Chronograph" refers to a watch that is capable of stopwatch functionality in addition to timekeeping. Usually this is built into three separate dials for hours, minutes, and seconds. Such a watch can have any movement type (automatic, quartz), and can also have several complications at once. Note that digital watches with stopwatch functionality are considered "digital chronographs", and there is also the "analog-digital chronograph". Some online retailers confuse complications with the actual movement (putting "chronograph" for the movement), so further research should be done to determine whether the watch actually uses quartz or automatic movement.
What are three examples of reference points that are stationary reltive to earth?
Mount Everest: Its height remains constant regardless of the movement of the Earth. The North Pole: It acts as a fixed point for navigation as the Earth spins on its axis. Local post office: Its location on the Earth's surface remains stationary even as the Earth rotates.
What percentage of the halite remained after three minutes?
5
Does quartz split in three directions?
Yes, quartz exhibits three directions of cleavage, which means it tends to break along certain planes into smaller pieces. These three directions are related to the crystal structure of quartz.
What is the origin of quartz?
Quartz is a naturally occurring mineral found in all three rock types.
Does quartz have three prominent cleavage directions developed at right angles to one another so that it breaks into cubes?
No, quartz has no cleavage.
What is three-eights in percentage?
three-eights in percentage = 37.5%
Is quartz a three-dimensional framework silicate?
Yes, quartz is a three-dimensional framework silicate. It is composed of silicon-oxygen tetrahedra linked in a continuous framework structure, where each silicon atom is bonded to four oxygen atoms. This arrangement gives quartz its characteristic hardness and crystal structure.
Is quartz igneous?
Theoretically yes, though any given sample of quartz may contain inclusions (non-quartz stuff trapped inside) making it heterogeneous.
What percentage of three is five?
The percentage of three that is five is 166.67%.
What fraction of a sample remains after three half lives?
An eighth remains.
How many quartz in 3 cups?
Three cups = 3/4 quart.
Identify three minerals that are normally found with quartz in samples of andesite rock?
Three minerals commonly found with quartz in andesite rock are feldspar (specifically plagioclase), biotite mica, and amphibole (such as hornblende). These minerals are all typically present in andesite as part of the overall composition of the rock.
Which percentage is equal to three quaters?
percentage which is equal to three quarters = 75%
