0
Why do you need to tie a piece of string around the solid while lowering it into a measuring cylinder?
Wiki User
∙ 16y ago
I presume that you are trying to find the volume of an irregular solid. It is usual to tie a piece of thin cotton around the solid prior to lowering it into the measuring cylinder. This is so that you can control the decent of the object, i.e. it is not dropped into the cylinder causing the water to splash out, thus not giving an accuarate value for volume of the solid.
Wiki User
∙ 16y ago
Add your answer:
Earn +20 pts
What is that thing called that wraps string around a piece of your hair?
hair-wrap?
When force is and what direction of motion no work is done?
Perpendicular (90o). Like whirling an object around on a piece of string. The force is along the string, at right angles to the motion.
What is the meaning of wind around?
Including "around" tends to hint this is a heteronym, with the word 'wind' being both a noun and meaning movement of air, or a verb meaning to tighten a mechanical sping, or maybe to wrap a string or wire around another object. So probably this is the latter case. For example, in the instance of making a solenoid, you would get a length of wire and "wind [it] around" a cylinder, so that later when you applied a current you would have a temporary electromagnet. The act of wrapping this length of wire can be described as to "wind around".
What happened to hordon cylinder experiment?
If you mean the LHC large hadron collider they conducted many many tests but recently failed to create in minature black hole which hurt the string theory as it may unprove it.
What part of the crossbow stores the potential energy?
I'm no hunter, but there is something that come around the butt of the arrow and releases it causing it to shoot. This means that the potential energy is stored in the elastic/rubber/string thing that launches the arrow Actually the energy is stored in the bow, all the string provides is tension. as you pull the string back, the distance between the bow tips gets pulled in, spreading the potential evenly around the entire bow. Upon pulling the trigger, the bow is allowed to relax back into shape, pulling the string taught, and forcing the arrow forward. If you were to try and use the string as a store (IE. a rubberised string), there would be much less area to hold potential, and as a result you would have to pull the string considerably further back than the tip spacing of a crossbow (think slingshot).
How do you get the circumference of a cylinder with a string?
Wrap the string around the cylinder, mark where the end of the string touched itself, remove the string, and measure from the end of the string to the mark.
A cylinder 90 cm high has a circumference of 20 cm A string makes exactly 6 complete turns round the cylinder while its two ends touch the cylinder's top and bottom how long is the string in cm?
For the string to wrap around the cylinder and yet do so by "coiling" around the outside of the cylinder from bottom to top, it will need to be 150cm long.
What measuring tool do you need to measure the distance around a basketball?
A piece of string and a ruler or tape measure.
How do you find head circumference?
You can place a string around the head, and then measure the string. Or measure directly with a measuring tape, if you have one that is flexible enough (basically, a measuring tape made up of cloth or something similar).
How do you find the perimeter of a jigsaw puzzle using string?
You can find the perimeter of any planar (flat) object using string by wrapping the string around the outside of the object, noting the point on the string where you return to the starting point, and then measuring the length of that portion of the string.
How do you measure bust without a measuring tape?
If you have a ruler and a piece of string, you could use the string to find the distance around the bust (or whatever you wanted to measure), mark the point at where the string starts to overlap, then measure the string using the ruler.
What is the circumference of a cup?
A cup is usually a roughly cylindrical hollow container. The circumference of a cup would be the length of a piece of string wrapped around the cylinder.
What instrument measures a soccerfield?
A measuring wheel, string or measuring tape. A laser is also used to measure distances to as far away as the moon.
A cylinder 72 cm high has a circumference of 24 cm A string makes exactly 4 complete turns round the cylinder while its two ends touch the cylinder's top and bottom How long is the string in cm?
If you open the cylinder it becomes a rectangle. Because the string encircles the cylinder four times while it moves up the cylinder's height, it then moves around 24cm x 4 = 96cm of "horizontal" (level with the base of the cylinder or the rectangle that is formed) distance and 72cm of the "vertical" (up the cylinder) distance. These distances form a right-angled triangle. By using Pythagoras' theorem, a2 + b2 = h2, where 'h' is the hypotenuse of the triangle and the length of the string, we can calculate the actual length of the string as thus: h2 = a2 + b2 = 722 + 962 = 5184 + 9216 = 14400 h = the square root of 14400 = 120cm. ---- Another method uses the same idea, but forms four identical triangles; one for each turn of the string around the cylinder. When the cylinder is unrolled into a rectangle as before, each triangle has a horizontal distance of 24cm and a vertical distance of 72cm/4 = 18cm. Using Pythagoras' theorem again, we can calculate the length of the hypotenuse of one of these triangles, which works out as 30cm. We have four such triangles, so multiplying that by 4 gives an answer of 120cm, just as before.
What are gauges capable of measuring?
Depends on what you are measuring. For example if you are measuring waves you could use laser and string gauges to measure with. All types of measurement can be found you just have to know what you are looking for.
Precision and non-precision measuring instrument?
precision instrument: caliper, micrometer non-precision measuring instrument: your hand, a piece of string
What are the precautions taken when finding density?
ensure that the object is not wet
