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What causes the picture tube to go dark during the vertical and horizontal retrace times?
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∙ 11y ago
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∙ 11y ago
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Is length measured vertical or horizontal?
Length can be measured either way. The actual definition of length is the longest dimension.A shape that is two units horizontal and three units vertical will have a length of 3, and in this case, the length is measured vertical. At the same time, a shape that is three units horizontal and two units vertical will also have a length of 3, but in this case, the length is measured horizontal.Many people make the mistake of thinking that length is always horizontal or always vertical. This is incorrect, however. The easiest way to see that this is false is to rotate the shape 90 degrees; this causes the length to change to what was before the width, and as such, length is not consistent, even though the shape is the same. Length is always the longest dimension. As such, width is always the dimension that makes a (two-dimensional) right angle with the length. This will always just be the other dimension in two-dimensional objects.
What can shift a quadratic graph horizontally?
If the equation is a(x-n)2+c, c causes the vertical shift. By setting the part in parenthesis, x-n, equal to 0, you can find the horizontal shift (x-n=0). I hope this helped :)
Which way are tennis strings generally supposed to break vertical or horizontal?
Strings aren't "supposed" to break. They break due to friction caused by repeated rubbing back and forth across each other. When impacted with the ball, the path of the swing causes the mains (verical strings) to shift their position on the crosses (horizontal strings). This "sawing" motion generally results in breaking the mains before the crosses.
What causes white unraised horizontal lines on fingernails?
The white area in fingernails and hair are caused by air. That's why snow is white and not blue. Little bumps and bruises that are done to the bed of the nail cause these imperfections.
What would a theodolite be used by?
The vertical angles are all measured from an assumed horizontal plane....e.g. level ground. So the instrument must be carefully "leveled" when you set it up (usually on a tripod). The course adjustment for the instrument starts with the tripod legs, then the leveling screws of the base, and the leveling of the sight tube. Rotating the instrument to various horizontal azimuths helps to confirm the instrument is level no matter which direction it faces. Horizontal angles are often referenced to North (which can be either true north or magnetic north) but on building construction sites, its more important to align to a structural element of the building, usually a side of the foundation. So many times a corner point serves as the start and all horizontal angles are measured relative to a side of the structure starting from the corner point to another corner point. The precision of the theodolite lies in the direct reading micrometer scale in the telescope (sighting tube). The transit (the poor brother of the theodolite) often uses vernier scales for measurement. When you sight on the target with the telescope, the horizontal angle is read off the circle (scale at the rotating base of the telescope), and the vertical angle is read directly from the micrometer scale seen in the telescope. Its a good practice to take a reading and record both angles. Then rotate the telescope completely in one direction (say clockwise) and take a second reading and record both angles. Then rotate the telescope completely in the opposite direction and take a third set of readings and record them. Then calculate the average vertical angle and the average horizontal angle...and it is more likely that if anyone were to repeat these measurements, they would probably come closer to the averages of your measurements than to any one of the three individual measurements you took. Keep in mind that as the day goes on, temperatures tend to rise..and heat causes most materials to expand and could throw things out of whack. Also, over long distances, heat shimmer can make it difficult to accurately sight on the target even with magnification of the telescope. So shading the instrument and planning your work earlier in the day when temperatures are cooler can also factor into the precision of your measurements
What is horizontal and vertical amplifier in cathode ray oscilloscope?
The horizontal and vertical amplifier in the cathode-ray oscilloscope are deflection plates. The horizontal amplifier causes the beam to be deflected horizontally at a rate that is uniform. The vertical amplifier causes the beam to deflect vertically.
What is a yaw?
A yaw is the rotation of an aircraft about its vertical axis which causes the aircraft to deviate from its preferred horizontal flight line.
What causes a column of air spinning like a roll of toilet paper to turn into a vertical position?
If you are referring to the formation of a mesocyclone, this occurs when the horizontal vorticity meets the updraft. The updraft helps lift the vorticity upwards and in the process tilts the axis from horizontal to vertical.
What causes deep lines rivets in fingernails?
The deep *vertical* lines in your fingernails are genetic. If you have *horizontal* ridges in your nails, you should see a doctor.
How does the unbalanced force of gravity affect the horizontal and vertical velocities of an object in projectile?
In the absence of air resistance, the force of gravity has no effect on the horizontal component of a projectile's velocity, and causes the vertical component of its velocity to increase by 9.8 meters (32.2 feet) per second downward for every second of its flight.
How does the unbalanced force of gravity affect the horizontal and vertical velocity of an object in projectile?
In the absence of air resistance, the force of gravity has no effect on the horizontal component of a projectile's velocity, and causes the vertical component of its velocity to increase by 9.8 meters (32.2 feet) per second downward for every second of its flight.
What causes a tornado to turn vertical?
The tornado itself is vertical when it first forms. The rotation that forms it starts out as what is called horizontal vorticity. This vorticity can get caught in the updraft of a thunderstorm, tilting it into a vertical position. The new vertical rotation joins with the updraft to become a mesocyclone. Under the right conditions the mesocyclone can tighten and intensify to produce a tornado.
Is length measured vertical or horizontal?
Length can be measured either way. The actual definition of length is the longest dimension.A shape that is two units horizontal and three units vertical will have a length of 3, and in this case, the length is measured vertical. At the same time, a shape that is three units horizontal and two units vertical will also have a length of 3, but in this case, the length is measured horizontal.Many people make the mistake of thinking that length is always horizontal or always vertical. This is incorrect, however. The easiest way to see that this is false is to rotate the shape 90 degrees; this causes the length to change to what was before the width, and as such, length is not consistent, even though the shape is the same. Length is always the longest dimension. As such, width is always the dimension that makes a (two-dimensional) right angle with the length. This will always just be the other dimension in two-dimensional objects.
Why does the horizontal component of velocity for a projectile remain constant while the vertical component changes?
Since the velocity is constant due to the fact that there are no external forces acting in the horizontal direction, if you neglect air resistance, therefore, the horizontal velocity of a projectile is constant.
How does gravity affect the 2 components of projectile motion?
-- Gravity causes the vertical component of projectile motion to vary according to the local acceleration of gravity. -- Gravity has no effect at all on the horizontal component of projectile motion.
What causes a tornado's rotation?
The rotation originate from the speed and direction of the wind changing with altitude. This sets air rolling horizontally. This horizontal rolling can be turn vertical by the updraft of a thunderstorm. This can then tighten and intensify to form a tornado.
What is the operating principle of the venturi meter of flow measurement?
Air flowing quickly over the open top of a vertical tube lowers the air pressure in it. This causes liquid in the tube to rise. (It rises due to the higher pressure acting on the other end. The tube is marked to indicate the wind speed. Alternatively, if the open vertical tube is in still air and it is connected at its lower end with a horizontal tube containing a flowing liquid, the liquid in the vertical tube will fall when the horizontal flow past the lower end increases.
