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Tracks in cloud chambers are the "contrails" left by ionizing particles. The magnetic field that set up across the observational space will act on charged particles and deflect them. The curves these particles carve out are better measured a bit away from the site of the origin because greater accuracy can be obtained out there.

If we look at the arc a charged particle takes when acted on by the magnetic field, it is easier to take measurements along the curve farther out because there will be "more track" to work with, and greater accuracy will result. This might not be true with particles that lose energy quickly and "spiral in" to disappear, but it is a good general idea to make measurements out away from a scattering event because better accuracy can usually be had there.

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Q: When dealing with an air track why is it smart to avoid measuring right at the collision site?
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When measuring the NPA measure from the?

you measure from the right nostril to the right ear lobe.


What is the result of a collision with a large object from space is often an impact?

You've definitely got that right ! There's no debating the fact that the result of a collision is often an impact.


What are four tools used for measuring length precisely?

Rulers, Tape Measures, Calipers, and Opisometers.


Why ohm meter scale is reverse of other measuring devices?

For an analog ohmmeter, with a needle that moves left and right: The needle is spring loaded; when current is running through the meter, the current causes a small magnetic field in the windings of the meter mechanism, causing it do deflect to the right. If you're measuring current or voltage, if no current is running through the meter, then no deflection, so it should read zero on the left hand side of the scale. When measuring ohms (resistance) on an unenergized circuit, the battery in the meter provides the current. When you short the 2 leads together you have zero resistance to current (0 ohms). When you have an open circuit, no current flows, so there is an infinite resistance. So infinity is on the left side of the scale when no deflection, and zero is on the right side with maximum deflection (maximum current).


How do you convert from parsecs to inches using long hand division?

There is no point in doing this. This would be even sillier than measuring the distance from New York to Los Angeles by the thickness of a piece of paper.Use the right tool for the job.

Related questions

Who is responsible for keeping a sharp watch to avoid collision between two boats?

The boater on the right is responsible for keeping watch to avoid a collision between two boats.


Follow the four Rs Read Right Reduce and Ride when?

When you are in a situation that might lead to a head on collision. Read the road ahead. Reduce your speed. Drive to the Right. Ride off the road if necessary.


Why does Canada drive on the right side of the road?

In Canada there is a yellow line in the middle of the road to separate the lanes. It is on your left side so drivers stay on your right to avoid collision from the cars on the other lane.


When facing a head on collision you should?

Assuming the question means you cannot avoid the collision: Brake, leave the car in gear if manual, and keep in a straight line. Your car is designed to absorb straight on impacts much more safely then rotational impacts, so if you must take a hit, do so straight on.


What does avoid maneuver mean in regard to driving directions?

Ok lets say you are driving in your lane on the right and the vehicles coming at you on your right lane the avoid maneuver would mean that you would swerve right NOT LEFT to avoid the collision. Because you never know if guy looked down to check where his cell phone fell or something and when he looks up he will swere back into his lane but you dont know if he will realize that he is in wrong lane before you two collide so you brake and swerve right


Who is responsible for avoiding collision between two vessels?

Rules of the road. Just as with cars, there are rules set up so that one person realizes they are in the wrong and can take corrective action. For example, with boats and cars, if you are backing up you have no rights and have to take the responsility to make sure there are no others in your path. Interestingly, rule #1 is "Avoid collisions at all costs."So even if you are in the right as far as the rules of the road go, if you do nothing to avoid a collision, and a collision results, you can be held equally responsible for not following rule #1.


Who is at fault when on a double yellow two lane road a car stops suddenly you go into the left lane to avoid the collision and the car turns left Car possibly had a right turn signal on?

Sorry but you are at fault.


What should you do to keep from coliding wuth another boat?

Read and understand the Collision Avoidance regulations, which are international. The simplest rule on open water is that if you are crossing the course of another boat so that it seems there might be a collision, then if the other boat is on your starboard side (the right), you must do something to avoid a collision, which could be that you slow down or you might alter course to starboard. If you have the other boat on your port side (the left), you just have to carry on as normal. A good test to check for the possibility of a collision is to watch the direction that the other boat is in, relative to you. If the direction does not change, you are on a collision course.


Who discovered the means for measuring the length of sides of a right angle?

Pythagoras discovered the means for measuring the length of sides of a right angle.


Read right reduce and ride?

Reduces head on collision


What is the use of a measuring jug?

The use of a measuring jug is to find the right amount of a liquid


You had the right of way going straight a car turning left pulled out and hit you who is at fault?

In almost all circumstances, the vehicle making the left turn must yield. And you, yourself, answered your own question by stating that you had the right of way. However, if you saw what was happening in time to avoid the collision, but hit the horn instead of the brakes, then you are partly liable for consequences you failed to avoid.