Accuracy is the correctness of a measurement. true or false.

Physics

2 answers:

Over [174]3 years ago

8 0

Answer:

True

Explanation:

Accuracy indicates how close to the true measurement you actually are.

Let us understand this with an example.

If a rod produced by a manufacturer has a specification of 1 meter length and after measuring it you also get 1 m length then the measurement is highly accurate.

There is another term called precision which is used in the same sense as accuracy called precision but they do not have the same meaning. Precision refers to how close in the measurements you are while taking multiple readings.

mash [69]3 years ago

6 0

It is true i think so

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A kayaker needs to paddle north across a 100-m-wide harbor. The tide is going out, creating a tidal current that flows to the ea

Savatey [412]

Answer:

$41.81^{\circ}$

Explanation:

The tidal current flows to the east at 2.0 m/s and the speed of the kayaker is 3.0 m/s.

Let Vector $\overrightarrow{OA}$ is the tidal current velocity as shown in the diagram.

In order to travel straight across the harbor, the vector addition of both the velocities (i.e the resultant velocity, $\vec {R}$ must be in the north direction.

Let $\overrightarrow{AB}$ is the speed of the kayaker having angle \theta measured north of east as shown in the figure.

For the resultant velocity in the north direction, the tail of the vector $\overrightarrow {OA}$ and head of the vector $\overrightarrow{AB}$ must lie on the north-south line.