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DedPeter [7]
3 years ago
8

Which best describes a reference frame?

Physics
2 answers:
MissTica3 years ago
7 0
C. a position from which something is Observed.
babymother [125]3 years ago
3 0

By definition we have to:

A system or frame of reference are those conventions used by an observer (usually standing at a point on the ground) to be able to measure the position and other physical magnitudes such as speed and acceleration of one or several objects.

The numerical value of some magnitudes can also be relative to the reference system when we refer to the relative movement. There are always mathematical relationships between the observer and the relative magnitudes.

Answer:

C. a position from which something is observed

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The speed stays constant after the force stops pushing.

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Speed always stays constant when the force stops pushing it.

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3 years ago
an empty propane tank dropped from a hot air balloon hits the ground with a speed of 143.8 m/s. from what height was the tank re
vodomira [7]
What you know:
Vi=0m/s
Vf=143.8m/s
A=-9.8m/s
d=???
Use the equation Vf^2=Vi^2+2A(d)
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d=(143.8)^2/2(-9.8)
d=20678.4/-19.6
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Leya [2.2K]

Answer:

Accuracy is how close a measured value is to an accepted value. <u>Precision is how close measurements are to one another.</u> To make measurements, you have to evaluate both the accuracy and the precision to get a correct value.

3 0
2 years ago
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seropon [69]
Uniform velocity means no Net force and therefore no acceleration. Acceleration only happens when the velocity changes.
4 0
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In which situation is chemical energy being converted to another form of energy?
otez555 [7]

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