A2.99-m-long2.99-m-long rod, as measured in its rest frame, speeds by you longitudinally at 6.49×107 m/s6.49×107 m/s . you measure its length as it passes. by how many millimeters do you determine the rod has contracted?

The contraction in the rod is 71 mm.

Explanation:

Given that,

original length L'= 2.99 m

Speed

We need to calculate the length

Using expression for length contraction

Where,

Where, v = speed of observer

c = speed of the light

Put the value into the formula

The expression for the contraction in the rod

Hence, The contraction in the rod is 71 mm.

explanation:

a fuel engine ( known as a gasoline engine in american english )is an internal combustion engine with spark ignition, designed to run on petrol (gasoline) and similar volatile fuels.

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )