Shanti is riding on a train that is moving at a speed of 90 km/h. he is carrying a power cord for his phone that is 1.2 m long.
which describes the length of the power cord when shanti gets off the train? cannot be determined
less than 1.2 m
more than 1.2 m
equal to 1.2 m

equal to 1.2m

Explanation:

because she is only traveling by train .

Equal to 1.2 m

Explanation:

Given,

The cord having length 1.2 m is carried inside a train which is moving at the speed of 90 km/h,

∵ The measurement of an object placed inside a moving thing is not affected by the movement.

Thus, the length of chord would not be changed,

Hence, the length of the power cord when Shanti gets off the train would be equal to 1.2 m.

frequency or wavelenth of em radiation in a vacuum

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.