Question

An elevator descends into a mine shaft at the rate of 6 m/min. If the descent starts from 10 m

above the ground level, how long will it take to reach – 350 m.


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Answer 1

Q : An elevator descends into a mine shaft at the rate of 6 m/min. If the descent starts from 10 m above the ground level, how long will it take to reach – 350 m.

Solution :

Total distance elevator has to travel = initial position - final position

= 10 - (-350)

= 10 + 350

= 360 m

now,

elevator descends at rate 6m/min

= Elevator travels 6m in = 1 minute

= Elevator travels 1m in = 1/6 minute

= Elevator travels 360 m in = 1/6 × 360

= 60 minutes

= 1 hour

it will take the Elevator 1 hour

HOPE IT WILL HELP YOU ✌

Answer 2

Answer:

Isobars are atoms of different chemical elements that have the same number of nucleons. Correspondingly, isobars differ in atomic number but have the same mass number. An example of a series of isobars would be ⁴⁰S, ⁴⁰Cl, ⁴⁰Ar, ⁴⁰K, and ⁴⁰Ca.

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