How many years older will you be 1.30 billion seconds from now? (assume a 365-day year.)

41.2 years older

Explanation:

Note: 60 seconds makes 1 minute

Also note that 1.3 billion seconds = 1300000000 seconds

60 s = 1 min,

Then, 1300000000 s = (1300000000/60) min.

= 21666666.667 min.

Also

Note: 60 minutes makes one hour

60 min = 1 hour

21666666.667 min = (21666666.67/60) hours

= 361111.111 hours.

Also,

Note: 24 hours makes 1 day.

24 hours = 1 day,

361111.11 hours =(361111.11/24) days

= 15046.296 days.

Also

Note: 365 days makes one year

365 days = 1 year

15046.296 days = (15046.296/365) years

=41.2 years.

Hence i will be 41.2 years old from now.

the device is called “ rocket engine”

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.