If the moon is directly over the beanstalk, how many days after the beanstalk was planted would the beanstalk reach the moon? (The moon is 238,900 miles from the earth, and there are 5,280 feet in 1 mile.)

28.23 days

Explanation:

Length of magic beanstalk=4 feet

Height increasing exponentially and double each day.

We have  formula

Where t=Time (in day)

We have a=4

When t=1 then y=8

Distance between moon and earth=y=238,900 miles=

Substitute the values

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

less than one you can't create energy