Hey... I'd appreciate it if someone could verify these answers...(adsbygoogle = window.adsbygoogle || []).push({});

Q1) An object is dropped from an airplane. During the first second, the object falls 4.9 m. During the 2nd second, it falls 14.7 m. During the third second, it falls 24.5 m. During the fourth second, it falls 34.3 meters. If this pattern continues, how far will the object fall during the tenth second? Find the total distance the object will fall after 10 seconds.

A) An=A1+(n-1)D

A10=4.9+(10-1)9.8

A10=93.1 m

____________________________________________________________

Q2) In early growth of an embryo, a human cell divides into two cells, each of which divides into two cells and so on. The number an of new cells formed after the nth division is An= 2^(n-1). Find the sum of the first 9 terms of the series to find the total number of news cells after the 8th division.

A) 9*(2+9/2) = 9* ( 5.5 ) = 49.5 cells

____________________________________________________________

Q3) The legnth o fthe first loop of a spring is 20 inches. The length o fthe second loop is 9/10 of the length of the first loop. The length of the third loop is 9/10 of the length of the second loop, and so on. if the spring could have infinitely many loops, would it length be finite? if so, find the length.

A) how do i do this?

are the above answers correct?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Arithmetic sequence problem

**Physics Forums | Science Articles, Homework Help, Discussion**