# Posts by ran

Total # Posts: 7

**math - probability**

put all the letters in a hat. What is the p(vowels)= 5/26 p(first half of alphabet -13)= 13/26=1/2 p (v and f) p (vc) p(v or c) not sure how to do the and question or the "or" question and not sure what v with a little c up to the right means

**Math**

tan 19° = height/4.3 miles h= 4.3 x tan 19° h = 1.48 miles

**physics 20**

Jack the Jaguar can run for only 1.0 min at 13.0m/s before he has to stop to rest, while Zeke the zebra can gallop at 7.25m/s for 5.0 min. How long does Zeke actually have to run for to elude Jack? Can Jack catch Zeke for lunch if they are initially 350m apart?

**physics 20**

Mr. Smith is standing 50m from a large bell. With his mighty throwing arm, Mr.Smith throws a rock at the bell and he hears the sound of the bell 4.5s later. If the speed of sound is 330 m/s, what was the speed of the rock in the air?

**physics 20**

Mr. Smith is standing 50m from a large bell. With his mighty throwing arm, Mr.Smith throws a rock at the bell and he hears the sound of the bell 4.5s later. If the speed of sound is 330 m/s, what was the speed of the rock in the air?

**Statistics**

k>

**outer space**

how made the name science

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