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AP Physics 1 Videos 86 videos

AP Physics 1: 2.5 Changes and Conservation Law
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AP Physics 1: 2.5 Changes and Conservation Law. At what point(s) in this situation is energy lost in any form?

AP Physics 1: 1.4 Waves
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AP Physics 1: 1.4 Waves. Which of the following is technically true for Max as he stands at the edge of oblivion? 

AP Physics 1: 1.4 Changes and Conservation Laws
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AP Physics 1: 1.4 Changes and Conservation Laws. Find the current across R2.

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AP Physics 1: 1.1 Fields in Space 195 Views


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Description:

We've heard of some crazy dieting fads, but leaving the planet may take the cake. We don't suggest you do that, but we do  suggest you answer this shmoopy AP Physics question! 

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English Language

Transcript

00:00

Thank you We sneak and here's your shmoop du jour

00:05

Brought to you by planet z knock We know what

00:08

you're thinking there's No planet z noche But maybe that's

00:11

just what they want us to think All right the

00:13

gravity on planet zi knock is half a strong as

00:16

earth's gravity If a student weighs a hundred pounds on

00:19

earth how much would he weigh on planet zi knock

00:22

and here the potential answers right there Okay well if

00:27

we just went ahead and guessed b since that's half

00:30

of one hundred fifty pounds Well a good job that's

00:33

Correct But while we appreciate a good guesser let's take

00:36

a look at the mass so we can understand why

00:38

b is the right answer Well wait is the measure

00:41

of gravity's force on the mass of an object The

00:44

equation that expresses this relationship is wait equals mass times

00:50

gravity right there Weapons of mass gravity Okay well on

00:54

earth gravity equals nine point eight meters per second squared

00:58

let's Change meters toe feed and work with thirty two

01:01

feet per second squared And since we already know the

01:05

students wait one hundred fifteen pounds we can figure out

01:08

his mass with a little algebra if hundred fifty pounds

01:11

e equals m multiplied by thirty two then we couldn't

01:13

solve the equation by dividing both sides by thirty two

01:15

which would give us a mass of four point six

01:17

nine Now on xena the gravity is half a strong

01:21

so that means g now equals sixteen feet per second

01:25

squared In this case we multiply sixteen feet per second

01:28

squared by four point six nine slugs and we'd get

01:31

seventy five pounds So next time we need to drop

01:34

a few pounds without diet or exercise We'll just hop

01:36

on a spaceship take a left past neptune and in

01:38

a few hundred light years we'll get to z knock

01:41

And we just need to remember to bring a gift

01:42

for the sinak ian's They're pretty cool but we'll really 00:01:45.802 --> [endTime] kind of needy

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