# Posts by Sammi

Total # Posts: 116

History
Whoa, that's alot of years!! Thanks!

History
How many years has it been since the first century to today?

physics
A transfer of heat occurs with a pot of 8.0 kg of water that changes from 400 degrees kelvin to 320 degrees kelvin. How much heat is absorbed or given off?

physics
i'm not very good at physics and i have an exam tomorrow!! for the first one do i use the formula F=-Kx to make the answer -4500 ? and for the second i really have no idea what formula to use what is the value for k if a spring stretches 0.4m when submitted to a 1800N ...

physics
i'm not very good at physics for the first one do i use the formula F=-Kx to make the answer -4500 ? and for the second i really have no idea what formula to use

physics
what is the value for k if a spring stretches 0.4m when submitted to a 1800N force? How much force is needed to keep a 23 kg box moving at a constant velocity across a warehouse floor if the coefficient of friction between the box and the floor is 0.88?

physics
In Harmonic Motion how does the value of g affect the time period of a pendulum?

physics
The horizontal acceleration of a projectile is what?

physics
The slope of the tangent on a position time graph equals what?

THS
A motor does 25,000 J of work in 250 seconds. What is the power produced?

math
0.57 repiton

Physical Science
can you uncramble this? F E C Y M R A N T A T S I D M I L O W O H F R S

Science
Hey....I need help with my homework. I'm in 9th grade, high school. Its pyhsical science about Atomic Math.. Heres the question: Multiply the atomic number of hydrogen by the number of electrons in mercury, which has an atomic number of 80.

mustangs/horses
well i know some good pics.

Math
How do you solve a double sided variable? I am not sure what you are asking. Even so, since this is not my area of expertise, I searched Google under the key words "'double sided variable' math" to get this possible source: http://en.wikipedia.org/wiki/...

unscramble
dioakk earbs

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