thank you i think you cleared up what i misunderstood, but now I am wondering if 'potential' applies because i thought its possible for information to travel faster than the speed of light?
I'm reading A Brief History of Time by Stephen Hawking and he says that "gravitational effects should travel with infinite velocity" if an object is moved and therefore the gravitational force between them is instantly changed. this gravitational force then moves faster than the speed of light...
I too am reading this book and had a few questions about this chapter. all the replies so far seem pretty deep rather than "baby step" so i thought I would throw in what I thought of it because my "understanding" is very simple.
so i thought the idea was that light waves would travel through...
If all the air is removed from, say a room-sized vacuum, is the air pressure inside the room zero?
and if so, would a human burst like a balloon (the opposite effect of being crushed by an extreme amount of pressure) if put in such a situation? is it similar to the conditions an astronaut...
How did you get that h(1+t)=16+24(1+t)?
and when i fill in the rest i get 16+24(1+t)-24 which when worked out would be 16+24t and is not right
:confused:
1. Homework Statement
Find the instantaneous velocity at t=1 by computing v(1)= [h(1+LaTeX Code: \\Delta t)-h(1)]/LaTeX Code: \\Delta t
I found that v(1)= -8ft/sec. Also I know h(1)=24 but i don't understand how to manipulate the h(1+LaTeX Code: \\Delta t) to get the solution.
2...
Homework Statement
Find the instantaneous velocity at t=1 by computing v(1)= [h(1+\Deltat)-h(1)]/\Deltat
I found that v(1)= -8ft/sec. Also I know h(1)=24 but i don't understand how to manipulate the h(1+\Deltat) to get the solution. Homework Equations
h(t)=16+24t-16t2The Attempt at a...