Thanks. do you have any examples on how to find lengths and stuff? i mean if we already have the lengths, and we need to find the sin, then what is the point of sin and cos?
but my boyfriend sometimes wants to kiss me under the stars, and i have to refuse, and drag him inside. I'm in quite a sticky situation here, and i would prefer science to be on my side rather than heresy.
my teacher told me that if i look at the stars too long i become deaf since the stars emit special elctromagnetic waves which make my ears not work properly. but i don't get why. because stars don't make any sound...
okay thanks so much for your guys help but i just don't understnad what is a speed and what is a velocity.
"since direction is a component of the velocity vector"
whoa whoa whoa back up the truck there. what is a component and how does that even mean velocity?
i think so. right now I am leraning about protons and elctrons and stuff, and my teacher told me that there are the same number of protons as elctrons and stuff, so i think your right. :)
"In the simplest terms, velocity is a vector rather than scalar measurement. It describes both the speed and the direction of travel. For instance, 30 miles-per-hour is a speed. 30 miles-per-hour east is a velocity."
I don't understand what vecotor means because it is so hard to understand...
I really do, I've been working really hard but I still have a lot of problems with trig. Like it's just so confusing and memorizing the angles and the sin and cos stuff. And I'm really starting to get into some really advanced physics, like learning about acceleration and stuff moving and stuff...
How do I understand them and what they do? I've memorized "soh-cah-toa", but I still don't get what is the point of it. Like what is the application of finding something divided by another thing?
What is a velacity? I am so confused. Further what is a acceleration?
I tried to read the wikipedia article on position, but it didn't make sense.
"A position, location or radius vector is a vector which represents the position of an object in space in relation to an arbitrary reference...