Recent content by sharonita

My question is as follows: If you wsh to save fuel on a cold day. and you're going to leave your house for a half hour or so, should you turn the thermostat down a few degrees, down all the way, or leave it at room temperature. I said that I would leave it at the same temperature since I'm...

ohhhh. okay thanks a bunch! im such a newbie, that's all. :)

6800...thanks!

But wasnt the weight 6.8kg?

i reallllyy need help =\ anybody?

Heres the question: A 6.8-kg piece of metal displaces 1 liter of water when submerged. Calculate its density. So I have no idea where to begin or how the displacement relates to the density. What can you suggest? Thanks!

Thanks so much! Wow this forum is amazing&thanks so much for making me solve it myself. Not many people do that!

I honestly don't know how. Whats the formula for that?

The air resistance is the force??

I have absolutely no idea. Maybe it tells you that air resistance isn't noticable when the only force is gravity? Bear with me =\

Then the acceleration would be zero? If that is so then.. the force would be zero?

mass x acceleration? all I am given is the acceleration. how do i apply the equation? ps. thank you so much for your help!

So, here's the question: The speed of falling rain is the same 10m above ground as it is just before it hits the ground. What does this tell you about whether or not rain encounters air resistance? So here's my attempt: Since the speed of the falling rain is just the same 10m above ground...