Homework Statement
A rectangular barge floats in freshwater. When a 400 kg block is loaded on the 5 m long by 2 m wide barge, the barge sinks a few centimeters deeper. How much deeper does the barge lower?
Homework Equations
Archimedes' principle
This is where I am stuck. My textbook doesn't...
Sorry it took me a little while to get back, been working. I don't get weekends off very much :H
The ball was thrown at a 45 degree angle. So it would also fall at a 45 degree angle.
good question... It's been a long day here at the power plant.
I always tend to get confused when i try to solve for certain things. i was wanting to solve for "r" by multiplying both sides by 10.
so now i am getting; 30rad/s = 10m/s / r
r=10/30
r=.33
so that is just a radius. The diameter...
Homework Statement
A bicycle tire rotates at 30 radians/s. If the bicyclist travels at 10 m/s, what is the diameter of the tire? Homework Equations
I found; for angular speed, w=v/r
and for linear speed; v=rw
where v=m/s
and w=radians/s
So if i am thinking correctly, i already know my angular...
Sorry I wasn't as clear earlier. It is hard for me to figure out what exactly I need to find and when. I found an example to my problem on Khanacademy.org and just watched it a few times and then used what i gained from the video to solve my problem. I was wanting to double check my approach and...
Homework Statement
A ball is thrown at 22 m/s at 45 degrees to the horizontal. A 5 foot tall fence is located 100 meters away. Does the ball make it over the fence?
Homework Equations
The Attempt at a Solution
Homework Statement
A rock thrown horizontally from a bridge hits the water below 30 meters away in the horizontal direction. If the rock was in the air for 2 seconds, how tall is the bridge?
Homework Equations
d=.5gt2The Attempt at a Solution
I think I am going about this the right way. Just...