A quick and simple question. I just realized that this has been posted in the wrong section, but ill give it a try anyway. Does anyone know if it's possible to diagonalize a hollow matrix? What i mean by a hollow matrix is a matrix with only zero entries along the diagonal.
I've rewritten the problem so that it might be easier to understand:
Two balls lie on a table, each ball has a mass of m, and they are connected to each other
with a cord that has a length of 2l. A constant force ~ F pulls in the midpoint
on the string (x = 0), normally on the string's original...
The statement of the problem is as accurate as it can get. I've translated it from norwegian.
Newtons second law says that F = m * a, which means i can get a equation for a. a = F / m
What do you mean for each mass? The masses of the balls are the same, or am i misunderstanding something? I...
The problem that i am facing has to do with acceleration. The problem states that we have two balls with the same mass m that stands on two different tables. Between these balls are a wire with the length 2l, which i assume means 2 * l, where l is a value i choose. In the middle of the wire (x =...
I have tried to solve a problem about the amount of watts a motor needs to recive if i want an elevator of 1250Kg to move at a speed of 2m/s +/- 0,10m/s after 3 seconds. The motor has an efficiency of 0,80. I've tried looking at my teachers uni recording, but it doesn't seem to explain this part...
A gas with a volume of 8m^3 with a temperature of 400K gets warmed up to 550K with a constant pressure of 200Kpa. How much work has the gas done to the environment?
I think i might need to use the ideal gas law for this which is:
( P * V / T = N * K ) Where V is volume, T is temperature and N...
I see. Does the difference between initial and final temperature have to be something that i know from the beginning or is it something i can calculate?
I tried solving the question and came up with this:
QH2o = 4,18 * 10^3J * Kg^-1 * K^-1 * 2Kg * 100K
P * t = Qh2o
2Kw * t = 836000J
t = 836000J...