Recent content by catala

I have done the following: \frac{500}{\sin 90º} = \frac{400}{\sin \beta} \to \beta = 53, 13º 90º + 53,13º + \alpha = 180º \to \alpha = 36,87º \sin 36,87º = \frac{h}{500} \to h = 300 A_{triangle} = \frac{b*h}{2} = \frac{400 \cdot 300}{2} = 60000m^2 A_{rectangle} = a * h = 640 * 300...

Homework Statement http://ima.cs-gamers.com.ar//images/490matjhs.jpg I have to calculate the surface from the object and the angle alpha. Homework Equations A_{triangle} = \frac{b * h}{2} \frac{a}{\sin \alpha_1} = \frac{b}{\sin \alpha_2} Pythagorean Theorem The Attempt at a Solution...

Hi, I need help in the following demonstration: If (m,n)=d then \Phi(mn)=\frac{d}{\Phi(d)}\Phi(m)\Phi(n) Thank you very much for your support! :D

Homework Statement An antitank missile (m = 12kg.), when it reaches the maximum height (v = 0) explodes breaking into a large piece of 5kg. and a multitude of small pieces exiting vertically upwards with a speed of 40m / s. What is the speed of the first piece?. A locomotive traveling at...