Determina el largo de la palanca para una fuerza de 50 N, colocando a 1.2 m de distancia del fulcro un peso de 120 N

If a simple machine reduces the strength of a force, what must be increased?

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?