MARIANA OL
Suponga que un atleta esté entrenando salto con
garrocha. Si parte de reposo, él recorre cierta
distancia, al final de la cual su velocidad vale 10 m/s.
Si en ese momento salta, la altura máxima que
puede alcanzar por lo menos teóricamente, debe
e) 7.0 m
a) 2.0 m
b) 3.5 m
C) 5.0 m
d) 6.5 m

The star betelgeuse is about 600 light-years away. if it explodes tonight, a. we'll know because debris from the explosion will rain down on us from space.b. we'll know it immediately because it will be brighter than the full moon in the sky.c. we won't know about it until 600 years from now.d. none of the above.

In one or two sentences, describe how you did in the balancing game. in a few more sentences, explain one strategy you learned for balancing more complex equations.

In a classical model of the hydrogen atom, the electron moves around the proton in a circular orbit of radius 0.053 nm. what is the electron's orbital frequency? what is the effective current of the electron?