¿Qué masa de hielo a 0 °C se puede fundir con 3520 cal? a)42g
b)44g.
c)50g.
d)46g.
Otro:

Why do astronauts in the space shuttle weigh less?

Photons with the highest energy have the longest period

Asmall 12.00g plastic ball is suspended by a string in a uniform, horizontal electric field with a magnitude of 10^3 n/c. if the ball is in equilibrium when the string makes a 30 ° angle with the vertical, what is the net charge on the ball?