´Enlaces covalente Polar´

1.- agua
2.- metano
3.- HCl

Avery hard rubber ball (m = 0.5 kg) is falling vertically at 4 m/s just before it bounces on the floor. the ball rebounds back at essentially the same speed. if the collision with the floor lasts 0.05 s, what is the average force exerted by the floor on the ball?

True or false: the revolution of the earth creates day and night as it rotates around the sun

Which type of basaltic lava flow has a fairly smooth