13. Consider the following hypothesis: A snake will be more active when the heat lamp is switched on than it is when the heat lamp is turned off.
What is the outcome variable (dependent variable) in an experiment designed to test this
hypothesis?
م ن ق 4
whether the heat lamp is on or off
the number of snakes in the habitat
the number of times the snake moves
the size of the habitat

10. translate each of the following chemical equations into a sentence. a. 2 zns(s) + 3 o2(g) -> 2 zno(s) + 2 so2(g) b. cah2(s) + 2 h2o(l) -> ca(oh)2 (aq) + 2 h2(g)

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?