A given volume of hydrogen diffused through a porous plug in 10 seconds, how long will it take the same volume of oxygen to diffuse under the same condition?

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?

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate