answer have mercy 35 points

summarize your findings in a short report of 150 words. include your hypothesis, observations, data, and conclusions. be sure to answer the questions below as well as including your own findings and thoughts in your summary.

how many coins did it take to pull the bag off the table without the rollers (pencils)? with the rollers?

why didn't the box slide off the table before you put enough coins in the bag?

what happened differently when you put the rollers underneath the matchbox? why?

what factors caused a margin for human error in this investigation? what was your margin of error when you repeated this experiment?

what was the coefficient of friction for the matchbox? would the coefficient vary if you tied the string to a similar object of different mass? what about a different object with the same mass? explain.

what did you learn from this investigation? be thoughtful in your answer.

Much of the general structure and physical properties of the interior of the earth are inferred from: a)deep oil and gas bore holes b)geologic investigations c)analysis of seismic waves d) study of volcanoes

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 explanation is true about what happens to a ray of light when it strikes a mirror? a. a light ray is transmitted toward a mirror at a certain angle. the light ray is then reflected by the mirror at an equal angle but in the opposite direction of the transmitted ray. b. an incident ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then reflected at an angle equal to the angle of incidence but on the opposite side of the perpendicular line. c. a reflecting ray strikes a mirror at an angle with a line perpendicular to the mirror. the light ray is then refracted at an angle equal to the angle of the reflecting ray and on the same side of the perpendicular line. d. an incident ray strikes a mirror at an angle with a line parallel to the mirror. the light ray is then transmitted at an angle equal to the angle of incidence but on the opposite side of the parallel line. you so much! : -d take the time to try and answer correctly.