John dragged a wooden block across a table with 4 different surfaces and the resultsof the experiment are shown in the table below. type of surface average force needed (n)a 105b 88c 127d 94(a) arrange in order, starting from thesmoothest surface to the roughestsurface. in another experiment, john gluedsurface a from the first experimentonto a ramp and pulled the samewooden block up the ramp. (b) will the force needed to pull the wooden block up the ramp be more than, less than orthe same as 105n? explain your answer.

2.22/3.33 points | previous answers tamucolphysmechl1 4.pre.002. ask your teacher my notes question part points submissions used on a frictionless air track, a blue glider with mass 0.200 kg is moving to the right with a speed of 8.00 m/s. it strikes a red glider that has mass 0.600 kg and that is initially at rest. after the collision, the blue glider is moving to the left with a speed of 2.40 m/s. (a) what are the magnitude and direction of the velocity of the red glider after the collision? magnitude 3.33 m/s correct: your answer is correct. direction correct: your answer is correct. (b) is this collision elastic?

How are the crust and the inner core alike? a) they are both solid. b) they both have the same temperature. c) they are both under the same pressure. d) they are both very close to the center of the earth.

The energy released by a nuclear fusion reaction is produced when