<p>i took mines last june as a junior failed it with a 58,and re took it in august scoring 20 points higher than i did in june</p>
<p>I'm with you affle, what is jmap?? I have no idea!</p>
<p>Last year's was a joke. I got a 98.</p>
<p>jmap doesnt have physics yet</p>
<p>In my school out of 120 people who took the physics regents, only 9 got in the 90's (thank God i was one of them). There were quite a few failures. My teacher didn't teach us some of the material and we really didn't review(instead my class played chess and beer pong, which my teacher participated in too). At least this man only teaches one of the physics classes, unfortunately I'm in his class. The other teacher (aka the real physics teacher) was looking through my test right after i handed it in...i was one of the people who had the chance for a 100 but I blew it and got a 94. And this teacher was pretty much accusing my teacher of not teaching my class what was on the regents, although surprisingly, no one failed in my class and every other class had failures in it! (although there were a lot of 65's and 66's)</p>
<p>eh just looked up my grade, got a 97. just called up two people who took it as well, one got an 88 and the other a 94</p>
<p>how do you look up your grade? on a website...?</p>
<p>my school has a website where teachers update grades</p>
<p>It should be up pretty soon...</p>
<p>oh man wish our school did</p>
<p>My scores will be on my report card, which I will get next week. I'm so anxious for them!!</p>
<p>The exam is up on jmap, but not the solutions...</p>
<p>I think I'll post my answers, nothing really to do at the moment.</p>
<p>Edit: Here is what I got</p>
<pre><code>1. 1
2. 1
3. 2
4. 4
5. 2
6. 2
7. 2
8. 4
9. 3
10. 1
11. 4
12. 3
13. 2
14. 3
15. 1
16. 2
17. 4
18. 4
19. 1
20. 3
21. 1
22. 3
23. 3
24. 1
25. 2
26. 4
27. 3
28. 3
29. 1
30. 1
31. 4
32. 2
33. 1
34. 3
35. 1
36. 2
37. 1
38. 2
39. 3
40. 3
41. 4
42. 2
43. 4
44. 1
45. 3
46. 1
47. Five lines going from positive to negative.
48. 3.2x10^-16N
49. 1,6 2,3 3,2 6,1
50. Graph the points
51. Curve that goes through respected points
52. 52.0N
53. 52.0N
54. KE goes down, Internal energy remains the same
55. Parabolic curve going up then into the ground
56. Maximum altitude goes up
57. Horizontal distance goes down
58. 2.4 ohm
59. 4A
60. 12 ohm
61. 5cm line going straight up.
62. 6N
63. 2N
64. 2.04kg
65. .98m/s^2
66. .1875J
67. .97m
68. 17 degrees
69. 11.6 degrees
70. 11.6 degree line bending towards the normal
71. 17 degree line reflecting away from the normal
72. 3.33x10^-19 J
73. 2.08eV
74. n=3
</code></pre>
<p>ok...you def got 100. and i def got below a 90. but im not sure about the internal energy one...? i said it increases, because of friction.</p>
<p>I don't see the exam for jmap >.<</p>
<p>But how'd you do #38 and #39? I know I had trouble with them.</p>
<p>38: You have to add the vectors at a 90 degree angle so you get a right triangle. root(1.5^2+2^2) = 2.5</p>
<p>39: The time it takes to cross the river only depends on the rate of the horizontal component so 30/2 = 15s</p>
<p>Internal energy ALWAYS remains the same. The KE goes down but the PE goes up at the same rate.</p>
<p>isn't the maximum horizontal distance achieved at a firing angle of 45?</p>
<p>How did you find the exam and there are no answers!</p>
<p>No, the maximum horizontal distance would be if the angle was smaller, not larger. There is a smaller horizontal component to the initial speed.</p>
<p>yunu, you are wrong. At a lower angle, the horizontal velocity is greater (v[horiz] = v*cos(theta)). The maximum horizontal distance is achieved with an angle of 45 degrees (neglecting air resistance).</p>
<p>Yes, I know that, I just said that, and the question asked what would happen if you increased the angle to 45 from 30. It DECREASES.</p>