## Search found 5 matches

Sun May 18, 2014 11:17 am
Forum: High School Physics
Topic: Hertz's Experiments
Replies: 1
Views: 13340

### Hertz's Experiments

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Tue Apr 08, 2014 10:58 am
Forum: High School Physics
Topic: 2009 HSC Physics Exam Question 19b
Replies: 6
Views: 18480

### Re: 2009 HSC Physics Exam Question 19b

The sample answers (here: http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2009exams/pdf_doc/physics-sample-answers-09.pdf ) say at the start that the sample answers are not intended to be "even complete answers or responses", unfortunately. Regardless, your original answer is the right ...
Mon Apr 07, 2014 5:08 pm
Forum: High School Physics
Topic: 2009 HSC Physics Exam Question 19b
Replies: 6
Views: 18480

### Re: 2009 HSC Physics Exam Question 19b

No, the sample answers didn't multiply by 2. I have copy pasted from the sample answers: Will need the perpendicular component of the velocity as the acceleration influences this component of the velocity only vh = 6.0 × 106 sin 60° = 5.196 × 106 m s−1 Determine time using v = u + at 0 = 5.196 × 106...
Mon Apr 07, 2014 12:01 pm
Forum: High School Physics
Topic: 2009 HSC Physics Exam Question 19b
Replies: 6
Views: 18480

### Re: 2009 HSC Physics Exam Question 19b

CONTINUED I then calculated the vertical velocity of the electron, given by 6.0 x 10^6 x sin60 = 5.196 x 10^6 ms-1 up the page, which was the same as the sample answer. Here, the question asks us to calculate when the electron reaches D. I used the equation y = ut + 1/2 at^2 I set y=0, since the ver...
Mon Apr 07, 2014 12:00 pm
Forum: High School Physics
Topic: 2009 HSC Physics Exam Question 19b
Replies: 6
Views: 18480

### 2009 HSC Physics Exam Question 19b

Hello Professor Joe A link to 2009 HSC exam paper: http://www.boardofstudies.nsw.edu.au/hsc_exams/hsc2009exams/index4.html#p - Question 19 b). I searched the forum for any queries regarding this particular question but I did not find any posts. I am having trouble understanding the solutions in the ...