Recent content by DarkPhoenix

The 2nd equation is y = 8 - 2x

Sorry the 1st equation was y= (4/5)2^x The 1st Co-ordinates are (0,8) since the y-intercept is 8 but I don't know how to find the 2nd Coordinates (x,y)

Homework Statement I have been given this equation : 4/5 X 2^x I have drawn the graph. Now, I was asked to draw the graph of y = 8 – 2x by using the 1st equation above. Can you help me in doing so? I know that the 1st Co-ordinates is (0,8) how can I find the other co-ordinate to...

Homework Statement (1) A1(2,1) --> B1(3,0) A2(0,1) --> B2(3,-2) A3(3,3) --> B3(5,1) P(4,4) The reflection, M, Maps Triangle A onto Triangle B Given that M(P) = Q, write down the coordinates of Q. C1(-3,4) C2(-3,2) C3(-5,5) The rotation R maps Triangle A onto Triangle C...

Homework Statement PQ = (-2,3) QR = (1,0) RS = (1,-5) Find PS. PS = PQ + QS ?

Homework Statement An oxide of chlorine was analysed. A 0.366 g sample was found to contain 0.224 g of oxygen. Calculate the empirical formula of this oxide. The Attempt at a Solution Cl = 0.366/35.5 = 0.10 O = 0.224/16 = 0.014

(b) An uncharged metal-coated sphere hangs from an insulating thread. The sphere is brought near to the rod. The sphere is attracted to the rod, as shown in Fig. 11.1. (i) Describe and explain what happens to the free electrons in the metal-coated sphere as it approaches the rod...

Homework Statement https://www.physicsforums.com/attachment.php?attachmentid=21003&stc=1&d=1255013927 I need help for number 11(b), (d) The Attempt at a Solution (b)(i) Electrons move towards the right since like charges repel. (ii) Unlike Charges attract. Thus, positive...

https://www.physicsforums.com/attachment.php?attachmentid=21003&stc=1&d=1255013927 I need help for number 2(b) A student investigates the evaporation of water. He pours 100 cm3 of water into measuring cylinder A and 100 cm3 of water into measuring cylinder B. Measuring cylinder A is kept...

https://www.physicsforums.com/attachment.php?attachmentid=21003&stc=1&d=1255013927 I need help for number 1(b) State the distance between the two athletes as the winner passes the 100 m mark. Tried to find the are under graph, but does not work. Thanks.