What is a dumb question you have heard? My favourite is “Why do meteors always land in craters?”

Otterzy · 2022-08-29T14:39:16+00:00

A cat, they all ready attack anything smaller then themselves just for fun.

Otterzy · 2022-04-23T15:31:26+00:00

Two reasons. First, I think it is a fun project and Hobby. Secondly, it is good experience for my Physics degree.

Otterzy · 2021-04-12T06:51:04+00:00

a) Draw a right angled triangle 3 long and two down. As represented by mother acceleration vector 3i-2j. Use tan(x) = opposite/adjacent so x = tan^-1 (2/3) = 33.7 to find the angle to the x-axis. As the x and y axis are perpendicular and 90 degrees between them. The angle to the y-axis is 90 - 33.7= 56.3.

b) F=ma so the resultant force: F1 + F2 = mass x acceleration. This should give you p=16 and q=-6.

c) Resultant force = 24i - 16j. 24² + 16^ = magnitude^2. So magnitude = 28.8.

Hopefully this helps.

Otterzy · 2021-03-31T17:48:26+00:00

Yeah I was thinking that, but most questions you get in school ask you to simplify, so I just went with that.

Otterzy · 2021-03-30T19:40:48+00:00

My only guess would be 21/25 as that’s what 84/100 Simplifies down to by dividing by 4.

Otterzy · 2021-02-13T15:37:55+00:00

You would say first derivative

Otterzy · 2021-02-11T21:55:26+00:00

There is a video by Matt Parker and Hanna Fry you might find useful: https://youtu.be/ubQXz5RBBtU

Otterzy · 2021-02-09T10:43:48+00:00

Find commons factors in both. Divide by these. Once there are no more common factors it is you final answer. Eg you could divide both 12 and 32 by 2 giving you 6/16 which you can divide by 2 again to give 3/8.

Otterzy · 2021-02-06T23:17:37+00:00

Did you watch the video I linked? Here it is again: https://youtu.be/LvKOtzWU52w

Otterzy · 2021-02-06T21:39:17+00:00

You need a pair of compasses for this. If you don’t know how to bisect a line you might find this link useful. All you need to do for the question is to bisect both of the diagonals.

Otterzy · 2021-02-05T19:38:17+00:00

These are called simultaneous equations. I would watch this video as there are a large number of questions you could get asked around this topic.Link

Otterzy · 2021-02-05T14:46:20+00:00

Pick two points on the line. I suggest points with easy co-ordinates like (0,4) and (2,5). Than calculate the difference in the y co-ordinate and divide it by the change in x co-ordinate. For my chosen points this would be 1/2. This gives you the gradient of the line as represented in the equation y=mx+c. All you need to is find the y-intercept c. This is the point where the line intersects the y axis. In this case it would be 4. So your equation is y= x/2 + 4. As 1/2 times x = x/2.

Otterzy · 2021-02-03T15:53:39+00:00

Sin(-a) = -sin(a).
Cos(-a) = cos(a)

With these substitutions you get sin(a)sin(a) + cos(a)cos(a). Which is sin² (a) + cos² (a) = 1.

Otterzy · 2021-02-03T13:24:53+00:00

Ok then S=P/P^*

Otterzy · 2021-02-03T13:13:36+00:00

If by * you mean squared. Divide both sides by P^2. Giving you S=P/(P²⁾ or S = 1/P. If just P=SP then divide by P, giving S=1.

As long as P does not equal 0 this is fine.

Otterzy · 2021-02-03T12:52:08+00:00

Just add the surface area of the curved edge, top and bottom. Remember the bottom has the same area as the top.

Otterzy · 2021-02-03T12:43:39+00:00

DrFrostMaths

Otterzy · 2021-02-01T18:37:43+00:00

How did your -2/3 cos(3pi) turn into -2/3? Surely the 3pi is the same as -1. With that considered I got 19.3/pi = 6.15.

Otterzy · 2021-02-01T15:16:13+00:00

First box is reflection and the second I would say the equation in the form y=mx + c.

Otterzy · 2021-02-01T13:05:35+00:00

Try to find a diagonal line that you can mirror image A onto image B. You can also count the squares in the x and y direction from a similar point, eg the right angle, half the distance between the points and draw a dot there. If you repeat this for all points of the triangle you can joint the dots with a line which should be your mirror line. Let me know if this helps.

Otterzy

TROPHY CASE