Recent content by Saad

AB is the diameter of a semicircle. Points C and D are ANY two points on the arc of the semicircle. AD and BC intersect at E. AC and BD are extended to meet at F. Prove that FE extended is perpendicular to AB. I need any help possible because i have no idea of how to solve this proof problem...

I am finding trouble in the following qs, if someone can jus show me how to start off it will be very helpful. Plzz feedback any qs that are do able. Thnks. 1. A child in a boat throws a 5.40kg package out horizontally with a speed of 10m/s. Calculate the velocity of the boat immediately...

Feedback any qs that are do able. Thnks. 1. A child in a boat throws a 5.40kg package out horizontally with a speed of 10m/s. Calculate the velocity of the boat immediately after, assuming it was initially at rest. Say the mass of the child is 26kg and the mass of the boat is 55kg. 2. A...

Here's an interesting question which is related to proofs, one of the hardest chapters of math: If a circle can be drawn to pass through the 4 vertices of a Quadrilateral, we call this a "cyclic quadrilateral". What special properties do you think a cyclic quadrilateral has that wouldn't be...

Can you think of a statement, not necessarily in geometry, which sounds true, appears to be true in some cases, but is actually false.

Does this look ok? Determine your variables: V = 40m/s R = 100m F = 800N = mg = m (9.8m/s^2) thus: m = 81.6kg a_{rad}=\frac{mV^2}{R} = (81.6kg) (40m/s)^2 / 100m = 130560 / 100m = 1305.6m/s^2 1st concept --> Fnet = ma = (81.6kg)(1305.6m/s^2) = 106537N...

Does this look right? Box m2: Weight of m2 box = mg = (2kg)(9.8) = 19.6N Fg = 19.8N Fgx = 19.6Nsin30 = 9.8N Fgy = 19.6Ncos30 = 17N Box m1: Weight of m1 box = mg = (1kg)(9.8) = 9.8N Fg = 9.8N Fgx = 9.8sin30 = 4.9N Fgy = 9.8cos30 = 8.5N Both boxes in a system...

Ohh my badd..your right...but is the mass i used in the equation rite? and also..does this answer seem approriate, because it is still approximately 100N.

Plzz helpp I tried this question the way i was told to..but i dunt think it works..please help Variables: r = 1.274 X 10^7 m v = 465 m/s Weight = 100N at South Pole Mass = F / g = 100N / 9.8 = 10.2kg Gravity pulls stuff towards earth. Velocity of Earth tries to throw away from earth...

Incline forces question..really hard Has anyone been able to figure this one out?? This one seems to be very challenging...please try!

really appreciate it, this was helpful! thanks!

I have a unit test on 3D-Planes coming up! And I was wondering if in 3D, a line and a plane intersect at a single point. How would you determine the equation of the reflection of the line in the plane? Please try to provide the steps. Thanks!

Assume that the Earth is a perfect sphere of diameter 1.274 X 10^7 m. If an object has a weight of 100 N while on a scale at the south pole, how much will it weigh at the equator? Assume that the equatorial spin speed, v = 465 m/s.

Incline forces question..really hard Just recently NASCAR has increased the incline of their race track curves to 18 degrees at the bottom of the curve and 20 degrees at the top. The bottom part of the track (18 degrees incline) has a radius of 60m, where as the top part of the track (20...

A scale is fitted into the seat of a roller coaster car and a person weighing 800 N sits down on it. The car then descends along a path that has the shape of a 100.0 m radius vertical circle with its lowest point at the bottom where the car reaches its greatest speed of 40.0 m/s. What is the...